Annual report pursuant to Section 13 and 15(d)

COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Fair Values of U.S. Pension and Postretirement Benefit Plan Assets by Asset Category as Well as the Percentage That Each Category Comprises of Total Plan Assets and the Respective Target Allocations (Detail)

v3.22.4
COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - Fair Values of U.S. Pension and Postretirement Benefit Plan Assets by Asset Category as Well as the Percentage That Each Category Comprises of Total Plan Assets and the Respective Target Allocations (Detail) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 43,916 $ 58,175  
Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 23,246 44,596  
Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 10,978 3,845  
Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 77 88 $ 65
Fair Value, Inputs, Level 3 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 14 3
Fair Value, Inputs, Level 3 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 77 74 $ 62
United States      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 42,273 $ 56,069  
Percentage of Plan Assets 100.00% 100.00%  
United States | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 1,230 $ 2,671  
Percentage of Plan Assets 2.90% 4.80%  
United States | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 22,983 $ 44,023  
United States | Fair Value, Inputs, Level 1 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 870 2,564  
United States | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 9,719 2,468  
United States | Fair Value, Inputs, Level 2 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 360 107  
United States | Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 14  
United States | Fair Value, Inputs, Level 3 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 0  
United States | Minimum | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 1.00% 1.00%  
United States | Maximum | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 7.00% 7.00%  
United States | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 13,531 $ 22,654  
Percentage of Plan Assets 32.00% 40.40%  
United States | Equity securities | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 6,513 $ 12,840  
United States | Equity securities | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 698 484  
United States | Equity securities | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,168 3,054  
United States | Equity securities | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 3,610 4,199  
United States | Equity securities | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,542 2,077  
United States | Equity securities | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 7,211 15,788  
United States | Equity securities | Fair Value, Inputs, Level 1 | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,511 8,948  
United States | Equity securities | Fair Value, Inputs, Level 1 | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 698 484  
United States | Equity securities | Fair Value, Inputs, Level 1 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,168 2,901  
United States | Equity securities | Fair Value, Inputs, Level 1 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,663 1,972  
United States | Equity securities | Fair Value, Inputs, Level 1 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,171 1,483  
United States | Equity securities | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6,320 6,866  
United States | Equity securities | Fair Value, Inputs, Level 2 | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 4,002 3,892  
United States | Equity securities | Fair Value, Inputs, Level 2 | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Equity securities | Fair Value, Inputs, Level 2 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 153  
United States | Equity securities | Fair Value, Inputs, Level 2 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,947 2,227  
United States | Equity securities | Fair Value, Inputs, Level 2 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 371 594  
United States | Equity securities | Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Equity securities | Fair Value, Inputs, Level 3 | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Equity securities | Fair Value, Inputs, Level 3 | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Equity securities | Fair Value, Inputs, Level 3 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Equity securities | Fair Value, Inputs, Level 3 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Equity securities | Fair Value, Inputs, Level 3 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 0  
United States | Equity securities | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 20.00% 20.00%  
United States | Equity securities | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 45.00% 45.00%  
United States | Other Investments | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 4,368 $ 4,121  
Percentage of Plan Assets 10.30% 7.30%  
United States | Other Investments | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 5,012 $ 4,822  
Percentage of Plan Assets 11.90% 8.60%  
United States | Other Investments | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 829 $ 763  
Percentage of Plan Assets 2.00% 1.40%  
United States | Other Investments | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 2,415 $ 2,285  
Percentage of Plan Assets 5.70% 4.10%  
United States | Other Investments | Risk Parity Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   $ 295  
Percentage of Plan Assets   0.50%  
United States | Other Investments | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 170 $ 177  
Percentage of Plan Assets 0.40% 0.30%  
United States | Other Investments | Fair Value, Inputs, Level 1 | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 0  
United States | Other Investments | Fair Value, Inputs, Level 1 | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Other Investments | Fair Value, Inputs, Level 1 | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Other Investments | Fair Value, Inputs, Level 1 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 267 313  
United States | Other Investments | Fair Value, Inputs, Level 1 | Risk Parity Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   0  
United States | Other Investments | Fair Value, Inputs, Level 1 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Other Investments | Fair Value, Inputs, Level 2 | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,717 2,303  
United States | Other Investments | Fair Value, Inputs, Level 2 | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Other Investments | Fair Value, Inputs, Level 2 | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Other Investments | Fair Value, Inputs, Level 2 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 69 106  
United States | Other Investments | Fair Value, Inputs, Level 2 | Risk Parity Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   0  
United States | Other Investments | Fair Value, Inputs, Level 2 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 170 177  
United States | Other Investments | Fair Value, Inputs, Level 3 | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Other Investments | Fair Value, Inputs, Level 3 | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Other Investments | Fair Value, Inputs, Level 3 | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Other Investments | Fair Value, Inputs, Level 3 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Other Investments | Fair Value, Inputs, Level 3 | Risk Parity Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   0  
United States | Other Investments | Fair Value, Inputs, Level 3 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 0  
United States | Other Investments | Minimum | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 3.00% 5.00%  
United States | Other Investments | Minimum | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 3.00% 1.00%  
United States | Other Investments | Minimum | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 1.00% 1.00%  
United States | Other Investments | Minimum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 3.00% 1.00%  
United States | Other Investments | Minimum | Risk Parity Funds      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum   1.00%  
United States | Other Investments | Minimum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 0.00% 1.00%  
United States | Other Investments | Maximum | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 13.00% 10.00%  
United States | Other Investments | Maximum | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 15.00% 10.00%  
United States | Other Investments | Maximum | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 15.00% 10.00%  
United States | Other Investments | Maximum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 15.00% 10.00%  
United States | Other Investments | Maximum | Risk Parity Funds      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum   10.00%  
United States | Other Investments | Maximum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 5.00% 5.00%  
United States | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 14,718 $ 18,281  
Percentage of Plan Assets 34.80% 32.60%  
United States | Fixed Income Securities | U.S. Government Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 7,865 $ 12,083  
United States | Fixed Income Securities | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6,145 6,156  
United States | Fixed Income Securities | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 702 23  
United States | Fixed Income Securities | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6 19  
United States | Fixed Income Securities | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 14,635 25,358  
United States | Fixed Income Securities | Fair Value, Inputs, Level 1 | U.S. Government Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 14,628 25,358  
United States | Fixed Income Securities | Fair Value, Inputs, Level 1 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 7 0  
United States | Fixed Income Securities | Fair Value, Inputs, Level 1 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Fixed Income Securities | Fair Value, Inputs, Level 1 | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Fixed Income Securities | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 83 (7,091)  
United States | Fixed Income Securities | Fair Value, Inputs, Level 2 | U.S. Government Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (6,763) (13,275)  
United States | Fixed Income Securities | Fair Value, Inputs, Level 2 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6,138 6,142  
United States | Fixed Income Securities | Fair Value, Inputs, Level 2 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 702 23  
United States | Fixed Income Securities | Fair Value, Inputs, Level 2 | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6 19  
United States | Fixed Income Securities | Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 14  
United States | Fixed Income Securities | Fair Value, Inputs, Level 3 | U.S. Government Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Fixed Income Securities | Fair Value, Inputs, Level 3 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 14  
United States | Fixed Income Securities | Fair Value, Inputs, Level 3 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Fixed Income Securities | Fair Value, Inputs, Level 3 | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 0  
United States | Fixed Income Securities | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 30.00% 30.00%  
United States | Fixed Income Securities | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 70.00% 70.00%  
International Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 1,643 $ 2,106  
Percentage of Plan Assets 100.00% 100.00%  
International Pension Benefits | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 147 $ 184  
Percentage of Plan Assets 8.90% 8.70%  
International Pension Benefits | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 263 $ 573  
International Pension Benefits | Fair Value, Inputs, Level 1 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 70 135  
International Pension Benefits | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,259 1,377  
International Pension Benefits | Fair Value, Inputs, Level 2 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 77 49  
International Pension Benefits | Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 77 74  
International Pension Benefits | Fair Value, Inputs, Level 3 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 0  
International Pension Benefits | Minimum | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 1.00% 1.00%  
International Pension Benefits | Maximum | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 10.00% 10.00%  
International Pension Benefits | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 433 $ 794  
Percentage of Plan Assets 26.40% 37.70%  
International Pension Benefits | Equity securities | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 298    
International Pension Benefits | Equity securities | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   $ 513  
International Pension Benefits | Equity securities | local market equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 138 193  
International Pension Benefits | Equity securities | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (3) 53  
International Pension Benefits | Equity securities | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 35  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 36 283  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 1 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 36    
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 1 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   195  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 1 | local market equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 1 | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 53  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 1 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 35  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 397 511  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 262    
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   318  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2 | local market equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 138 193  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2 | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (3) 0  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 3 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0    
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 3 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   0  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 3 | local market equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 3 | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 3 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 0  
International Pension Benefits | Equity securities | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 20.00% 20.00%  
International Pension Benefits | Equity securities | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 50.00% 50.00%  
International Pension Benefits | Other Investments | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 95 $ 172  
Percentage of Plan Assets 5.80% 8.20%  
International Pension Benefits | Other Investments | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 264 $ 321  
Percentage of Plan Assets 16.10% 15.20%  
International Pension Benefits | Other Investments | Fair Value, Inputs, Level 1 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 0  
International Pension Benefits | Other Investments | Fair Value, Inputs, Level 1 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Other Investments | Fair Value, Inputs, Level 2 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 48 90  
International Pension Benefits | Other Investments | Fair Value, Inputs, Level 2 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 190 247  
International Pension Benefits | Other Investments | Fair Value, Inputs, Level 3 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 25 24  
International Pension Benefits | Other Investments | Fair Value, Inputs, Level 3 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 52 $ 50  
International Pension Benefits | Other Investments | Minimum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 1.00% 5.00%  
International Pension Benefits | Other Investments | Minimum | Other      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 1.00% 1.00%  
International Pension Benefits | Other Investments | Maximum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 10.00% 10.00%  
International Pension Benefits | Other Investments | Maximum | Other      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 30.00% 20.00%  
International Pension Benefits | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 704 $ 635  
Percentage of Plan Assets 42.80% 30.20%  
International Pension Benefits | Fixed Income Securities | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 494 $ 438  
International Pension Benefits | Fixed Income Securities | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 119 136  
International Pension Benefits | Fixed Income Securities | Foreign Government Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 91 61  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 157 155  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 1 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 21  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 1 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 98 134  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 1 | Foreign Government Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 59 0  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 547 480  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 2 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 494 417  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 2 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 21 2  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 2 | Foreign Government Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 32 61  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 3 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 3 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 3 | Foreign Government Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 0  
International Pension Benefits | Fixed Income Securities | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 35.00% 30.00%  
International Pension Benefits | Fixed Income Securities | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 55.00% 50.00%