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)

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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, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 58,175 $ 54,881  
Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 44,596 28,655  
Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 3,845 18,183  
Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 88 65 $ 12
Fair Value, Inputs, Level 3 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 14 3 0
Fair Value, Inputs, Level 3 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 74 62 $ 12
United States      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 56,069 $ 53,046  
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 $ 2,671 $ 1,593  
Percentage of Plan Assets 4.80% 3.00%  
United States | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 44,023 $ 28,212  
United States | Fair Value, Inputs, Level 1 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,564 1,510  
United States | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,468 16,922  
United States | Fair Value, Inputs, Level 2 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 107 83  
United States | Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 14 3  
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% 5.00%  
United States | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 22,654 $ 19,045  
Percentage of Plan Assets 40.40% 35.90%  
United States | Equity securities | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 12,840 $ 8,294  
United States | Equity securities | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 484 370  
United States | Equity securities | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,077 2,106  
United States | Equity securities | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 3,054 3,940  
United States | Equity securities | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 4,199 4,335  
United States | Equity securities | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 15,788 11,812  
United States | Equity securities | Fair Value, Inputs, Level 1 | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 8,948 4,272  
United States | Equity securities | Fair Value, Inputs, Level 1 | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 484 370  
United States | Equity securities | Fair Value, Inputs, Level 1 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,483 1,503  
United States | Equity securities | Fair Value, Inputs, Level 1 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,901 3,624  
United States | Equity securities | Fair Value, Inputs, Level 1 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,972 2,043  
United States | Equity securities | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6,866 7,233  
United States | Equity securities | Fair Value, Inputs, Level 2 | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 3,892 4,022  
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 594 603  
United States | Equity securities | Fair Value, Inputs, Level 2 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 153 316  
United States | Equity securities | Fair Value, Inputs, Level 2 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,227 2,292  
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 | International Equity      
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% 25.00%  
United States | Equity securities | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 45.00% 55.00%  
United States | Other Investments | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 4,121 $ 3,518  
Percentage of Plan Assets 7.30% 6.60%  
United States | Other Investments | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 4,822 $ 3,424  
Percentage of Plan Assets 8.60% 6.50%  
United States | Other Investments | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 763 $ 695  
Percentage of Plan Assets 1.40% 1.30%  
United States | Other Investments | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 2,285 $ 1,986  
Percentage of Plan Assets 4.10% 3.70%  
United States | Other Investments | Risk Parity Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 295 $ 264  
Percentage of Plan Assets 0.50% 0.50%  
United States | Other Investments | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 177 $ 161  
Percentage of Plan Assets 0.30% 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 313 244  
United States | Other Investments | Fair Value, Inputs, Level 1 | Risk Parity Funds      
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 0 0  
United States | Other Investments | Fair Value, Inputs, Level 2 | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,303 1,652  
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 106 82  
United States | Other Investments | Fair Value, Inputs, Level 2 | Risk Parity Funds      
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 177 161  
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 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 5.00% 5.00%  
United States | Other Investments | Minimum | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 1.00% 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 1.00% 1.00%  
United States | Other Investments | Minimum | Risk Parity Funds      
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 1.00% 1.00%  
United States | Other Investments | Maximum | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 10.00% 15.00%  
United States | Other Investments | Maximum | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 10.00% 10.00%  
United States | Other Investments | Maximum | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 10.00% 10.00%  
United States | Other Investments | Maximum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 10.00% 10.00%  
United States | Other Investments | Maximum | Risk Parity Funds      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 10.00% 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 $ 18,281 $ 22,360  
Percentage of Plan Assets 32.60% 42.20%  
United States | Fixed Income Securities | U.S. Government Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 12,083 $ 16,145  
United States | Fixed Income Securities | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6,156 6,146  
United States | Fixed Income Securities | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 23 42  
United States | Fixed Income Securities | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 19 27  
United States | Fixed Income Securities | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 25,358 14,646  
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 25,358 14,646  
United States | Fixed Income Securities | Fair Value, Inputs, Level 1 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 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 (7,091) 7,711  
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 (13,275) 1,499  
United States | Fixed Income Securities | Fair Value, Inputs, Level 2 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6,142 6,143  
United States | Fixed Income Securities | Fair Value, Inputs, Level 2 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 23 42  
United States | Fixed Income Securities | Fair Value, Inputs, Level 2 | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 19 27  
United States | Fixed Income Securities | Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 14 3  
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 14 3  
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% 35.00%  
United States | Fixed Income Securities | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 70.00% 55.00%  
International Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 2,106 $ 1,835  
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 $ 184 $ 84  
Percentage of Plan Assets 8.70% 4.60%  
International Pension Benefits | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 573 $ 443  
International Pension Benefits | Fair Value, Inputs, Level 1 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 135 45  
International Pension Benefits | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,377 1,261  
International Pension Benefits | Fair Value, Inputs, Level 2 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 49 39  
International Pension Benefits | Fair Value, Inputs, Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 74 62  
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 $ 794 $ 862  
Percentage of Plan Assets 37.70% 47.00%  
International Pension Benefits | Equity securities | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 35 $ 55  
International Pension Benefits | Equity securities | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 513 534  
International Pension Benefits | Equity securities | local market equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 193 214  
International Pension Benefits | Equity securities | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 53 59  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 283 251  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 1 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 35 41  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 1 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 195 210  
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 53 0  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 511 611  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 14  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 318 324  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2 | local market equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 193 214  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 2 | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 59  
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 0  
International Pension Benefits | Equity securities | Fair Value, Inputs, Level 3 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 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 | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 20.00% 25.00%  
International Pension Benefits | Equity securities | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 50.00% 55.00%  
International Pension Benefits | Other Investments | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 172 $ 154  
Percentage of Plan Assets 8.20% 8.30%  
International Pension Benefits | Other Investments | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 321 $ 293  
Percentage of Plan Assets 15.20% 16.00%  
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 90 80  
International Pension Benefits | Other Investments | Fair Value, Inputs, Level 2 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 247 236  
International Pension Benefits | Other Investments | Fair Value, Inputs, Level 3 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 24 21  
International Pension Benefits | Other Investments | Fair Value, Inputs, Level 3 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 50 $ 41  
International Pension Benefits | Other Investments | Minimum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 5.00% 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 20.00% 20.00%  
International Pension Benefits | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 635 $ 442  
Percentage of Plan Assets 30.20% 24.10%  
International Pension Benefits | Fixed Income Securities | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 438 $ 215  
International Pension Benefits | Fixed Income Securities | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 136 125  
International Pension Benefits | Fixed Income Securities | Foreign Government Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 61 102  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 155 147  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 1 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 21 22  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 1 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 134 125  
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 0 0  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 480 295  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 2 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 417 193  
International Pension Benefits | Fixed Income Securities | Fair Value, Inputs, Level 2 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2 0  
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 61 102  
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 30.00% 20.00%  
International Pension Benefits | Fixed Income Securities | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets target allocation, Maximum 50.00% 40.00%