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 (Details)

v3.24.0.1
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 (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 45,482 $ 43,916  
Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 22,479 23,246  
Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 13,022 10,978  
Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 80 77 $ 88
Level 3 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0 14
Level 3 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 80 77 $ 74
United States      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 43,589 $ 42,273  
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 $ 1,018 $ 1,235  
Percentage of Plan Assets 2.30% 2.90%  
United States | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 10,164 $ 13,617  
Percentage of Plan Assets 23.30% 32.20%  
United States | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 5,732 $ 6,599  
United States | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 335 698  
United States | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 970 1,597  
United States | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 62 1,168  
United States | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 3,065 3,555  
United States | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 25,673 $ 21,973  
Percentage of Plan Assets 58.90% 52.00%  
United States | U.S. Government Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 18,024 $ 15,165  
United States | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 7,041 6,129  
United States | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 602 670  
United States | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6 9  
United States | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 12,722 12,790  
United States | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 3,959 $ 4,364  
Percentage of Plan Assets 9.10% 10.30%  
United States | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 5,071 $ 5,012  
Percentage of Plan Assets 11.60% 11.90%  
United States | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 948 $ 829  
Percentage of Plan Assets 2.20% 2.00%  
United States | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 2,575 $ 2,415  
Percentage of Plan Assets 5.90% 5.70%  
United States | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 169 $ 170  
Percentage of Plan Assets 0.40% 0.40%  
United States | Derivatives and Other Instruments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ (5,988) $ (7,342)  
United States | Equity Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ (136) $ (87)  
Percentage of Plan Assets (0.30%) (0.20%)  
United States | Interest Rate Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ (5,877) $ (7,280)  
Percentage of Plan Assets (13.50%) (17.20%)  
United States | Other Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 25 $ 25  
Percentage of Plan Assets 0.10% 0.00%  
United States | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 22,070 $ 22,983  
United States | Level 1 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 894 870  
United States | Level 1 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 3,448 7,217  
United States | Level 1 | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,457 2,517  
United States | Level 1 | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 335 698  
United States | Level 1 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 733 1,171  
United States | Level 1 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 62 1,168  
United States | Level 1 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 861 1,663  
United States | Level 1 | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 17,299 14,640  
United States | Level 1 | U.S. Government Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 17,236 14,633  
United States | Level 1 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 62 7  
United States | Level 1 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1 0  
United States | Level 1 | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 1 | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 421 267  
United States | Level 1 | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 28 0  
United States | Level 1 | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 1 | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 1 | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 393 267  
United States | Level 1 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 1 | Derivatives and Other Instruments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 8 (11)  
United States | Level 1 | Equity Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 29 (6)  
United States | Level 1 | Interest Rate Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (20) (4)  
United States | Level 1 | Other Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (1) (1)  
United States | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 11,658 9,719  
United States | Level 2 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 124 365  
United States | Level 2 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6,716 6,400  
United States | Level 2 | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 4,275 4,082  
United States | Level 2 | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 2 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 237 426  
United States | Level 2 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 2 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,204 1,892  
United States | Level 2 | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 8,374 7,333  
United States | Level 2 | U.S. Government Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 788 532  
United States | Level 2 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6,979 6,122  
United States | Level 2 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 601 670  
United States | Level 2 | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6 9  
United States | Level 2 | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,440 2,952  
United States | Level 2 | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2,194 2,713  
United States | Level 2 | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 2 | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 2 | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 77 69  
United States | Level 2 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 169 170  
United States | Level 2 | Derivatives and Other Instruments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (5,996) (7,331)  
United States | Level 2 | Equity Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (165) (81)  
United States | Level 2 | Interest Rate Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (5,857) (7,276)  
United States | Level 2 | Other Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 26 26  
United States | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | U.S. Large Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | U.S. Small Cap      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | U.S. Government Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Municipal Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Derivatives and Other Instruments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Equity Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Interest Rate Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Other Risk      
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]      
Percentage Target Allocation 1.00% 1.00%  
United States | Minimum | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 15.00% 20.00%  
United States | Minimum | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 30.00% 30.00%  
United States | Minimum | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 3.00% 3.00%  
United States | Minimum | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 3.00% 3.00%  
United States | Minimum | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 2.00% 1.00%  
United States | Minimum | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 3.00% 3.00%  
United States | Minimum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 0.00% 0.00%  
United States | Maximum | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 7.00% 7.00%  
United States | Maximum | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 45.00% 45.00%  
United States | Maximum | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 70.00% 70.00%  
United States | Maximum | Hedge Funds      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 13.00% 13.00%  
United States | Maximum | Private Equity      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 15.00% 15.00%  
United States | Maximum | Private Debt      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 15.00% 15.00%  
United States | Maximum | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 15.00% 15.00%  
United States | Maximum | Structured Products      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 5.00% 5.00%  
International Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 1,893 $ 1,643  
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 $ 71 $ 147  
Percentage of Plan Assets 3.80% 8.90%  
International Pension Benefits | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 109 $ 433  
Percentage of Plan Assets 5.80% 26.40%  
International Pension Benefits | Local Markets Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 0 $ 138  
International Pension Benefits | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 89 (3)  
International Pension Benefits | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 20    
International Pension Benefits | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   298  
International Pension Benefits | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 1,392 $ 704  
Percentage of Plan Assets 73.50% 42.80%  
International Pension Benefits | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 424 $ 494  
International Pension Benefits | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 141 119  
International Pension Benefits | Local Government Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 827 91  
International Pension Benefits | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 66 $ 95  
Percentage of Plan Assets 3.50% 5.80%  
International Pension Benefits | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 255 $ 264  
Percentage of Plan Assets 13.40% 16.10%  
International Pension Benefits | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 409 $ 263  
International Pension Benefits | Level 1 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 77 70  
International Pension Benefits | Level 1 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 20 36  
International Pension Benefits | Level 1 | Local Markets Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 1 | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 1 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 1 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 20    
International Pension Benefits | Level 1 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   36  
International Pension Benefits | Level 1 | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 312 157  
International Pension Benefits | Level 1 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 1 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 137 98  
International Pension Benefits | Level 1 | Local Government Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 175 59  
International Pension Benefits | Level 1 | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 1 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,364 1,259  
International Pension Benefits | Level 2 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (6) 77  
International Pension Benefits | Level 2 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 89 397  
International Pension Benefits | Level 2 | Local Markets Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 138  
International Pension Benefits | Level 2 | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 89 (3)  
International Pension Benefits | Level 2 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 2 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0    
International Pension Benefits | Level 2 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   262  
International Pension Benefits | Level 2 | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,080 547  
International Pension Benefits | Level 2 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 424 494  
International Pension Benefits | Level 2 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 4 21  
International Pension Benefits | Level 2 | Local Government Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 652 32  
International Pension Benefits | Level 2 | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 18 48  
International Pension Benefits | Level 2 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 183 190  
International Pension Benefits | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 80 77  
International Pension Benefits | Level 3 | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | Local Markets Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | U.S. Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | Emerging Markets      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | Global Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0    
International Pension Benefits | Level 3 | International Equity      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   0  
International Pension Benefits | Level 3 | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | Corporate Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | Global Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | Local Government Bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 25 25  
International Pension Benefits | Level 3 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 55 $ 52  
International Pension Benefits | Minimum | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 1.00% 1.00%  
International Pension Benefits | Minimum | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 1.00% 20.00%  
International Pension Benefits | Minimum | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 50.00% 35.00%  
International Pension Benefits | Minimum | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 1.00% 1.00%  
International Pension Benefits | Minimum | Other      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 10.00% 1.00%  
International Pension Benefits | Maximum | Cash and Cash Equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 10.00% 10.00%  
International Pension Benefits | Maximum | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 10.00% 50.00%  
International Pension Benefits | Maximum | Fixed Income Securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 75.00% 55.00%  
International Pension Benefits | Maximum | Real Estate      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 10.00% 10.00%  
International Pension Benefits | Maximum | Other      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 35.00% 30.00%