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)

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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 (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 43,396 $ 45,482  
Cash held as collateral 2,700    
Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 22,250 22,479  
Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 10,941 13,022  
Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 62 80 $ 77
United States      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 41,618 $ 43,589  
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 $ 5,716 $ 1,018  
Percentage of Plan Assets 13.70% 2.30%  
United States | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 6,979 $ 10,164  
Percentage of Plan Assets 16.80% 23.30%  
United States | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 19,643 $ 25,673  
Percentage of Plan Assets 47.20% 58.90%  
United States | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 11,216 $ 12,722  
United States | Hedge funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 2,034 $ 3,959  
Percentage of Plan Assets 4.90% 9.10%  
United States | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 2,674 $ 2,575  
Percentage of Plan Assets 6.40% 5.90%  
United States | Private equity, private debt, and other investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 6,508 $ 6,188  
Percentage of Plan Assets 15.60% 14.20%  
United States | Derivatives and Other Instruments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ (1,936) $ (5,988)  
United States | Equity risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ (392) $ (136)  
Percentage of Plan Assets (0.90%) (0.30%)  
United States | Interest rate risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ (1,619) $ (5,877)  
Percentage of Plan Assets (3.90%) (13.50%)  
United States | Other Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 75 $ 25  
Percentage of Plan Assets 0.20% 0.10%  
United States | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 21,857 $ 22,070  
United States | Level 1 | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 5,450 894  
United States | Level 1 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 3,270 3,448  
United States | Level 1 | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 13,375 17,299  
United States | Level 1 | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 301 421  
United States | Level 1 | Hedge funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 28  
United States | Level 1 | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 301 393  
United States | Level 1 | Private equity, private debt, and other investments      
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 (539) 8  
United States | Level 1 | Equity risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (99) 29  
United States | Level 1 | Interest rate risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (442) (20)  
United States | Level 1 | Other Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 2 (1)  
United States | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 9,634 11,658  
United States | Level 2 | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 266 124  
United States | Level 2 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 3,709 6,716  
United States | Level 2 | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 6,247 8,374  
United States | Level 2 | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 810 2,440  
United States | Level 2 | Hedge funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 538 2,194  
United States | Level 2 | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 77 77  
United States | Level 2 | Private equity, private debt, and other investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 195 169  
United States | Level 2 | Derivatives and Other Instruments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (1,398) (5,996)  
United States | Level 2 | Equity risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (294) (165)  
United States | Level 2 | Interest rate risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets (1,177) (5,857)  
United States | Level 2 | Other Risk      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 73 26  
United States | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 21 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 | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 21 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 | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
United States | Level 3 | Private equity, private debt, and other investments      
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% 15.00%  
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 | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 3.00% 3.00%  
United States | Minimum | Private equity, private debt, and other investments      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 5.00% 5.00%  
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 73.00% 70.00%  
United States | Maximum | Hedge funds      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 13.00% 13.00%  
United States | Maximum | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 15.00% 15.00%  
United States | Maximum | Private equity, private debt, and other investments      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 29.00% 35.00%  
International Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 1,778 $ 1,893  
International Pension Benefits | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 127 $ 71  
Percentage of Plan Assets 7.10% 3.80%  
International Pension Benefits | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 165 $ 109  
Percentage of Plan Assets 9.30% 5.80%  
International Pension Benefits | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 1,202 $ 1,392  
Percentage of Plan Assets 67.60% 73.50%  
International Pension Benefits | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   $ 1,893  
International Pension Benefits | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 62 $ 66  
Percentage of Plan Assets 3.50% 3.50%  
International Pension Benefits | Private equity, private debt, and other investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 222 $ 255  
Percentage of Plan Assets 12.50% 13.40%  
International Pension Benefits | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 1,778    
Percentage of Plan Assets 100.00% 100.00%  
International Pension Benefits | Level 1 | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 127 $ 77  
International Pension Benefits | Level 1 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 23 20  
International Pension Benefits | Level 1 | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 243 312  
International Pension Benefits | Level 1 | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   409  
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 | Private equity, private debt, and other investments      
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 393    
International Pension Benefits | Level 2 | Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 (6)  
International Pension Benefits | Level 2 | Equity securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 142 89  
International Pension Benefits | Level 2 | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 959 1,080  
International Pension Benefits | Level 2 | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   1,364  
International Pension Benefits | Level 2 | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 17 18  
International Pension Benefits | Level 2 | Private equity, private debt, and other investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 189 183  
International Pension Benefits | Level 2 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 1,307    
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 | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 0 0  
International Pension Benefits | Level 3 | Other Investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets   80  
International Pension Benefits | Level 3 | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 23 25  
International Pension Benefits | Level 3 | Private equity, private debt, and other investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 18 $ 55  
International Pension Benefits | Level 3 | Other      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 41    
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% 1.00%  
International Pension Benefits | Minimum | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 50.00% 50.00%  
International Pension Benefits | Minimum | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 1.00% 1.00%  
International Pension Benefits | Minimum | Private equity, private debt, and other investments      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 10.00% 10.00%  
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% 10.00%  
International Pension Benefits | Maximum | Fixed income securities      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 75.00% 75.00%  
International Pension Benefits | Maximum | Real estate      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 10.00% 10.00%  
International Pension Benefits | Maximum | Private equity, private debt, and other investments      
Defined Benefit Plan Disclosure [Line Items]      
Percentage Target Allocation 35.00% 35.00%