v3.22.4
Pensions And Other Postretirement Benefits - Assets and Fair Value Measurements (Details) - Pension Plan - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling $ 33,086 $ 44,230  
Plan assets measured at net asset value 12,551 15,323  
Other plan assets (liabilities), net (736) 368  
Net plan assets 44,901 59,921 $ 61,077
U.S. | Common and preferred stocks      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 1,225 2,554  
U.S. | Government and agency debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 9,606 14,924  
U.S. | Corporate and other debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 21,816 26,064  
U.S. | Other investments, net      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 439 688  
U.S. | Investment funds      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets measured at net asset value 5,124 7,304  
U.S. | Private equity and debt investments      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets measured at net asset value 3,936 4,415  
U.S. | Real estate investments      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets measured at net asset value 3,491 3,604  
U.S. | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 1,347 2,975  
U.S. | Level 1 | Common and preferred stocks      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 1,222 2,554  
U.S. | Level 1 | Government and agency debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
U.S. | Level 1 | Corporate and other debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
U.S. | Level 1 | Other investments, net      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 125 421  
U.S. | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 31,482 41,009  
U.S. | Level 2 | Common and preferred stocks      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
U.S. | Level 2 | Government and agency debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 9,606 14,924  
U.S. | Level 2 | Corporate and other debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 21,816 26,064  
U.S. | Level 2 | Other investments, net      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 60 21  
U.S. | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 257 246  
U.S. | Level 3 | Common and preferred stocks      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 3 0  
U.S. | Level 3 | Government and agency debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
U.S. | Level 3 | Corporate and other debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
U.S. | Level 3 | Other investments, net      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 254 246  
Non-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 4,937 6,939  
Plan assets measured at net asset value 4,485 6,545  
Other plan assets (liabilities), net 108 37  
Net plan assets 9,530 13,521 $ 13,846
Non-U.S. | Common and preferred stocks      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 143 372  
Non-U.S. | Government and agency debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 2,185 3,084  
Non-U.S. | Corporate and other debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 2,571 3,381  
Non-U.S. | Other investments, net      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 38 102  
Non-U.S. | Investment funds      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets measured at net asset value 3,124 4,963  
Non-U.S. | Private equity and debt investments      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets measured at net asset value 483 593  
Non-U.S. | Real estate investments      
Defined Benefit Plan Disclosure [Line Items]      
Plan assets measured at net asset value 878 989  
Non-U.S. | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 167 424  
Non-U.S. | Level 1 | Common and preferred stocks      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 143 372  
Non-U.S. | Level 1 | Government and agency debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
Non-U.S. | Level 1 | Corporate and other debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
Non-U.S. | Level 1 | Other investments, net      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 24 52  
Non-U.S. | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 4,685 6,397  
Non-U.S. | Level 2 | Common and preferred stocks      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
Non-U.S. | Level 2 | Government and agency debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 2,185 3,084  
Non-U.S. | Level 2 | Corporate and other debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 2,570 3,379  
Non-U.S. | Level 2 | Other investments, net      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling (70) (66)  
Non-U.S. | Level 2 | Canadian repurchase agreements      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 150 271  
Non-U.S. | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 85 118  
Non-U.S. | Level 3 | Common and preferred stocks      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
Non-U.S. | Level 3 | Government and agency debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 0 0  
Non-U.S. | Level 3 | Corporate and other debt securities      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling 1 2  
Non-U.S. | Level 3 | Other investments, net      
Defined Benefit Plan Disclosure [Line Items]      
Net plan assets subject to leveling $ 84 $ 116