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Pension Benefit Plans and Other Postretirement Benefits - Changes in Plan Assets and Benefit Obligations Recognized in AOCI (Details) - Funded Plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Pension Benefit Plans. | U.S.    
Changes in plan assets and benefit obligations were recognized in accumulated other comprehensive income    
Current year actuarial (gain) loss $ (3) $ (136)
Amortization of actuarial loss (40) (62)
Settlement (13) (73)
Total (56) (271)
Change in accumulated other comprehensive loss (56) (271)
Pension Benefit Plans. | Foreign    
Changes in plan assets and benefit obligations were recognized in accumulated other comprehensive income    
Current year actuarial (gain) loss 71 (13)
Amortization of actuarial loss (9) (43)
Settlement (7) (1)
Other adjustments 3 (1)
Total 58 (58)
Translation (29) (7)
Change in accumulated other comprehensive loss 29 (65)
Postretirement Benefits Other Than Pensions | U.S.    
Changes in plan assets and benefit obligations were recognized in accumulated other comprehensive income    
Current year actuarial (gain) loss (11) (4)
Amortization of actuarial loss (8) (9)
Amortization of prior service credit 8 9
Total (11) (4)
Postretirement Benefits Other Than Pensions | Foreign    
Changes in plan assets and benefit obligations were recognized in accumulated other comprehensive income    
Current year actuarial (gain) loss (29) (6)
Total $ (29) $ (6)