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Employee Benefit Obligations - AOCI, Obligations exceeding assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Amounts recognized in accumulated other comprehensive (earnings) loss    
Decrease in net actuarial losses from prior period $ 58  
Unfunded Plan    
Benefit plans with an accumulated benefit obligation in excess of plan assets    
Fair value of plan assets 0 $ 0
Defined Benefit Pension Plans    
Amounts recognized in accumulated other comprehensive (earnings) loss    
Net actuarial (loss) gain (265) (207)
Net prior service (cost) credit (29) (36)
Tax effect and currency exchange rates 67 74
Accumulated other comprehensive (earnings) loss (227) (169)
Benefit plans with an accumulated benefit obligation in excess of plan assets    
Projected benefit obligation 1,852 2,615
Accumulated benefit obligation 1,768 2,478
Fair value of plan assets 1,428 2,033
Defined Benefit Pension Plans | United States    
Amounts recognized in accumulated other comprehensive (earnings) loss    
Net actuarial (loss) gain (208) (290)
Net prior service (cost) credit 14 15
Tax effect and currency exchange rates 58 80
Accumulated other comprehensive (earnings) loss (136) (195)
Benefit plans with an accumulated benefit obligation in excess of plan assets    
Projected benefit obligation 1,671 2,304
Accumulated benefit obligation 1,590 2,171
Fair value of plan assets 1,417 1,960
Defined Benefit Pension Plans | Non U.S.    
Amounts recognized in accumulated other comprehensive (earnings) loss    
Net actuarial (loss) gain (57) 83
Net prior service (cost) credit (43) (51)
Tax effect and currency exchange rates 9 (6)
Accumulated other comprehensive (earnings) loss (91) 26
Benefit plans with an accumulated benefit obligation in excess of plan assets    
Projected benefit obligation 181 311
Accumulated benefit obligation 178 307
Fair value of plan assets $ 11 $ 73