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Postretirement Benefit Plans - Schedule of Change in AOCI (Details)
$ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
Defined benefit plan amounts recognized in other comprehensive income net actuarial loss portion roll forward  
AOCI balance, net actuarial loss portion (net of taxes), beginning of period $ 207
Adjustments, net actuarial loss (73)
Recognized within net income, net actuarial loss (13)
Net actuarial losses of defined benefit plans adjustment, tax effect (23)
Total change to AOCI, net actuarial loss (63)
AOCI balance, net actuarial loss portion (net of taxes), period end 144
Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Prior Service Costs Portion Roll Forward  
AOCI balance, net prior service cost (net of taxes), beginning of period 0
Adjustments, prior service cost 0
Recognized within net income, prior service cost (1)
Tax effect, prior service cost 0
Total change to AOCI, prior service credit (1)
AOCI balance, net prior service cost (net of taxes), period end (1)
U.S. | Defined Benefit  
Defined benefit plan amounts recognized in other comprehensive income net actuarial loss portion roll forward  
AOCI balance, net actuarial loss portion (net of taxes), beginning of period 62
Adjustments, net actuarial loss (1)
Recognized within net income, net actuarial loss (5)
Net actuarial losses of defined benefit plans adjustment, tax effect (1)
Total change to AOCI, net actuarial loss (5)
AOCI balance, net actuarial loss portion (net of taxes), period end 57
U.S. | Retiree Health Care  
Defined benefit plan amounts recognized in other comprehensive income net actuarial loss portion roll forward  
AOCI balance, net actuarial loss portion (net of taxes), beginning of period (24)
Adjustments, net actuarial loss (5)
Recognized within net income, net actuarial loss 3
Net actuarial losses of defined benefit plans adjustment, tax effect 0
Total change to AOCI, net actuarial loss (2)
AOCI balance, net actuarial loss portion (net of taxes), period end (26)
Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Prior Service Costs Portion Roll Forward  
AOCI balance, net prior service cost (net of taxes), beginning of period 0
Adjustments, prior service cost 0
Recognized within net income, prior service cost 0
Tax effect, prior service cost 0
Total change to AOCI, prior service credit 0
AOCI balance, net prior service cost (net of taxes), period end 0
Non-U.S. | Defined Benefit  
Defined benefit plan amounts recognized in other comprehensive income net actuarial loss portion roll forward  
AOCI balance, net actuarial loss portion (net of taxes), beginning of period 169
Adjustments, net actuarial loss (67)
Recognized within net income, net actuarial loss (11)
Net actuarial losses of defined benefit plans adjustment, tax effect (22)
Total change to AOCI, net actuarial loss (56)
AOCI balance, net actuarial loss portion (net of taxes), period end 113
Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Prior Service Costs Portion Roll Forward  
AOCI balance, net prior service cost (net of taxes), beginning of period 0
Adjustments, prior service cost 0
Recognized within net income, prior service cost (1)
Tax effect, prior service cost 0
Total change to AOCI, prior service credit (1)
AOCI balance, net prior service cost (net of taxes), period end $ (1)