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Pension - Summary of Net Periodic Benefit (Income) Cost Other Than The Service Cost Included in Other Expense, Net (Details) - Pension Plan - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
 [1]
U.S. Plans      
Defined Benefit Plan Disclosure [Line Items]      
Actuarial losses (gains) $ 38 $ 51 $ 12
Excess return on plan assets [2] (17) (54)  
Actuarial gains recognized during the year (2)    
Total recognized in other comprehensive loss (income) 19 (3) 12
Total recognized in net periodic benefit cost and other comprehensive loss (income) 22 (1) 12
Non-U.S. Plans      
Defined Benefit Plan Disclosure [Line Items]      
Actuarial losses (gains) 6 26 (3)
Excess return on plan assets [2]   (1)  
Actuarial gains recognized during the year (6) (17)  
Other 1    
Total recognized in other comprehensive loss (income) 1 8 (3)
Total recognized in net periodic benefit cost and other comprehensive loss (income) $ 14 $ 32 $ (2)
[1] 2018 begins at the Spin-Off date, October 29, 2018. Activity before the Spin-Off date was recognized under the Shared Plans.
[2] Represents actual return on plan assets in excess of the expected return.