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Pension - Summary of Changes in Fair Value of Level 3 Assets for Non-U.S (Details) - Pension Plan - USD ($)
$ in Millions
 2 Months Ended 12 Months Ended
Dec. 31, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]        
Actual return (loss) on plan assets   $ 35    
Non-U.S. Plans        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets at beginning of year [1]   27 $ 20 $ 20
Actual return (loss) on plan assets     2  
Fair value of plan assets at end of year $ 20 [1] 28 27 [1] 20 [1]
Fair Value, Inputs, Level 3 | Non-U.S. Plans        
Defined Benefit Plan Disclosure [Line Items]        
Fair value of plan assets at beginning of year $ 5 $ 24 6  
Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List] us-gaap:FairValueInputsLevel3Member us-gaap:FairValueInputsLevel3Member    
Actual return (loss) on plan assets $ 1   2  
Purchases, sales and settlements, net   $ (1) 15  
Other   3 1  
Fair value of plan assets at end of year $ 6 $ 26 $ 24 $ 6
Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible List]   us-gaap:FairValueInputsLevel3Member us-gaap:FairValueInputsLevel3Member  
[1] 2018 "Beginning of year" is the Spin-Off date, October 29, 2018.