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Pension - Summary of Fair Values of Non-U.S. Pension Plans Assets by Asset Category (Details) - Pension Plan - Non-U.S. Plans - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Oct. 30, 2018
Dec. 31, 2017
 [1]
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets $ 28 $ 27 [1] $ 20 [1]   $ 20
Equity          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 1 1      
Government Bonds          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 1 1      
Corporate Bonds          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets   1      
Insurance Contracts          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 10 8      
Other          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 16 16      
Fair Value, Inputs, Level 1          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 1 1      
Fair Value, Inputs, Level 1 | Equity          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 1 1      
Fair Value, Inputs, Level 2          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 1 2      
Fair Value, Inputs, Level 2 | Government Bonds          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 1 1      
Fair Value, Inputs, Level 2 | Corporate Bonds          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets   1      
Fair Value, Inputs, Level 3          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 26 24 $ 6 $ 5  
Fair Value, Inputs, Level 3 | Insurance Contracts          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets 10 8      
Fair Value, Inputs, Level 3 | Other          
Defined Benefit Plan Disclosure [Line Items]          
Fair value of pension plan assets $ 16 $ 16      
[1] 2018 "Beginning of year" is the Spin-Off date, October 29, 2018.