v3.22.0.1
Financial Instruments (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Reported Value Measurement    
Derivatives, Fair Value [Line Items]    
Cash and Cash Equivalents, Fair Value Disclosure $ 335 $ 787
Derivative Asset 1 3
Short-term Debt, Fair Value 0 14
Derivative Liability 23 2
Fair value of long-term debt 1,594 1,278
Estimate of Fair Value Measurement    
Derivatives, Fair Value [Line Items]    
Cash and Cash Equivalents, Fair Value Disclosure 335 787
Derivative Asset 1 3
Short-term Debt, Fair Value 0 14
Derivative Liability 23 2
Fair value of long-term debt $ 1,692 $ 1,399