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Income Taxes - Deferred Tax Amounts Classified in the Balance Sheet (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]    
Noncurrent deferred tax assets $ 814 $ 838
Noncurrent deferred tax liabilities (405) (414)
Net deferred tax assets $ 409 $ 424