Annual report pursuant to Section 13 and 15(d)

Supplemental Disclosures to Consolidated Statement of Cash Flows - Cash, Cash Equivalents and Restricted Cash (Details)

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Supplemental Disclosures to Consolidated Statement of Cash Flows - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Summary of Significant Accounting Policies        
Cash and cash equivalents $ 587 $ 806    
Restricted cash included in other current assets $ 9 $ 8    
Restricted Cash and Cash Equivalents, Asset, Statement of Financial Position [Extensible List] Other Assets, Current Other Assets, Current    
Total cash, cash equivalents and restricted cash in the condensed consolidated statement of cash flows $ 596 $ 814 $ 681 $ 660