Annual report pursuant to Section 13 and 15(d)

Assets and Liabilities Measured at Fair Value - Schedule of Assets and Liabilities (Details)

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Assets and Liabilities Measured at Fair Value - Schedule of Assets and Liabilities (Details) - Recurring - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents $ 118 $ 1,368
Indemnification obligation 324 345
Exchangeable senior debentures 1,428 1,472
Quoted prices in active markets for identical assets (Level 1)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Cash equivalents 118 1,368
Significant other observable inputs (Level 2)    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Indemnification obligation 324 345
Exchangeable senior debentures $ 1,428 $ 1,472