Annual report pursuant to Section 13 and 15(d)

Assets and Liabilities Measured at Fair Value (Details)

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Assets and Liabilities Measured at Fair Value (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 18, 2020
Nov. 23, 2020
Aug. 27, 2020
1.75% Exchangeable Senior Debentures due 2046          
Fair Value Measurement Inputs and Valuation Techniques [Line Items]          
Interest rate (as a percent) 1.75%        
1.25% Exchangeable Senior Debentures due 2050          
Fair Value Measurement Inputs and Valuation Techniques [Line Items]          
Interest rate (as a percent) 1.25%     1.25%  
2.75% Exchangeable Senior Debentures due 2050          
Fair Value Measurement Inputs and Valuation Techniques [Line Items]          
Interest rate (as a percent) 2.75%       2.75%
Exchangeable senior debentures          
Fair Value Measurement Inputs and Valuation Techniques [Line Items]          
Change in fair value $ (2) $ 9      
Cumulative change $ 7        
Exchangeable senior debentures | 1.75% Exchangeable Senior Debentures due 2046 | Indemnification obligation          
Fair Value Measurement Inputs and Valuation Techniques [Line Items]          
Indemnity obligation recorded     $ 336    
Exchangeable senior debentures | 1.75% Exchangeable Senior Debentures due 2046 | Indemnification obligation | LI LLC          
Fair Value Measurement Inputs and Valuation Techniques [Line Items]          
Interest rate (as a percent) 1.75%