Quarterly report pursuant to Section 13 or 15(d)

Debt - Summary of Debt (Details)

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Debt - Summary of Debt (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Feb. 28, 2023
Dec. 31, 2022
Debt Instrument [Line Items]      
Outstanding principal $ 3,668    
Deferred financing costs (1)   $ (2)
Total 3,679   3,801
Debt classified as current (5)   (1,376)
Total long-term debt 3,674   2,425
3.125% Exchangeable Senior Debentures due 2053      
Debt Instrument [Line Items]      
Outstanding principal 1,265    
Carrying value $ 1,251    
Interest rate (as a percent) 3.125% 3.125%  
2.75% Exchangeable Senior Debentures due 2050      
Debt Instrument [Line Items]      
Carrying value     $ 560
Interest rate (as a percent) 2.75%   2.75%
1.25% Exchangeable Senior Debentures due 2050      
Debt Instrument [Line Items]      
Outstanding principal $ 2    
Carrying value $ 2   $ 798
Interest rate (as a percent) 1.25%   1.25%
1.75% Exchangeable Senior Debentures due 2046      
Debt Instrument [Line Items]      
Carrying value     $ 15
Interest rate (as a percent) 1.75%   1.75%
Senior notes      
Debt Instrument [Line Items]      
Outstanding principal $ 600    
Carrying value 626   $ 628
Line of credit      
Debt Instrument [Line Items]      
Outstanding principal 396    
Carrying value 396   397
Wells Fargo note payable      
Debt Instrument [Line Items]      
Outstanding principal 5    
Carrying value 5   5
SPV | Margin Loan Facility      
Debt Instrument [Line Items]      
Outstanding principal 1,400    
Carrying value $ 1,400   $ 1,400