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Long-term Debt and Finance Leases - Issuance of Convertible Senior Notes (Details)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
$ / shares
Dec. 31, 2021
USD ($)
$ / shares
Dec. 31, 2018
Jan. 01, 2022
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Debt Instrument [Line Items]            
Adjustment for adoption of new accounting guidance $ 3,828 $ 3,600     $ 1,680 $ 1,658
Deferred tax liabilities (1,270) (1,090)        
Additional Paid-In Capital            
Debt Instrument [Line Items]            
Adjustment for adoption of new accounting guidance 8,457 8,531     8,517 8,501
Retained Earnings            
Debt Instrument [Line Items]            
Adjustment for adoption of new accounting guidance $ 1,408 464     $ (1,403) $ (1,616)
Cumulative Effect, Period of Adoption, Adjustment            
Debt Instrument [Line Items]            
Adjustment for adoption of new accounting guidance   (43)        
Debt discount       $ 57    
Deferred tax liabilities       14    
Cumulative Effect, Period of Adoption, Adjustment | Additional Paid-In Capital            
Debt Instrument [Line Items]            
Adjustment for adoption of new accounting guidance   (100)   (100)    
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings            
Debt Instrument [Line Items]            
Adjustment for adoption of new accounting guidance   $ 57   $ 57    
Convertible Senior Notes Due 2048            
Debt Instrument [Line Items]            
Debt discount amortization period     7 years      
Convertible Senior Notes Due 2048 | Recourse Debt            
Debt Instrument [Line Items]            
Conversion price per common share (in usd per share) | $ / shares $ 43.46 $ 44.89        
Conversion ratio 0.0230116 0.0222761        
Carrying amount of equity component $ 570 $ 512