Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Narrative) (Details)

v3.24.0.1
Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Accrued expenses and other current liabilities $ 299,000,000 $ 264,000,000
Accrued expenses and other current liabilities 172,000,000 189,000,000
Cumulative-effect benefit to retained earnings 488,000,000 318,000,000
Deferred loyalty program revenue    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Loyalty program liability 117,000,000 118,000,000
Accrued expenses and other current liabilities   74,000,000
Accrued expenses and other current liabilities $ 42,000,000 $ 44,000,000
Maximum    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Historical collection attrition rate, period 10 years