Summary of Significant Accounting Policies - Deferred Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Contract With Customer, Liability [Roll Forward]
Deferred lease revenues – current	$ 149	$ 168
Customer Loyalty
Contract With Customer, Liability [Roll Forward]
Beginning balance	67	61
Revenue deferred	61	58
Revenue recognized	(78)
Revenue recognized		(52)
Ending balance	50	67
Deferred lease revenues – current	27	20
Contract with customer, liability, noncurrent	$ 23	$ 47
Customer Loyalty | Minimum
Disaggregation of Revenue [Line Items]
Term	12 months
Customer Loyalty | Maximum
Disaggregation of Revenue [Line Items]
Term	5 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Minimum
Contract With Customer, Liability [Roll Forward]
Revenue recognition period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01 | Maximum
Contract With Customer, Liability [Roll Forward]
Revenue recognition period	3 years