Summary of Significant Accounting Policies - Deferred Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Contract With Customer, Liability [Roll Forward]
Deferred lease revenues – current	$ 155	$ 149
Customer Loyalty
Contract With Customer, Liability [Roll Forward]
Beginning balance	50	67
Revenue deferred	59	61
Revenue recognized	(54)	(78)
Ending balance	55	50
Deferred lease revenues – current	22	27
Contract with customer, liability, noncurrent	$ 33	$ 23
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]: 2026-01-01 | Minimum
Contract With Customer, Liability [Roll Forward]
Revenue recognition period	2 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01 | Maximum
Contract With Customer, Liability [Roll Forward]
Revenue recognition period	3 years