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- Definition

Amount, before accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Revenue - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Capitalized Contract Cost [Line Items]
Passenger ticket revenues	$ 5,591	$ 5,139	$ 14,876	$ 13,676
Contract liability	3,000		3,000		$ 3,100
Contract asset	241		241		187
Commissions, transportation and other
Capitalized Contract Cost [Line Items]
Capitalized contract costs	256		256		$ 245
Port Costs
Capitalized Contract Cost [Line Items]
Passenger ticket revenues	$ 420	$ 371	$ 1,100	$ 965
Minimum
Capitalized Contract Cost [Line Items]
Duration of cruises			3 days
Maximum
Capitalized Contract Cost [Line Items]
Duration of cruises			14 days