Revenue - Total Other Revenues (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Disaggregation of Revenue [Line Items]
Total other revenues	$ 8,422.0	$ 6,949.0	$ 24,104.0	$ 20,621.0
Other
Disaggregation of Revenue [Line Items]
Total other revenues	621.0	594.0	1,872.0	1,743.0
Loyalty program
Disaggregation of Revenue [Line Items]
Total other revenues	563.0	557.0	1,698.0	1,638.0
Other
Disaggregation of Revenue [Line Items]
Total other revenues	$ 58.0	$ 37.0	$ 174.0	$ 105.0

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, 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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