Financial Derivative Instruments - Offsetting of Derivative Assets (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Offsetting Assets [Line Items]
Gross amounts of recognized assets	$ 234	$ 223
Fuel derivative contracts \| Prepaid expenses and other current assets
Offsetting Assets [Line Items]
Gross amounts of recognized assets	95	86
Gross amounts offset in the Balance Sheet	(27)	(15)
Net amounts of assets presented in the Balance Sheet	68	71
Fuel derivative contracts \| Other assets
Offsetting Assets [Line Items]
Gross amounts of recognized assets	139	137
Gross amounts offset in the Balance Sheet	(17)	(35)
Net amounts of assets presented in the Balance Sheet	$ 122	$ 102

Fair value, after effect of master netting arrangement, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset. Includes derivative subject to master netting arrangement not elected or qualified to offset. Excludes derivative not subject to master netting arrangement or similar agreement.

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- Definition

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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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.

+ References

No definition available.

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