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Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year, Increase (Decrease)

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Lessee, Operating Lease, Liability, To Be Paid, Year Four, Increase (Decrease)

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Lessee, Operating Lease, Liability, To Be Paid, Year One, Increase (Decrease)

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Lessee, Operating Lease, Liability, To Be Paid, Year Three, Increase (Decrease)

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Lessee, Operating Lease, Liability, To Be Paid, Year Two, Increase (Decrease)

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- Definition

Other Commitment, Number Of Aircrafts To Be Purchased

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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Amount of increase (decrease) in obligation for operating lease.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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- Definition

Amount of commitment classified as other to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

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Amount of commitment classified as other to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of commitment classified as other to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of commitment classified as other to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of commitment classified as other to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of commitment classified as other to be paid in remainder of current fiscal year.

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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

The cash outflow for acquisition of or capital improvements to properties held for investment (operating, managed, leased) or for use.

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Amount of increase (decrease) of physical assets used in the normal conduct of business and not intended for resale, from reclassification, impairment, donation, or changes classified as other. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Commitments and contingencies - Narrative (Details) $ in Millions			3 Months Ended	40 Months Ended
	Sep. 28, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2021 USD ($) aircraft
Other Commitments [Line Items]
Decrease in operating lease liability		$ 343
Remainder of 2021					$ (8)
2022					(16)
2023					(16)
2024					(16)
2025					(16)
Beyond 2025					$ (474)
Aircrafts to be purchased \| aircraft					660
Remainder of 2021					$ 33
Payment Guarantee, Dallas Love Field Series 2010 Bonds
Other Commitments [Line Items]
Principal amount of guarantee					89
Net present value of future principal and interest payments					$ 100
-7 Firm Orders
Other Commitments [Line Items]
Aircrafts to be purchased \| aircraft					242
-7 or -8 Options
Other Commitments [Line Items]
Aircrafts to be purchased \| aircraft					260
Cash Capital Commitments, Boeing Orders
Other Commitments [Line Items]
2022					$ 1,700
2023					1,200
2024					1,100
2025					837
2026					961
Thereafter					$ 7,000
Leaseholds and Leasehold Improvements
Other Commitments [Line Items]
Construction payments		$ 343
Los Angeles World Airports
Other Commitments [Line Items]
Payments for airport projects				$ 410
Decrease in operating lease liability			$ 365
Los Angeles World Airports \| Leaseholds and Leasehold Improvements
Other Commitments [Line Items]
Construction payments			$ 365
Love Field Airport Modernization Corporation \| Series 2010 Bonds
Other Commitments [Line Items]
Debt redeemed	$ 310
Interest expense	$ 7