Commitments, Contingencies and Guarantees - Aircraft, Engine and Other Purchase Commitments (Details) $ in Millions	Dec. 31, 2024 USD ($) aircraft	Dec. 31, 2023 USD ($)
Purchase Obligations
Equipment purchase deposits	$ 1,012	$ 760
B-787-9
Purchase Obligations
Number of aircraft, deferrable, scheduled to be delivered in 2024 \| aircraft	5
Aircraft Fuel, Flight Equipment Maintenance and Information Technology Support
Unrecorded Unconditional Purchase Obligations
2025	$ 4,600
2026	2,000
2027	1,500
2028	386
2029	502
Aircraft and Engine Commitments
Purchase Obligations
2025	2,169
2026	4,186
2027	4,003
2028	3,403
2029	3,345
2030 and Thereafter	9,009
Total	26,115
American Airlines, Inc.
Purchase Obligations
Equipment purchase deposits	1,012	$ 760
American Airlines, Inc. \| Aircraft Fuel, Flight Equipment Maintenance and Information Technology Support
Unrecorded Unconditional Purchase Obligations
2025	4,600
2026	2,000
2027	1,500
2028	381
2029	500
2030 and thereafter	3,400
American Airlines, Inc. \| Aircraft and Engine Commitments
Purchase Obligations
2025	2,169
2026	4,186
2027	4,003
2028	3,403
2029	3,345
2030 and Thereafter	9,009
Total	$ 26,115

Number Of Aircrafts, Deferrable, Scheduled To Be Delivered, Period One

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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