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Employee Benefit Plans (Tables) | 9 Months Ended
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Sep. 30, 2024
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Net Periodic Benefit Cost (Income) | The following table provides the components of net periodic benefit cost (income) (in millions):
|  | Pension Benefits |  | Retiree Medical and Other Postretirement Benefits
Three Months Ended September 30, |  | 2024 |  | 2023 |  | 2024 |  | 2023
Service cost |  | $ | — |  |  | $ | 1 |  |  | $ | 8 |  |  | $ | 4 |
Interest cost |  | 180 |  |  | 188 |  |  | 17 |  |  | 12 |
Expected return on assets |  | (245) |  |  | (230) |  |  | (2) |  |  | (2) |
Amortization of: |  |  |  |  |  |  |  |
Prior service cost (benefit) |  | — |  |  | 4 |  |  | 3 |  |  | (3) |
Unrecognized net loss (gain) |  | 26 |  |  | 25 |  |  | (6) |  |  | (10) |
Net periodic benefit cost (income) |  | $ | (39) |  |  | $ | (12) |  |  | $ | 20 |  |  | $ | 1 |
|  | Pension Benefits |  | Retiree Medical and Other Postretirement Benefits
Nine Months Ended September 30, |  | 2024 |  | 2023 |  | 2024 |  | 2023
Service cost |  | $ | 1 |  |  | $ | 2 |  |  | $ | 23 |  |  | $ | 10 |
Interest cost |  | 542 |  |  | 568 |  |  | 51 |  |  | 36 |
Expected return on assets |  | (733) |  |  | (690) |  |  | (7) |  |  | (7) |
Amortization of: |  |  |  |  |  |  |  |
Prior service cost (benefit) |  | — |  |  | 18 |  |  | 11 |  |  | (10) |
Unrecognized net loss (gain) |  | 79 |  |  | 80 |  |  | (19) |  |  | (27) |
Net periodic benefit cost (income) |  | $ | (111) |  |  | $ | (22) |  |  | $ | 59 |  |  | $ | 2 |
American Airlines, Inc. |
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Net Periodic Benefit Cost (Income) | The following table provides the components of net periodic benefit cost (income) (in millions):
|  | Pension Benefits |  | Retiree Medical and Other Postretirement Benefits
Three Months Ended September 30, |  | 2024 |  | 2023 |  | 2024 |  | 2023
Service cost |  | $ | — |  |  | $ | — |  |  | $ | 8 |  |  | $ | 4 |
Interest cost |  | 178 |  |  | 187 |  |  | 17 |  |  | 12 |
Expected return on assets |  | (243) |  |  | (228) |  |  | (2) |  |  | (2) |
Amortization of: |  |  |  |  |  |  |  |
Prior service cost (benefit) |  | — |  |  | 4 |  |  | 3 |  |  | (3) |
Unrecognized net loss (gain) |  | 26 |  |  | 25 |  |  | (6) |  |  | (10) |
Net periodic benefit cost (income) |  | $ | (39) |  |  | $ | (12) |  |  | $ | 20 |  |  | $ | 1 |
|  | Pension Benefits |  | Retiree Medical and Other Postretirement Benefits
Nine Months Ended September 30, |  | 2024 |  | 2023 |  | 2024 |  | 2023
Service cost |  | $ | 1 |  |  | $ | 1 |  |  | $ | 23 |  |  | $ | 10 |
Interest cost |  | 539 |  |  | 564 |  |  | 51 |  |  | 36 |
Expected return on assets |  | (729) |  |  | (685) |  |  | (7) |  |  | (7) |
Amortization of: |  |  |  |  |  |  |  |
Prior service cost (benefit) |  | — |  |  | 18 |  |  | 11 |  |  | (10) |
Unrecognized net loss (gain) |  | 79 |  |  | 80 |  |  | (19) |  |  | (27) |
Net periodic benefit cost (income) |  | $ | (110) |  |  | $ | (22) |  |  | $ | 59 |  |  | $ | 2 |

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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