Defined benefit plan minimum contributions by employer.

No definition available.

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- Definition

Defined benefit plan, supplemental contributions by employer.

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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Period Type:	duration

- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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- Definition

Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

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- Definition

Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

+ References

+ Details

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- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit from event reducing expected years of future service of present employees or eliminating accrual of defined benefits for some or all future services of present employees.

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- Definition

Amount of payment, which decreases plan assets of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract.

+ References

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Employee Benefit Plans - Schedule of Changes in Fair Value of Plan Assets (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Jan. 31, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Pension Benefits
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of period	$ 13,557		$ 12,897	$ 10,053
Actual return on plan assets			1,427	2,305
Employer contributions			9	1,230
Settlements			(36)	(2)
Benefit payments			(740)	(689)
Fair value of plan assets at end of period			13,557	12,897	$ 10,053
Funded status at end of period			(6,255)	(5,461)
Special termination benefits			0	0	0
Minimum required cash contribution				786
Supplemental contributions by employer				444
Pension Benefits \| Subsequent Event
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Employer contributions	241
Retiree Medical and Other Postretirement Benefits
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of period	170		204	225
Actual return on plan assets			13	41
Employer contributions			30	12
Settlements			0	0
Benefit payments			(77)	(74)
Fair value of plan assets at end of period			170	204	225
Funded status at end of period			(876)	(620)
Special termination benefits		$ 410	410	0	0
American Airlines, Inc. \| Pension Benefits
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of period	13,477		12,829	10,001
Actual return on plan assets			1,414	2,292
Employer contributions			6	1,224
Settlements			(36)	(2)
Benefit payments			(736)	(686)
Fair value of plan assets at end of period			13,477	12,829	10,001
Funded status at end of period			(6,213)	(5,417)
Special termination benefits			0	0	0
Minimum required cash contribution				780
Supplemental contributions by employer				444
American Airlines, Inc. \| Retiree Medical and Other Postretirement Benefits
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of period	$ 170		204	225
Actual return on plan assets			13	41
Employer contributions			30	12
Settlements			0	0
Benefit payments			(77)	(74)
Fair value of plan assets at end of period			170	204	225
Funded status at end of period			(876)	(620)
Special termination benefits		$ 410	$ 410	$ 0	$ 0