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Employee Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets and Funded Status
The following tables provide a reconciliation of the changes in the pension and retiree medical and other postretirement benefits obligations, fair value of plan assets and a statement of funded status as of December 31, 2021 and 2020:
 Pension BenefitsRetiree Medical and 
Other Postretirement Benefits
 2021202020212020
 (In millions)
Benefit obligation at beginning of period$19,812 $18,358 $1,046 $824 
Service cost4 2 12 8 
Interest cost526 615 30 30 
Actuarial (gain) loss (1), (2)
(609)1,613 (57)46 
Special termination benefits (3)
— — 139 410 
Plan amendments (4)
— — — (195)
Settlements(1)(36)— — 
Benefit payments(822)(740)(72)(77)
Benefit obligation at end of period$18,910 $19,812 $1,098 $1,046 
Fair value of plan assets at beginning of period$13,557 $12,897 $170 $204 
Actual return on plan assets1,710 1,427 21 13 
Employer contributions (5)
247 9 48 30 
Settlements(1)(36)— — 
Benefit payments(822)(740)(72)(77)
Fair value of plan assets at end of period$14,691 $13,557 $167 $170 
Funded status at end of period$(4,219)$(6,255)$(931)$(876)
(1)The 2021 and 2020 pension actuarial (gain) loss primarily relates to the change in our weighted average discount rate assumption.
(2)The 2021 and 2020 retiree medical and other postretirement benefits actuarial (gain) loss primarily relates to the change in our weighted average discount rate assumption and, in 2021, plan experience adjustments.
(3)During the first quarter of 2021 and the third quarter of 2020, we remeasured our retiree medical and other postretirement benefits to account for enhanced healthcare benefits provided to eligible team members who opted into voluntary early retirement programs offered as a result of reductions to our operation due to the COVID-19 pandemic. As a result, during 2021, we recognized a $139 million special charge for these enhanced healthcare benefits and increased our postretirement benefits obligation by $139 million, and during 2020, we recognized a $410 million special charge for these enhanced healthcare benefits and increased our postretirement benefits obligation by $410 million.
(4)Principally relates to the transition of our retiree medical benefit program from a self-insured plan to a fully-insured Medicare Advantage plan as discussed above.
(5)In January 2021, we made $241 million in contributions to our pension plans, including a contribution of $130 million for the 2020 calendar year that was permitted to be deferred to January 4, 2021 as provided under the CARES Act.
Schedule of Amounts Recognized in Consolidated Balance Sheets
Balance Sheet Position
 Pension BenefitsRetiree Medical and 
Other Postretirement Benefits
 2021202020212020
 (In millions)
As of December 31,
Current liability$7 $7 $90 $55 
Noncurrent liability4,212 6,248 841 821 
Total liabilities$4,219 $6,255 $931 $876 
Schedule of Amounts Recognized in Other Comprehensive Income
Net actuarial loss (gain)$5,252 $6,700 $(396)$(358)
Prior service cost (benefit)47 75 (167)(181)
Total accumulated other comprehensive loss (income), pre-tax
$5,299 $6,775 $(563)$(539)
Schedule of Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets
Plans with Projected Benefit Obligations Exceeding Fair Value of Plan Assets
 Pension Benefits
 20212020
 (In millions)
Projected benefit obligation$18,910 $19,812 
Fair value of plan assets14,691 13,557 
Plans with Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets
 Pension BenefitsRetiree Medical and 
Other Postretirement Benefits
 2021202020212020
 (In millions)
Accumulated benefit obligation$18,899 $19,799 $— $— 
Accumulated postretirement benefit obligation
— — 1,098 1,046 
Fair value of plan assets14,691 13,557 167 170 
Components of Net Periodic Benefit Cost (Income)
Net Periodic Benefit Cost (Income)
 Pension BenefitsRetiree Medical and
Other Postretirement Benefits
 202120202019202120202019
 (In millions)
Defined benefit plans:
Service cost$4 $2 $2 $12 $8 $3 
Interest cost526 615 703 30 30 33 
Expected return on assets(1,084)(1,010)(815)(12)(11)(15)
Special termination benefits— — — 139 410 — 
Settlements— 12 — — — — 
Amortization of:
Prior service cost (benefit)28 30 28 (13)(135)(236)
Unrecognized net loss (gain)212 164 150 (24)(24)(31)
Net periodic benefit cost (income)$(314)$(187)$68 $132 $278 $(246)
Schedule of Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost
The following actuarial assumptions were used to determine our benefit obligations and net periodic benefit cost (income) for the periods presented:
 Pension BenefitsRetiree Medical and
Other Postretirement Benefits
 2021202020212020
Benefit obligations:
Weighted average discount rate3.0%2.7%2.8%2.4%
 Pension BenefitsRetiree Medical and
Other Postretirement Benefits
 202120202019202120202019
Net periodic benefit cost (income):
Weighted average discount rate2.7%3.4%4.4%2.4%3.2%4.3%
Weighted average expected rate of return on plan assets
8.0%8.0%8.0%8.0%8.0%8.0%
Weighted average health care cost trend rate assumed for next year (1)
N/AN/AN/A4.8%4.0%3.7%
(1)The weighted average health care cost trend rate at December 31, 2021 is assumed to decline gradually to 3.9% by 2028 and remain level thereafter.
Schedule of Expected Future Service Benefit Payments
The following benefit payments, which reflect expected future service as appropriate, are expected to be paid (approximately, in millions):
202220232024202520262027-2031
Pension benefits$864 $898 $933 $966 $994 $5,225 
Retiree medical and other postretirement benefits114 109 103 99 95 390 
Schedule of Allocation of Plan Assets The current strategic target asset allocation is as follows:
Asset Class/Sub-ClassAllowed Range
Equity
45% - 80%
Public:
U.S. Large
10% - 40%
U.S. Small/Mid
2% - 10%
International
10% - 25%
International Small/Mid
0% - 10%
Emerging Markets
2% - 15%
Alternative Investments
5% - 30%
Fixed Income
20% - 55%
Public:
U.S. Long Duration
15% - 45%
High Yield and Emerging Markets
0% - 10%
Private Income
0% - 15%
Other
0% - 5%
Cash Equivalents
0% - 20%
Changes in Fair Value Measurements of Level 3 Investments
Changes in fair value measurements of Level 3 investments during the years ended December 31, 2021 and 2020, were as follows (in millions):
20212020
Balance at beginning of year$17 $12 
Actual gain on plan assets:
Relating to assets still held at the reporting date10 1 
Purchases32 4 
Sales(1)— 
Balance at end of year$58 $17 
Pension Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Allocation of Plan Assets
The fair value of our pension plan assets at December 31, 2021 and 2020, by asset category, were as follows (in millions):
 Fair Value Measurements as of December 31, 2021
Asset CategoryQuoted Prices in
Active Markets
for Identical
Assets
(Level 1)		Significant
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)		Total
Cash and cash equivalents$76 $— $— $76 
Equity securities:
International markets (a), (b)
2,166 — 4 2,170 
Large-cap companies (b)
1,860 — — 1,860 
Mid-cap companies (b)
449 — — 449 
Small-cap companies (b)
84 2 — 86 
Mutual funds/exchange traded funds (c)
263 — — 263 
Fixed income:
Corporate debt (d)
— 2,847 — 2,847 
Government securities (e)
— 1,128 — 1,128 
U.S. municipal securities— 19 — 19 
Alternative instruments:
Private market partnerships (f)
— — 52 52 
Private market partnerships measured at net asset value (f), (g)
— — — 2,827 
Common/collective trusts (h)
— 337 — 337 
Common/collective trusts measured at net asset value (g), (h)
— — — 2,514 
Insurance group annuity contracts— — 2 2 
Other investments— 3 — 3 
Dividend and interest receivable45 — — 45 
Due from brokers for sale of securities – net10 — — 10 
Other receivables – net3 — — 3 
Total$4,956 $4,336 $58 $14,691 
(a)Holdings are diversified as follows: 14% United Kingdom, 10% Ireland, 10% Japan, 9% Switzerland, 7% France, 6% Germany, 12% emerging markets and the remaining 32% with no concentration greater than 5% in any one country.
(b)There are no significant concentrations of holdings by company or industry.
(c)Investment includes holdings invested 70% in U.S. treasuries and corporate bonds, 17% in equity securities of international companies and 13% in equity securities of large-cap, mid-cap and small-cap U.S. companies.
(d)Includes approximately 81% investments in corporate debt with a S&P rating lower than A and 19% investments in corporate debt with a S&P rating A or higher. Holdings include 86% U.S. companies, 12% international companies and 2% emerging market companies.
(e)Includes approximately 94% investments in U.S. domestic government securities and 6% in emerging market government securities. There are no significant foreign currency risks within this classification.
(f)Includes limited partnerships that invest primarily in domestic private equity and private income opportunities. The pension plan’s master trust does not have the right to redeem its limited partnership investment at its net asset value, but rather receives distributions as the underlying assets are liquidated. It is estimated that the underlying assets of these funds will be gradually liquidated over the next one to ten years. Additionally, the pension plan’s master trust has future funding commitments of approximately $1.6 billion over the next ten years.
(g)Certain investments that are measured using net asset value per share (or its equivalent) as a practical expedient for fair value have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the notes to the consolidated financial statements.
(h)Investment includes 31% in a common/collective trust investing in large market capitalization equity securities within the U.S., 29% in three common/collective trusts investing in emerging country equity securities, 22% in a common/collective trust investing in equity securities of companies located outside the U.S., 11% in a collective interest trust investing primarily in short-term securities, 6% in a common/collective trust investing in smaller market capitalization equity securities within the U.S. and 1% in Canadian segregated balanced value, income growth and diversified pooled funds. For some trusts, requests for withdrawals must meet specific requirements with advance notice of redemption preferred.
 Fair Value Measurements as of December 31, 2020
Asset CategoryQuoted Prices in
Active Markets
for Identical
Assets
(Level 1)		Significant
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)		Total
Cash and cash equivalents$40 $— $— $40 
Equity securities:
International markets (a), (b)
2,282 — — 2,282 
Large-cap companies (b)
2,085 — — 2,085 
Mid-cap companies (b)
428 — — 428 
Small-cap companies (b)
73 1 — 74 
Mutual funds (c)
80 — — 80 
Fixed income:
Corporate debt (d)
— 3,026 — 3,026 
Government securities (e)
— 1,010 — 1,010 
U.S. municipal securities— 30 — 30 
Alternative instruments:
Private market partnerships (f)
— — 15 15 
Private market partnerships measured at net asset value (f), (g)
— — — 1,791 
Common/collective trusts (h)
— 259 — 259 
Common/collective trusts measured at net asset value (g), (h)
— — — 2,384 
Insurance group annuity contracts— — 2 2 
Dividend and interest receivable49 — — 49 
Due from brokers for sale of securities – net1 — — 1 
Other receivables – net1 — — 1 
Total$5,039 $4,326 $17 $13,557 
(a)Holdings are diversified as follows: 11% Switzerland, 11% Ireland, 10% United Kingdom, 9% France, 8% Japan, 7% Germany, 6% Netherlands, 13% emerging markets and the remaining 25% with no concentration greater than 5% in any one country.
(b)There are no significant concentrations of holdings by company or industry.
(c)Investment includes mutual funds invested 39% in equity securities of large-cap, mid-cap and small-cap U.S. companies, 35% in U.S. treasuries and corporate bonds and 26% in equity securities of international companies.
(d)Includes approximately 77% investments in corporate debt with a S&P rating lower than A and 23% investments in corporate debt with a S&P rating A or higher. Holdings include 89% U.S. companies, 9% international companies and 2% emerging market companies.
(e)Includes approximately 89% investments in U.S. domestic government securities, 9% in emerging market government securities and 2% in international government securities. There are no significant foreign currency risks within this classification.
(f)Includes limited partnerships that invest primarily in domestic private equity and private income opportunities. The pension plan’s master trust does not have the right to redeem its limited partnership investment at its net asset value, but rather receives distributions as the underlying assets are liquidated. It is estimated that the underlying assets of these funds will be gradually liquidated over the next one to ten years. Additionally, the pension plan’s master trust has future funding commitments of approximately $1.6 billion over the next ten years.
(g)Certain investments that are measured using net asset value per share (or its equivalent) as a practical expedient for fair value have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the notes to the consolidated financial statements.
(h)Investment includes 34% in a common/collective trust investing in large market capitalization equity securities within the U.S., 30% in three common/collective trusts investing in emerging country equity securities, 21% in a common/collective trust investing in equity securities of companies located outside the U.S., 9% in a collective interest trust investing primarily in short-term securities, 5% in a common/collective trust investing in smaller market capitalization equity securities within the U.S. and 1% in Canadian segregated balanced value, income growth and diversified pooled funds. For some trusts, requests for withdrawals must meet specific requirements with advance notice of redemption preferred.
Retiree Medical and  Other Postretirement Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Allocation of Plan Assets
The fair value of our retiree medical and other postretirement benefits plans’ assets by asset category, were as follows (in millions):
 Fair Value Measurements as of December 31, 2021
Asset CategoryQuoted Prices in
Active Markets for Identical Assets
(Level 1)		Significant
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)		Total
Money market fund$4 $— $— $4 
Mutual funds – AAL Class— 163 — 163 
Total$4 $163 $— $167 
 Fair Value Measurements as of December 31, 2020
Asset CategoryQuoted Prices in
Active Markets for Identical Assets
(Level 1)		Significant
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)		Total
Money market fund$4 $— $— $4 
Mutual funds – AAL Class— 166 — 166 
Total$4 $166 $— $170 
American Airlines, Inc.  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets and Funded Status
The following tables provide a reconciliation of the changes in the pension and retiree medical and other postretirement benefits obligations, fair value of plan assets and a statement of funded status as of December 31, 2021 and 2020:
 Pension BenefitsRetiree Medical and
Other Postretirement Benefits
 2021202020212020
 (In millions)
Benefit obligation at beginning of period$19,690 $18,246 $1,046 $824 
Service cost3 2 12 8 
Interest cost523 611 30 30 
Actuarial (gain) loss (1), (2)
(606)1,603 (57)46 
Special termination benefits (3)
— — 139 410 
Plan amendments (4)
— — — (195)
Settlements(1)(36)— — 
Benefit payments(818)(736)(72)(77)
Benefit obligation at end of period$18,791 $19,690 $1,098 $1,046 
Fair value of plan assets at beginning of period$13,477 $12,829 $170 $204 
Actual return on plan assets1,700 1,414 21 13 
Employer contributions (5)
247 6 48 30 
Settlements(1)(36)— — 
Benefit payments(818)(736)(72)(77)
Fair value of plan assets at end of period$14,605 $13,477 $167 $170 
Funded status at end of period$(4,186)$(6,213)$(931)$(876)
(1)The 2021 and 2020 pension actuarial (gain) loss primarily relates to the change in American’s weighted average discount rate assumption.
(2)The 2021 and 2020 retiree medical and other postretirement benefits actuarial (gain) loss primarily relates to the change in American’s weighted average discount rate assumption and, in 2021, plan experience adjustments.
(3)During the first quarter of 2021 and the third quarter of 2020, American remeasured its retiree medical and other postretirement benefits to account for enhanced healthcare benefits provided to eligible team members who opted into voluntary early retirement programs offered as a result of reductions to its operation due to the COVID-19 pandemic. As a result, during 2021, American recognized a $139 million special charge for these enhanced healthcare benefits and increased its postretirement benefits obligation by $139 million and during 2020 American recognized a $410 million special charge for these enhanced healthcare benefits and increased its postretirement benefits obligation by $410 million.
(4)Principally relates to the transition of American’s retiree medical benefit program from a self-insured plan to a fully-insured Medicare Advantage plan as discussed above.
(5)In January 2021, American made $241 million in contributions to its pension plans, including a contribution of $130 million for the 2020 calendar year that was permitted to be deferred to January 4, 2021 as provided under the CARES Act.
Schedule of Amounts Recognized in Consolidated Balance Sheets
 Pension BenefitsRetiree Medical and
Other Postretirement Benefits
 2021202020212020
 (In millions)
As of December 31,
Current liability$7 $7 $90 $55 
Noncurrent liability4,179 6,206 841 821 
Total liabilities$4,186 $6,213 $931 $876 
Schedule of Amounts Recognized in Other Comprehensive Income
Net actuarial loss (gain)$5,241 $6,679 $(396)$(358)
Prior service cost (benefit)46 75 (167)(181)
Total accumulated other comprehensive loss (income), pre-tax
$5,287 $6,754 $(563)$(539)
Schedule of Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets
Plans with Projected Benefit Obligations Exceeding Fair Value of Plan Assets
 Pension Benefits
 20212020
 (In millions)
Projected benefit obligation$18,791 $19,690 
Fair value of plan assets14,605 13,477 
Plans with Accumulated Benefit Obligations Exceeding Fair Value of Plan Assets
 Pension BenefitsRetiree Medical and
Other Postretirement Benefits
 2021202020212020
 (In millions)
Accumulated benefit obligation$18,782 $19,678 $— $— 
Accumulated postretirement benefit obligation
— — 1,098 1,046 
Fair value of plan assets14,605 13,477 167 170 
Components of Net Periodic Benefit Cost (Income)
 Pension BenefitsRetiree Medical and
  Other Postretirement Benefits  
 202120202019202120202019
 (In millions)
Defined benefit plans:
Service cost$3 $2 $2 $12 $8 $3 
Interest cost523 611 699 30 30 33 
Expected return on assets(1,078)(1,005)(811)(12)(11)(15)
Special termination benefits— — — 139 410 — 
Settlements— 12 — — — — 
Amortization of:
Prior service cost (benefit)28 29 28 (13)(135)(236)
Unrecognized net loss (gain)211 164 150 (24)(24)(31)
Net periodic benefit cost (income)$(313)$(187)$68 $132 $278 $(246)
Schedule of Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost
The following actuarial assumptions were used to determine American’s benefit obligations and net periodic benefit cost (income) for the periods presented:
 Pension BenefitsRetiree Medical and
Other Postretirement Benefits
 2021202020212020
Benefit obligations:
Weighted average discount rate3.0%2.7%2.8%2.4%
 Pension BenefitsRetiree Medical and
Other Postretirement Benefits
 202120202019202120202019
Net periodic benefit cost (income):
Weighted average discount rate2.7%3.4%4.4%2.4%3.2%4.3%
Weighted average expected rate of return on plan assets
8.0%8.0%8.0%8.0%8.0%8.0%
Weighted average health care cost trend rate assumed for next year (1)
N/AN/AN/A4.8%4.0%3.7%
(1)The weighted average health care cost trend rate at December 31, 2021 is assumed to decline gradually to 3.9% by 2028 and remain level thereafter.
Schedule of Expected Future Service Benefit Payments
The following benefit payments, which reflect expected future service as appropriate, are expected to be paid (approximately, in millions):
202220232024202520262027-2031
Pension benefits$860 $893 $928 $961 $989 $5,194 
Retiree medical and other postretirement benefits114 109 103 99 95 390 
Schedule of Allocation of Plan Assets The current strategic target asset allocation is as follows:
Asset Class/Sub-ClassAllowed Range
Equity
45% - 80%
Public:
U.S. Large
10% - 40%
U.S. Small/Mid
2% - 10%
International
10% - 25%
International Small/Mid
0% - 10%
Emerging Markets
2% - 15%
Alternative Investments
5% - 30%
Fixed Income
20% - 55%
Public:
U.S. Long Duration
15% - 45%
High Yield and Emerging Markets
0% - 10%
Private Income
0% - 15%
Other
0% - 5%
Cash Equivalents
0% - 20%
Changes in Fair Value Measurements of Level 3 Investments
Changes in fair value measurements of Level 3 investments during the years ended December 31, 2021 and 2020, were as follows (in millions):
20212020
Balance at beginning of year$17 $12 
Actual gain on plan assets:
Relating to assets still held at the reporting date10 1 
Purchases32 4 
Sales(1)— 
Balance at end of year$58 $17 
American Airlines, Inc. | Pension Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Allocation of Plan Assets
The fair value of American’s pension plan assets at December 31, 2021 and 2020, by asset category, were as follows (in millions):
 Fair Value Measurements as of December 31, 2021
Asset CategoryQuoted Prices in
Active Markets 
for Identical Assets
(Level 1)		Significant
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)		Total
Cash and cash equivalents$76 $— $— $76 
Equity securities:
International markets (a), (b)
2,166 — 4 2,170 
Large-cap companies (b)
1,860 — — 1,860 
Mid-cap companies (b)
449 — — 449 
Small-cap companies (b)
84 2 — 86 
Mutual funds/exchange traded funds (c)
177 — — 177 
Fixed income:
Corporate debt (d)
— 2,847 — 2,847 
Government securities (e)
— 1,128 — 1,128 
U.S. municipal securities— 19 — 19 
Alternative instruments:
Private market partnerships (f)
— — 52 52 
Private market partnerships measured at net asset value (f), (g)
— — — 2,827 
Common/collective trusts (h)
— 337 — 337 
Common/collective trusts measured at net asset value (g), (h)
— — — 2,514 
Insurance group annuity contracts— — 2 2 
Other investments— 3 — 3 
Dividend and interest receivable45 — — 45 
Due from brokers for sale of securities – net10 — — 10 
Other receivables – net3 — — 3 
Total$4,870 $4,336 $58 $14,605 
(a)Holdings are diversified as follows: 14% United Kingdom, 10% Ireland, 10% Japan, 9% Switzerland, 7% France, 6% Germany, 12% emerging markets and the remaining 32% with no concentration greater than 5% in any one country.
(b)There are no significant concentrations of holdings by company or industry.
(c)Investment includes holdings invested 86% in U.S. treasuries and corporate bonds and 14% in equity securities of international companies.
(d)Includes approximately 81% investments in corporate debt with a S&P rating lower than A and 19% investments in corporate debt with a S&P rating A or higher. Holdings include 86% U.S. companies, 12% international companies and 2% emerging market companies.
(e)Includes approximately 94% investments in U.S. domestic government securities and 6% in emerging market government securities. There are no significant foreign currency risks within this classification.
(f)Includes limited partnerships that invest primarily in domestic private equity and private income opportunities. The pension plan’s master trust does not have the right to redeem its limited partnership investment at its net asset value, but rather receives distributions as the underlying assets are liquidated. It is estimated that the underlying assets of these funds will be gradually liquidated over the next one to ten years. Additionally, the pension plan’s master trust has future funding commitments of approximately $1.6 billion over the next ten years.
(g)Certain investments that are measured using net asset value per share (or its equivalent) as a practical expedient for fair value have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the notes to the consolidated financial statements.
(h)Investment includes 31% in a common/collective trust investing in large market capitalization equity securities within the U.S., 29% in three common/collective trusts investing in emerging country equity securities, 22% in a common/collective trust investing in equity securities of companies located outside the U.S., 11% in a collective interest trust investing primarily in short-term securities, 6% in a common/collective trust investing in smaller market capitalization equity securities within the U.S. and 1% in Canadian segregated balanced value, income growth and diversified pooled funds. For some trusts, requests for withdrawals must meet specific requirements with advance notice of redemption preferred.
 Fair Value Measurements as of December 31, 2020
Asset CategoryQuoted Prices in
Active Markets 
for Identical Assets
(Level 1)		Significant
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)		Total
Cash and cash equivalents$40 $— $— $40 
Equity securities:
International markets (a), (b)
2,282 — — 2,282 
Large-cap companies (b)
2,085 — — 2,085 
Mid-cap companies (b)
428 — — 428 
Small-cap companies (b)
73 1 — 74 
Fixed income:
Corporate debt (c)
— 3,026 — 3,026 
Government securities (d)
— 1,010 — 1,010 
U.S. municipal securities— 30 — 30 
Alternative instruments:
Private market partnerships (e)
— — 15 15 
Private market partnerships measured at net asset value (e), (f)
— — — 1,791 
Common/collective trusts (g)
— 259 — 259 
Common/collective trusts measured at net asset value (f), (g)
— — — 2,384 
Insurance group annuity contracts— — 2 2 
Dividend and interest receivable49 — — 49 
Due from brokers for sale of securities – net1 — — 1 
Other receivables – net1 — — 1 
Total$4,959 $4,326 $17 $13,477 
(a)Holdings are diversified as follows: 11% Switzerland, 11% Ireland, 10% United Kingdom, 9% France, 8% Japan, 7% Germany, 6% Netherlands, 13% emerging markets and the remaining 25% with no concentration greater than 5% in any one country.
(b)There are no significant concentrations of holdings by company or industry.
(c)Includes approximately 77% investments in corporate debt with a S&P rating lower than A and 23% investments in corporate debt with a S&P rating A or higher. Holdings include 89% U.S. companies, 9% international companies and 2% emerging market companies.
(d)Includes approximately 89% investments in U.S. domestic government securities, 9% in emerging market government securities and 2% in international government securities. There are no significant foreign currency risks within this classification.
(e)Includes limited partnerships that invest primarily in domestic private equity and private income opportunities. The pension plan’s master trust does not have the right to redeem its limited partnership investment at its net asset value, but rather receives distributions as the underlying assets are liquidated. It is estimated that the underlying assets of these funds will be gradually liquidated over the next one to ten years. Additionally, the pension plan’s master trust has future funding commitments of approximately $1.6 billion over the next ten years.
(f)Certain investments that are measured using net asset value per share (or its equivalent) as a practical expedient for fair value have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the notes to the consolidated financial statements.
(g)Investment includes 34% in a common/collective trust investing in large market capitalization equity securities within the U.S., 30% in three common/collective trusts investing in emerging country equity securities, 21% in a common/collective trust investing in equity securities of companies located outside the U.S., 9% in a collective interest trust investing primarily in short-term securities, 5% in a common/collective trust investing in smaller market capitalization equity securities within the U.S. and 1% in Canadian segregated balanced value, income growth and diversified pooled funds. For some trusts, requests for withdrawals must meet specific requirements with advance notice of redemption preferred.
American Airlines, Inc. | Retiree Medical and  Other Postretirement Benefits  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Allocation of Plan Assets
The fair value of American’s retiree medical and other postretirement benefits plans’ assets by asset category, were as follows (in millions):
 Fair Value Measurements as of December 31, 2021
Asset CategoryQuoted Prices in
Active Markets for
Identical Assets
(Level 1)		Significant
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)		Total
Money market fund$4 $— $— $4 
Mutual funds – AAL Class— 163 — 163 
Total$4 $163 $— $167 

 Fair Value Measurements as of December 31, 2020
Asset CategoryQuoted Prices in
Active Markets for
Identical Assets
(Level 1)		Significant
Observable
Inputs
(Level 2)		Significant
Unobservable
Inputs
(Level 3)		Total
Money market fund$4 $— $— $4 
Mutual funds – AAL Class— 166 — 166 
Total$4 $166 $— $170