2021 Q4 Form 10-K Financial Statement
#000010051722000009 Filed on February 18, 2022
Income Statement
Concept | 2021 Q4 | 2021 | 2020 Q4 |
---|---|---|---|
Revenue | $8.192B | $24.63B | $3.412B |
YoY Change | 140.09% | 60.43% | -68.66% |
Cost Of Revenue | $3.706B | $11.86B | $1.993B |
YoY Change | 85.95% | 41.64% | -52.16% |
Gross Profit | $4.486B | $12.77B | $1.419B |
YoY Change | 216.14% | 82.98% | -78.89% |
Gross Profit Margin | 54.76% | 51.85% | 41.59% |
Selling, General & Admin | $2.814B | $10.34B | $2.248B |
YoY Change | 25.18% | 2.72% | -35.68% |
% of Gross Profit | 62.73% | 80.97% | 158.42% |
Research & Development | |||
YoY Change | |||
% of Gross Profit | |||
Depreciation & Amortization | $619.0M | $2.485B | $629.0M |
YoY Change | -1.59% | -0.12% | 3.8% |
% of Gross Profit | 13.8% | 19.46% | 44.33% |
Operating Expenses | $4.838B | $17.16B | $3.703B |
YoY Change | 30.65% | 7.56% | -35.39% |
Operating Profit | -$352.0M | -$1.022B | -$2.135B |
YoY Change | -83.51% | -83.93% | -347.97% |
Interest Expense | -$525.0M | -$1.575B | -$228.0M |
YoY Change | 130.26% | 38.64% | -642.86% |
% of Operating Profit | |||
Other Income/Expense, Net | $88.00M | -$1.535B | -$10.00M |
YoY Change | -980.0% | -37.68% | -83.05% |
Pretax Income | -$845.0M | -$2.557B | -$2.373B |
YoY Change | -64.39% | -71.02% | -381.16% |
Income Tax | -$199.0M | -$593.0M | -$476.0M |
% Of Pretax Income | |||
Net Earnings | -$646.0M | -$1.964B | -$1.897B |
YoY Change | -65.95% | -72.22% | -395.94% |
Net Earnings / Revenue | -7.89% | -7.97% | -55.6% |
Basic Earnings Per Share | -$6.10 | -$6.39 | |
Diluted Earnings Per Share | -$1.996M | -$6.10 | -$6.387M |
COMMON SHARES | |||
Basic Shares Outstanding | 323.8M shares | 321.9M shares | 291.0M shares |
Diluted Shares Outstanding | 321.9M shares |
Balance Sheet
Concept | 2021 Q4 | 2021 | 2020 Q4 |
---|---|---|---|
SHORT-TERM ASSETS | |||
Cash & Short-Term Investments | $18.41B | $18.41B | $11.68B |
YoY Change | 57.55% | 57.55% | 136.31% |
Cash & Equivalents | $18.28B | $18.28B | $11.27B |
Short-Term Investments | $123.0M | $123.0M | $414.0M |
Other Short-Term Assets | $782.0M | $782.0M | $890.0M |
YoY Change | -12.13% | -12.13% | 9.34% |
Inventory | $983.0M | $983.0M | $932.0M |
Prepaid Expenses | |||
Receivables | $1.663B | $1.663B | $1.295B |
Other Receivables | $0.00 | $0.00 | $0.00 |
Total Short-Term Assets | $21.83B | $21.83B | $14.80B |
YoY Change | 47.53% | 47.53% | 80.62% |
LONG-TERM ASSETS | |||
Property, Plant & Equipment | $36.72B | $36.72B | $36.00B |
YoY Change | 1.99% | 1.99% | 19.33% |
Goodwill | $4.527B | $4.527B | |
YoY Change | 0.0% | 0.09% | |
Intangibles | $2.803B | $2.838B | |
YoY Change | -1.23% | -5.68% | |
Long-Term Investments | $171.0M | $1.344B | $139.0M |
YoY Change | 23.02% | 34.4% | 10.32% |
Other Assets | $9.622B | $872.0M | $8.745B |
YoY Change | 10.03% | 149.86% | -7.84% |
Total Long-Term Assets | $46.34B | $46.34B | $44.75B |
YoY Change | 3.56% | 3.56% | 0.75% |
TOTAL ASSETS | |||
Total Short-Term Assets | $21.83B | $21.83B | $14.80B |
Total Long-Term Assets | $46.34B | $46.34B | $44.75B |
Total Assets | $68.18B | $68.18B | $59.55B |
YoY Change | 14.49% | 14.49% | 13.19% |
SHORT-TERM LIABILITIES | |||
YoY Change | |||
Accounts Payable | $2.562B | $2.562B | $1.595B |
YoY Change | 60.63% | 60.63% | -40.99% |
Accrued Expenses | $2.677B | $2.677B | $2.572B |
YoY Change | 4.08% | 4.08% | -13.02% |
Deferred Revenue | |||
YoY Change | |||
Short-Term Debt | $0.00 | $0.00 | $0.00 |
YoY Change | |||
Long-Term Debt Due | $3.002B | $3.078B | $1.911B |
YoY Change | 57.09% | 47.06% | 35.82% |
Total Short-Term Liabilities | $18.30B | $18.30B | $12.73B |
YoY Change | 43.84% | 43.84% | -14.81% |
LONG-TERM LIABILITIES | |||
Long-Term Debt | $30.36B | $30.58B | $24.84B |
YoY Change | 22.25% | 22.03% | 88.94% |
Other Long-Term Liabilities | $1.284B | $14.26B | $1.156B |
YoY Change | 11.07% | -9.75% | 12.89% |
Total Long-Term Liabilities | $31.65B | $44.84B | $25.99B |
YoY Change | 21.75% | 9.74% | 83.44% |
TOTAL LIABILITIES | |||
Total Short-Term Liabilities | $18.30B | $18.30B | $12.73B |
Total Long-Term Liabilities | $31.65B | $44.84B | $25.99B |
Total Liabilities | $49.95B | $63.15B | $38.72B |
YoY Change | 29.01% | 17.84% | 33.02% |
SHAREHOLDERS EQUITY | |||
Retained Earnings | $625.0M | $2.626B | |
YoY Change | -76.2% | -72.97% | |
Common Stock | $9.160B | $8.370B | |
YoY Change | 9.44% | 36.5% | |
Preferred Stock | |||
YoY Change | |||
Treasury Stock (at cost) | $3.814B | $3.897B | |
YoY Change | -2.13% | 8.28% | |
Treasury Stock Shares | |||
Shareholders Equity | $5.029B | $5.029B | $5.960B |
YoY Change | |||
Total Liabilities & Shareholders Equity | $68.18B | $68.18B | $59.55B |
YoY Change | 14.49% | 14.49% | 13.19% |
Cashflow Statement
Concept | 2021 Q4 | 2021 | 2020 Q4 |
---|---|---|---|
OPERATING ACTIVITIES | |||
Net Income | -$646.0M | -$1.964B | -$1.897B |
YoY Change | -65.95% | -72.22% | -395.94% |
Depreciation, Depletion And Amortization | $619.0M | $2.485B | $629.0M |
YoY Change | -1.59% | -0.12% | 3.8% |
Cash From Operating Activities | -$269.0M | $2.067B | -$2.177B |
YoY Change | -87.64% | -150.01% | -284.34% |
INVESTING ACTIVITIES | |||
Capital Expenditures | -$536.0M | -$2.107B | -$97.00M |
YoY Change | 452.58% | 22.0% | -91.86% |
Acquisitions | |||
YoY Change | |||
Other Investing Activities | $188.0M | $1.000M | $137.0M |
YoY Change | 37.23% | -125.0% | -200.0% |
Cash From Investing Activities | -$348.0M | -$1.672B | $40.00M |
YoY Change | -970.0% | -3444.0% | -103.01% |
FINANCING ACTIVITIES | |||
Cash Dividend Paid | |||
YoY Change | |||
Common Stock Issuance & Retirement, Net | $0.00 | ||
YoY Change | -100.0% | ||
Debt Paid & Issued, Net | $5.205B | ||
YoY Change | 16.99% | ||
Cash From Financing Activities | -575.0M | $6.396B | 481.0M |
YoY Change | -219.54% | -50.64% | -1123.4% |
NET CHANGE | |||
Cash From Operating Activities | -269.0M | $2.067B | -2.177B |
Cash From Investing Activities | -348.0M | -$1.672B | 40.00M |
Cash From Financing Activities | -575.0M | $6.396B | 481.0M |
Net Change In Cash | -1.192B | $6.791B | -1.656B |
YoY Change | -28.02% | -23.47% | 749.23% |
FREE CASH FLOW | |||
Cash From Operating Activities | -$269.0M | $2.067B | -$2.177B |
Capital Expenditures | -$536.0M | -$2.107B | -$97.00M |
Free Cash Flow | $267.0M | $4.174B | -$2.080B |
YoY Change | -112.84% | -273.48% | -187.65% |
Facts In Submission
Frame | Concept Type | Concept / XBRL Key | Value | Unit |
---|---|---|---|---|
CY2021 | dei |
Document Fiscal Period Focus
DocumentFiscalPeriodFocus
|
FY | |
CY2021 | dei |
Amendment Flag
AmendmentFlag
|
false | |
CY2021 | dei |
Document Fiscal Year Focus
DocumentFiscalYearFocus
|
2021 | |
CY2021 | dei |
Entity Central Index Key
EntityCentralIndexKey
|
0000100517 | |
CY2020 | us-gaap |
Accounting Standards Update Extensible List
AccountingStandardsUpdateExtensibleList
|
http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member | |
CY2021 | dei |
Document Type
DocumentType
|
10-K | |
CY2021 | dei |
Document Annual Report
DocumentAnnualReport
|
true | |
CY2021 | dei |
Document Period End Date
DocumentPeriodEndDate
|
2021-12-31 | |
CY2021 | dei |
Current Fiscal Year End Date
CurrentFiscalYearEndDate
|
--12-31 | |
CY2021 | dei |
Document Transition Report
DocumentTransitionReport
|
false | |
CY2021 | dei |
Entity File Number
EntityFileNumber
|
001-06033 | |
CY2021 | dei |
Entity Registrant Name
EntityRegistrantName
|
United Airlines Holdings, Inc. | |
CY2021 | dei |
Entity Incorporation State Country Code
EntityIncorporationStateCountryCode
|
DE | |
CY2021 | dei |
Entity Tax Identification Number
EntityTaxIdentificationNumber
|
36-2675207 | |
CY2021 | dei |
Entity Address Address Line1
EntityAddressAddressLine1
|
233 South Wacker Drive, | |
CY2021 | dei |
Entity Address City Or Town
EntityAddressCityOrTown
|
Chicago, | |
CY2021 | dei |
Entity Address State Or Province
EntityAddressStateOrProvince
|
IL | |
CY2022Q1 | dei |
Entity Common Stock Shares Outstanding
EntityCommonStockSharesOutstanding
|
324626332 | shares |
CY2021 | dei |
Entity Address Postal Zip Code
EntityAddressPostalZipCode
|
60606 | |
CY2021 | dei |
City Area Code
CityAreaCode
|
(872) | |
CY2021 | dei |
Local Phone Number
LocalPhoneNumber
|
825-4000 | |
CY2021 | dei |
Entity Well Known Seasoned Issuer
EntityWellKnownSeasonedIssuer
|
Yes | |
CY2021 | dei |
Entity Voluntary Filers
EntityVoluntaryFilers
|
No | |
CY2021 | dei |
Entity Current Reporting Status
EntityCurrentReportingStatus
|
Yes | |
CY2021 | dei |
Entity Interactive Data Current
EntityInteractiveDataCurrent
|
Yes | |
CY2021 | dei |
Entity Filer Category
EntityFilerCategory
|
Large Accelerated Filer | |
CY2021 | dei |
Entity Small Business
EntitySmallBusiness
|
false | |
CY2021 | dei |
Entity Emerging Growth Company
EntityEmergingGrowthCompany
|
false | |
CY2021 | dei |
Icfr Auditor Attestation Flag
IcfrAuditorAttestationFlag
|
true | |
CY2021 | dei |
Entity Shell Company
EntityShellCompany
|
false | |
CY2021Q2 | dei |
Entity Public Float
EntityPublicFloat
|
16900000000 | USD |
CY2021 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
24634000000 | USD |
CY2020 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
15355000000 | USD |
CY2019 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
43259000000 | USD |
CY2021 | us-gaap |
Labor And Related Expense
LaborAndRelatedExpense
|
9566000000 | USD |
CY2020 | us-gaap |
Labor And Related Expense
LaborAndRelatedExpense
|
9522000000 | USD |
CY2019 | us-gaap |
Labor And Related Expense
LaborAndRelatedExpense
|
12071000000 | USD |
CY2021 | us-gaap |
Fuel Costs
FuelCosts
|
5755000000 | USD |
CY2020 | us-gaap |
Fuel Costs
FuelCosts
|
3153000000 | USD |
CY2019 | us-gaap |
Fuel Costs
FuelCosts
|
8953000000 | USD |
CY2021 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
2485000000 | USD |
CY2020 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
2488000000 | USD |
CY2019 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
2288000000 | USD |
CY2021 | us-gaap |
Landing Fees And Other Rentals
LandingFeesAndOtherRentals
|
2416000000 | USD |
CY2020 | us-gaap |
Landing Fees And Other Rentals
LandingFeesAndOtherRentals
|
2127000000 | USD |
CY2019 | us-gaap |
Landing Fees And Other Rentals
LandingFeesAndOtherRentals
|
2543000000 | USD |
CY2021 | us-gaap |
Airline Capacity Purchase Arrangements
AirlineCapacityPurchaseArrangements
|
2147000000 | USD |
CY2020 | us-gaap |
Airline Capacity Purchase Arrangements
AirlineCapacityPurchaseArrangements
|
2039000000 | USD |
CY2019 | us-gaap |
Restructuring Settlement And Impairment Provisions
RestructuringSettlementAndImpairmentProvisions
|
246000000 | USD |
CY2021 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
4433000000 | USD |
CY2019 | us-gaap |
Airline Capacity Purchase Arrangements
AirlineCapacityPurchaseArrangements
|
2849000000 | USD |
CY2021 | us-gaap |
Aircraft Maintenance Materials And Repairs
AircraftMaintenanceMaterialsAndRepairs
|
1316000000 | USD |
CY2020 | us-gaap |
Aircraft Maintenance Materials And Repairs
AircraftMaintenanceMaterialsAndRepairs
|
858000000 | USD |
CY2019 | us-gaap |
Aircraft Maintenance Materials And Repairs
AircraftMaintenanceMaterialsAndRepairs
|
1794000000 | USD |
CY2021 | us-gaap |
Selling Expense
SellingExpense
|
677000000 | USD |
CY2020 | us-gaap |
Selling Expense
SellingExpense
|
459000000 | USD |
CY2019 | us-gaap |
Selling Expense
SellingExpense
|
1651000000 | USD |
CY2021 | us-gaap |
Aircraft Rental
AircraftRental
|
228000000 | USD |
CY2020 | us-gaap |
Aircraft Rental
AircraftRental
|
198000000 | USD |
CY2019 | us-gaap |
Aircraft Rental
AircraftRental
|
288000000 | USD |
CY2021 | us-gaap |
Restructuring Settlement And Impairment Provisions
RestructuringSettlementAndImpairmentProvisions
|
-3367000000 | USD |
CY2020 | us-gaap |
Restructuring Settlement And Impairment Provisions
RestructuringSettlementAndImpairmentProvisions
|
-2616000000 | USD |
CY2020 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
3486000000 | USD |
CY2019 | us-gaap |
Other Cost And Expense Operating
OtherCostAndExpenseOperating
|
6275000000 | USD |
CY2021 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
25656000000 | USD |
CY2020 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
21714000000 | USD |
CY2019 | us-gaap |
Costs And Expenses
CostsAndExpenses
|
38958000000 | USD |
CY2021 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-1022000000 | USD |
CY2020 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
-6359000000 | USD |
CY2019 | us-gaap |
Operating Income Loss
OperatingIncomeLoss
|
4301000000 | USD |
CY2021 | us-gaap |
Interest Costs Incurred
InterestCostsIncurred
|
1657000000 | USD |
CY2020 | us-gaap |
Interest Costs Incurred
InterestCostsIncurred
|
1063000000 | USD |
CY2019 | us-gaap |
Interest Costs Incurred
InterestCostsIncurred
|
731000000 | USD |
CY2021 | us-gaap |
Interest Costs Capitalized Adjustment
InterestCostsCapitalizedAdjustment
|
80000000 | USD |
CY2020 | us-gaap |
Interest Costs Capitalized Adjustment
InterestCostsCapitalizedAdjustment
|
71000000 | USD |
CY2019 | us-gaap |
Interest Costs Capitalized Adjustment
InterestCostsCapitalizedAdjustment
|
85000000 | USD |
CY2021 | us-gaap |
Investment Income Interest
InvestmentIncomeInterest
|
36000000 | USD |
CY2020 | us-gaap |
Investment Income Interest
InvestmentIncomeInterest
|
50000000 | USD |
CY2019 | us-gaap |
Investment Income Interest
InvestmentIncomeInterest
|
133000000 | USD |
CY2021 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
-34000000 | USD |
CY2020 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
-194000000 | USD |
CY2019 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
153000000 | USD |
CY2021 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
40000000 | USD |
CY2020 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-1327000000 | USD |
CY2019 | us-gaap |
Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
|
-27000000 | USD |
CY2021 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-1535000000 | USD |
CY2020 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-2463000000 | USD |
CY2019 | us-gaap |
Nonoperating Income Expense
NonoperatingIncomeExpense
|
-387000000 | USD |
CY2021 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
-2557000000 | USD |
CY2020 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
-8822000000 | USD |
CY2019 | us-gaap |
Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest
IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
|
3914000000 | USD |
CY2021 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-593000000 | USD |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-1753000000 | USD |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
905000000 | USD |
CY2021 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1964000000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-7069000000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
3009000000 | USD |
CY2021 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-6.10 | |
CY2020 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-25.30 | |
CY2020 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-25.30 | |
CY2019 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
11.63 | |
CY2019 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
11.63 | |
CY2021 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-6.10 | |
CY2020 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-25.30 | |
CY2020 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-25.30 | |
CY2019 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
11.58 | |
CY2019 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
11.58 | |
CY2021 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1964000000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-7069000000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
3009000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-199000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
421000000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax
OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
|
-80000000 | USD |
CY2021 | ual |
Other Comprehensive Income Investments And Other Net Of Tax
OtherComprehensiveIncomeInvestmentsAndOtherNetOfTax
|
-2000000 | USD |
CY2020 | ual |
Other Comprehensive Income Investments And Other Net Of Tax
OtherComprehensiveIncomeInvestmentsAndOtherNetOfTax
|
0 | USD |
CY2019 | ual |
Other Comprehensive Income Investments And Other Net Of Tax
OtherComprehensiveIncomeInvestmentsAndOtherNetOfTax
|
5000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
197000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-421000000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
85000000 | USD |
CY2021 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-1767000000 | USD |
CY2020 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
-7490000000 | USD |
CY2019 | us-gaap |
Comprehensive Income Net Of Tax
ComprehensiveIncomeNetOfTax
|
3094000000 | USD |
CY2021Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
18283000000 | USD |
CY2020Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
11269000000 | USD |
CY2021Q4 | us-gaap |
Short Term Investments
ShortTermInvestments
|
123000000 | USD |
CY2020Q4 | us-gaap |
Short Term Investments
ShortTermInvestments
|
414000000 | USD |
CY2021Q4 | us-gaap |
Restricted Cash Current
RestrictedCashCurrent
|
37000000 | USD |
CY2020Q4 | us-gaap |
Restricted Cash Current
RestrictedCashCurrent
|
255000000 | USD |
CY2021Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
28000000 | USD |
CY2020Q4 | us-gaap |
Allowance For Doubtful Accounts Receivable Current
AllowanceForDoubtfulAccountsReceivableCurrent
|
78000000 | USD |
CY2021Q4 | us-gaap |
Receivables Net Current
ReceivablesNetCurrent
|
1663000000 | USD |
CY2020Q4 | us-gaap |
Receivables Net Current
ReceivablesNetCurrent
|
1295000000 | USD |
CY2021Q4 | us-gaap |
Airline Related Inventory Valuation Reserves
AirlineRelatedInventoryValuationReserves
|
546000000 | USD |
CY2020Q4 | us-gaap |
Airline Related Inventory Valuation Reserves
AirlineRelatedInventoryValuationReserves
|
478000000 | USD |
CY2021Q4 | us-gaap |
Airline Related Inventory Net
AirlineRelatedInventoryNet
|
983000000 | USD |
CY2020Q4 | us-gaap |
Airline Related Inventory Net
AirlineRelatedInventoryNet
|
932000000 | USD |
CY2021Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
745000000 | USD |
CY2020Q4 | us-gaap |
Prepaid Expense And Other Assets Current
PrepaidExpenseAndOtherAssetsCurrent
|
635000000 | USD |
CY2021Q4 | us-gaap |
Assets Current
AssetsCurrent
|
21834000000 | USD |
CY2020Q4 | us-gaap |
Assets Current
AssetsCurrent
|
14800000000 | USD |
CY2021Q4 | us-gaap |
Flight Equipment Gross
FlightEquipmentGross
|
39584000000 | USD |
CY2020Q4 | us-gaap |
Flight Equipment Gross
FlightEquipmentGross
|
38218000000 | USD |
CY2021Q4 | us-gaap |
Property Plant And Equipment Other
PropertyPlantAndEquipmentOther
|
8764000000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment Other
PropertyPlantAndEquipmentOther
|
8511000000 | USD |
CY2021Q4 | us-gaap |
Deposits On Flight Equipment
DepositsOnFlightEquipment
|
2215000000 | USD |
CY2020Q4 | us-gaap |
Deposits On Flight Equipment
DepositsOnFlightEquipment
|
1166000000 | USD |
CY2021Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
|
50563000000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization
|
47895000000 | USD |
CY2021Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization
|
18489000000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization
|
16429000000 | USD |
CY2021Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
|
32074000000 | USD |
CY2020Q4 | us-gaap |
Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization
PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
|
31466000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
4645000000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
|
4537000000 | USD |
CY2021Q4 | us-gaap |
Goodwill
Goodwill
|
4527000000 | USD |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
4527000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
1544000000 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
1495000000 | USD |
CY2021Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
2803000000 | USD |
CY2020Q4 | us-gaap |
Intangible Assets Net Excluding Goodwill
IntangibleAssetsNetExcludingGoodwill
|
2838000000 | USD |
CY2021Q4 | us-gaap |
Restricted Cash Noncurrent
RestrictedCashNoncurrent
|
213000000 | USD |
CY2020Q4 | us-gaap |
Restricted Cash Noncurrent
RestrictedCashNoncurrent
|
218000000 | USD |
CY2021Q4 | us-gaap |
Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
|
659000000 | USD |
CY2020Q4 | us-gaap |
Deferred Income Tax Assets Net
DeferredIncomeTaxAssetsNet
|
131000000 | USD |
CY2021Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
622000000 | USD |
CY2020Q4 | us-gaap |
Financing Receivable Allowance For Credit Losses
FinancingReceivableAllowanceForCreditLosses
|
522000000 | USD |
CY2021Q4 | us-gaap |
Notes And Loans Receivable Net Noncurrent
NotesAndLoansReceivableNetNoncurrent
|
76000000 | USD |
CY2020Q4 | us-gaap |
Notes And Loans Receivable Net Noncurrent
NotesAndLoansReceivableNetNoncurrent
|
31000000 | USD |
CY2021Q4 | us-gaap |
Investments And Other Noncurrent Assets
InvestmentsAndOtherNoncurrentAssets
|
1344000000 | USD |
CY2020Q4 | us-gaap |
Investments And Other Noncurrent Assets
InvestmentsAndOtherNoncurrentAssets
|
1000000000 | USD |
CY2021Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
9622000000 | USD |
CY2020Q4 | us-gaap |
Other Assets Noncurrent
OtherAssetsNoncurrent
|
8745000000 | USD |
CY2021Q4 | us-gaap |
Assets
Assets
|
68175000000 | USD |
CY2020Q4 | us-gaap |
Assets
Assets
|
59548000000 | USD |
CY2021Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
2562000000 | USD |
CY2020Q4 | us-gaap |
Accounts Payable Current
AccountsPayableCurrent
|
1595000000 | USD |
CY2021Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
2121000000 | USD |
CY2020Q4 | us-gaap |
Employee Related Liabilities Current
EmployeeRelatedLiabilitiesCurrent
|
1960000000 | USD |
CY2021Q4 | ual |
Contract With Customer Liability Current Advance Ticket Sales
ContractWithCustomerLiabilityCurrentAdvanceTicketSales
|
6354000000 | USD |
CY2020Q4 | ual |
Contract With Customer Liability Current Advance Ticket Sales
ContractWithCustomerLiabilityCurrentAdvanceTicketSales
|
4833000000 | USD |
CY2021Q4 | ual |
Contract With Customer Liability Current Frequent Flyer
ContractWithCustomerLiabilityCurrentFrequentFlyer
|
2239000000 | USD |
CY2020Q4 | ual |
Contract With Customer Liability Current Frequent Flyer
ContractWithCustomerLiabilityCurrentFrequentFlyer
|
908000000 | USD |
CY2021Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
3002000000 | USD |
CY2020Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
1911000000 | USD |
CY2021Q4 | ual |
Other Financial Liabilities Current
OtherFinancialLiabilitiesCurrent
|
834000000 | USD |
CY2020Q4 | ual |
Other Financial Liabilities Current
OtherFinancialLiabilitiesCurrent
|
18000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
556000000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
612000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
|
76000000 | USD |
CY2020Q4 | us-gaap |
Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
|
182000000 | USD |
CY2021Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
560000000 | USD |
CY2020Q4 | us-gaap |
Other Liabilities Current
OtherLiabilitiesCurrent
|
706000000 | USD |
CY2021Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
18304000000 | USD |
CY2020Q4 | us-gaap |
Liabilities Current
LiabilitiesCurrent
|
12725000000 | USD |
CY2021Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
30361000000 | USD |
CY2020Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
24836000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
5152000000 | USD |
CY2020Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
4986000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
|
219000000 | USD |
CY2020Q4 | us-gaap |
Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
|
224000000 | USD |
CY2021Q4 | ual |
Contract With Customer Liability Noncurrent Frequent Flyer
ContractWithCustomerLiabilityNoncurrentFrequentFlyer
|
4043000000 | USD |
CY2020Q4 | ual |
Contract With Customer Liability Noncurrent Frequent Flyer
ContractWithCustomerLiabilityNoncurrentFrequentFlyer
|
5067000000 | USD |
CY2021Q4 | us-gaap |
Defined Benefit Pension Plan Liabilities Noncurrent
DefinedBenefitPensionPlanLiabilitiesNoncurrent
|
1920000000 | USD |
CY2020Q4 | us-gaap |
Defined Benefit Pension Plan Liabilities Noncurrent
DefinedBenefitPensionPlanLiabilitiesNoncurrent
|
2460000000 | USD |
CY2021Q4 | us-gaap |
Other Postretirement Defined Benefit Plan Liabilities Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent
|
1000000000 | USD |
CY2020Q4 | us-gaap |
Other Postretirement Defined Benefit Plan Liabilities Noncurrent
OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent
|
994000000 | USD |
CY2021Q4 | ual |
Other Financial Liabilities Noncurrent
OtherFinancialLiabilitiesNoncurrent
|
863000000 | USD |
CY2020Q4 | ual |
Other Financial Liabilities Noncurrent
OtherFinancialLiabilitiesNoncurrent
|
1140000000 | USD |
CY2021Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
1284000000 | USD |
CY2020Q4 | us-gaap |
Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
|
1156000000 | USD |
CY2021Q4 | ual |
Other Liabilities And Deferred Credits Noncurrent
OtherLiabilitiesAndDeferredCreditsNoncurrent
|
9110000000 | USD |
CY2020Q4 | ual |
Other Liabilities And Deferred Credits Noncurrent
OtherLiabilitiesAndDeferredCreditsNoncurrent
|
10817000000 | USD |
CY2021Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
CY2020Q4 | us-gaap |
Commitments And Contingencies
CommitmentsAndContingencies
|
USD | |
CY2021Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
0 | USD |
CY2020Q4 | us-gaap |
Preferred Stock Value
PreferredStockValue
|
0 | USD |
CY2020Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.01 | |
CY2021Q4 | us-gaap |
Common Stock Par Or Stated Value Per Share
CommonStockParOrStatedValuePerShare
|
0.01 | |
CY2021Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1000000000 | shares |
CY2020Q4 | us-gaap |
Common Stock Shares Authorized
CommonStockSharesAuthorized
|
1000000000 | shares |
CY2021Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
323810825 | shares |
CY2020Q4 | us-gaap |
Common Stock Shares Outstanding
CommonStockSharesOutstanding
|
311845232 | shares |
CY2021Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
4000000 | USD |
CY2020Q4 | us-gaap |
Common Stock Value
CommonStockValue
|
4000000 | USD |
CY2021Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
9156000000 | USD |
CY2020Q4 | us-gaap |
Additional Paid In Capital Common Stock
AdditionalPaidInCapitalCommonStock
|
8366000000 | USD |
CY2021Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
3814000000 | USD |
CY2020Q4 | us-gaap |
Treasury Stock Value
TreasuryStockValue
|
3897000000 | USD |
CY2021Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
625000000 | USD |
CY2020Q4 | us-gaap |
Retained Earnings Accumulated Deficit
RetainedEarningsAccumulatedDeficit
|
2626000000 | USD |
CY2021Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-942000000 | USD |
CY2020Q4 | us-gaap |
Accumulated Other Comprehensive Income Loss Net Of Tax
AccumulatedOtherComprehensiveIncomeLossNetOfTax
|
-1139000000 | USD |
CY2021Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
5029000000 | USD |
CY2020Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
5960000000 | USD |
CY2021Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
68175000000 | USD |
CY2020Q4 | us-gaap |
Liabilities And Stockholders Equity
LiabilitiesAndStockholdersEquity
|
59548000000 | USD |
CY2021 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1964000000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-7069000000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
3009000000 | USD |
CY2021 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-583000000 | USD |
CY2020 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-1741000000 | USD |
CY2020 | us-gaap |
Restructuring Costs And Asset Impairment Charges
RestructuringCostsAndAssetImpairmentCharges
|
1448000000 | USD |
CY2019 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
882000000 | USD |
CY2021 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
2485000000 | USD |
CY2020 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
2488000000 | USD |
CY2019 | us-gaap |
Depreciation Depletion And Amortization
DepreciationDepletionAndAmortization
|
2288000000 | USD |
CY2021 | us-gaap |
Restructuring Costs And Asset Impairment Charges
RestructuringCostsAndAssetImpairmentCharges
|
32000000 | USD |
CY2019 | us-gaap |
Restructuring Costs And Asset Impairment Charges
RestructuringCostsAndAssetImpairmentCharges
|
175000000 | USD |
CY2021 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
-34000000 | USD |
CY2020 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
-194000000 | USD |
CY2019 | us-gaap |
Unrealized Gain Loss On Investments
UnrealizedGainLossOnInvestments
|
153000000 | USD |
CY2021 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
393000000 | USD |
CY2020 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
320000000 | USD |
CY2019 | us-gaap |
Other Operating Activities Cash Flow Statement
OtherOperatingActivitiesCashFlowStatement
|
185000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
448000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-135000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Receivables
IncreaseDecreaseInReceivables
|
-44000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
292000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
-484000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Other Operating Assets
IncreaseDecreaseInOtherOperatingAssets
|
252000000 | USD |
CY2021 | ual |
Increase Decrease In Contract With Customer Liability Advance Ticket Sales
IncreaseDecreaseInContractWithCustomerLiabilityAdvanceTicketSales
|
1521000000 | USD |
CY2020 | ual |
Increase Decrease In Contract With Customer Liability Advance Ticket Sales
IncreaseDecreaseInContractWithCustomerLiabilityAdvanceTicketSales
|
14000000 | USD |
CY2019 | ual |
Increase Decrease In Contract With Customer Liability Advance Ticket Sales
IncreaseDecreaseInContractWithCustomerLiabilityAdvanceTicketSales
|
438000000 | USD |
CY2021 | ual |
Increase Decreasein Contractwith Customer Liability Frequent Flyer
IncreaseDecreaseinContractwithCustomerLiabilityFrequentFlyer
|
307000000 | USD |
CY2020 | ual |
Increase Decreasein Contractwith Customer Liability Frequent Flyer
IncreaseDecreaseinContractwithCustomerLiabilityFrequentFlyer
|
699000000 | USD |
CY2019 | ual |
Increase Decreasein Contractwith Customer Liability Frequent Flyer
IncreaseDecreaseinContractwithCustomerLiabilityFrequentFlyer
|
271000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
985000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
-1079000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Accounts Payable
IncreaseDecreaseInAccountsPayable
|
324000000 | USD |
CY2021 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
-403000000 | USD |
CY2020 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
-26000000 | USD |
CY2019 | us-gaap |
Increase Decrease In Other Operating Liabilities
IncreaseDecreaseInOtherOperatingLiabilities
|
-302000000 | USD |
CY2021 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
2067000000 | USD |
CY2020 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
-4133000000 | USD |
CY2019 | us-gaap |
Net Cash Provided By Used In Operating Activities
NetCashProvidedByUsedInOperatingActivities
|
6909000000 | USD |
CY2021 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
2107000000 | USD |
CY2020 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
1727000000 | USD |
CY2019 | us-gaap |
Payments To Acquire Productive Assets
PaymentsToAcquireProductiveAssets
|
4528000000 | USD |
CY2021 | us-gaap |
Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
|
68000000 | USD |
CY2020 | us-gaap |
Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
|
552000000 | USD |
CY2019 | us-gaap |
Payments To Acquire Short Term Investments
PaymentsToAcquireShortTermInvestments
|
2933000000 | USD |
CY2021 | us-gaap |
Proceeds From Sale Maturity And Collections Of Investments
ProceedsFromSaleMaturityAndCollectionsOfInvestments
|
397000000 | USD |
CY2020 | us-gaap |
Proceeds From Sale Maturity And Collections Of Investments
ProceedsFromSaleMaturityAndCollectionsOfInvestments
|
2319000000 | USD |
CY2019 | us-gaap |
Proceeds From Sale Maturity And Collections Of Investments
ProceedsFromSaleMaturityAndCollectionsOfInvestments
|
2996000000 | USD |
CY2021 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
107000000 | USD |
CY2020 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
6000000 | USD |
CY2019 | us-gaap |
Proceeds From Sale Of Property Plant And Equipment
ProceedsFromSaleOfPropertyPlantAndEquipment
|
49000000 | USD |
CY2021 | us-gaap |
Payments To Acquire Loans Receivable
PaymentsToAcquireLoansReceivable
|
0 | USD |
CY2020 | us-gaap |
Payments To Acquire Loans Receivable
PaymentsToAcquireLoansReceivable
|
0 | USD |
CY2019 | us-gaap |
Payments To Acquire Loans Receivable
PaymentsToAcquireLoansReceivable
|
174000000 | USD |
CY2021 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
1000000 | USD |
CY2020 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-4000000 | USD |
CY2019 | us-gaap |
Payments For Proceeds From Other Investing Activities
PaymentsForProceedsFromOtherInvestingActivities
|
-30000000 | USD |
CY2021 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-1672000000 | USD |
CY2020 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
50000000 | USD |
CY2019 | us-gaap |
Net Cash Provided By Used In Investing Activities
NetCashProvidedByUsedInInvestingActivities
|
-4560000000 | USD |
CY2021 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
0 | USD |
CY2020 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
353000000 | USD |
CY2019 | us-gaap |
Payments For Repurchase Of Common Stock
PaymentsForRepurchaseOfCommonStock
|
1645000000 | USD |
CY2021 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
11096000000 | USD |
CY2020 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
15676000000 | USD |
CY2019 | us-gaap |
Proceeds From Issuance Of Long Term Debt
ProceedsFromIssuanceOfLongTermDebt
|
1786000000 | USD |
CY2021 | us-gaap |
Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
|
532000000 | USD |
CY2020 | us-gaap |
Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
|
2103000000 | USD |
CY2019 | us-gaap |
Proceeds From Issuance Or Sale Of Equity
ProceedsFromIssuanceOrSaleOfEquity
|
0 | USD |
CY2021 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
5205000000 | USD |
CY2020 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
4449000000 | USD |
CY2019 | us-gaap |
Repayments Of Long Term Debt
RepaymentsOfLongTermDebt
|
1391000000 | USD |
CY2021 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-27000000 | USD |
CY2020 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-20000000 | USD |
CY2019 | us-gaap |
Proceeds From Payments For Other Financing Activities
ProceedsFromPaymentsForOtherFinancingActivities
|
-30000000 | USD |
CY2021 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
6396000000 | USD |
CY2020 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
12957000000 | USD |
CY2019 | us-gaap |
Net Cash Provided By Used In Financing Activities
NetCashProvidedByUsedInFinancingActivities
|
-1280000000 | USD |
CY2021 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
6791000000 | USD |
CY2020 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
8874000000 | USD |
CY2019 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
|
1069000000 | USD |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
11742000000 | USD |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
2868000000 | USD |
CY2018Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
1799000000 | USD |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
18533000000 | USD |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
11742000000 | USD |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
2868000000 | USD |
CY2021 | us-gaap |
Noncash Or Part Noncash Acquisition Fixed Assets Acquired1
NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
|
814000000 | USD |
CY2020 | us-gaap |
Noncash Or Part Noncash Acquisition Fixed Assets Acquired1
NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
|
1968000000 | USD |
CY2019 | us-gaap |
Noncash Or Part Noncash Acquisition Fixed Assets Acquired1
NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1
|
515000000 | USD |
CY2021 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
771000000 | USD |
CY2020 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
198000000 | USD |
CY2019 | us-gaap |
Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
|
498000000 | USD |
CY2021 | us-gaap |
Consideration Received For Beneficial Interest Obtained For Transferring Financial Asset
ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset
|
164000000 | USD |
CY2020 | us-gaap |
Consideration Received For Beneficial Interest Obtained For Transferring Financial Asset
ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset
|
0 | USD |
CY2019 | us-gaap |
Consideration Received For Beneficial Interest Obtained For Transferring Financial Asset
ConsiderationReceivedForBeneficialInterestObtainedForTransferringFinancialAsset
|
0 | USD |
CY2021 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Received1
OtherSignificantNoncashTransactionValueOfConsiderationReceived1
|
131000000 | USD |
CY2020 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Received1
OtherSignificantNoncashTransactionValueOfConsiderationReceived1
|
0 | USD |
CY2019 | us-gaap |
Other Significant Noncash Transaction Value Of Consideration Received1
OtherSignificantNoncashTransactionValueOfConsiderationReceived1
|
0 | USD |
CY2021 | ual |
Lease Conversions From Operating Lease Recorded Property Plant And Equipment
LeaseConversionsFromOperatingLeaseRecordedPropertyPlantAndEquipment
|
123000000 | USD |
CY2020 | ual |
Lease Conversions From Operating Lease Recorded Property Plant And Equipment
LeaseConversionsFromOperatingLeaseRecordedPropertyPlantAndEquipment
|
527000000 | USD |
CY2021 | us-gaap |
Interest Paid Net
InterestPaidNet
|
1424000000 | USD |
CY2020 | us-gaap |
Interest Paid Net
InterestPaidNet
|
874000000 | USD |
CY2019 | ual |
Lease Conversions From Operating Lease Recorded Property Plant And Equipment
LeaseConversionsFromOperatingLeaseRecordedPropertyPlantAndEquipment
|
-2000000 | USD |
CY2019 | us-gaap |
Interest Paid Net
InterestPaidNet
|
648000000 | USD |
CY2021 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
0 | USD |
CY2020 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
-29000000 | USD |
CY2019 | us-gaap |
Income Taxes Paid Net
IncomeTaxesPaidNet
|
29000000 | USD |
CY2018Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
10042000000 | USD |
CY2019 | us-gaap |
Net Income Loss
NetIncomeLoss
|
3009000000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
85000000 | USD |
CY2019 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
66000000 | USD |
CY2019 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
1641000000 | USD |
CY2019 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
-30000000 | USD |
CY2019Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
11531000000 | USD |
CY2020 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-7069000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
-421000000 | USD |
CY2020 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
97000000 | USD |
CY2020 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
2103000000 | USD |
CY2020 | us-gaap |
Treasury Stock Value Acquired Cost Method
TreasuryStockValueAcquiredCostMethod
|
342000000 | USD |
CY2020 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
-19000000 | USD |
CY2020 | us-gaap |
Adjustments To Additional Paid In Capital Warrant Issued
AdjustmentsToAdditionalPaidInCapitalWarrantIssued
|
97000000 | USD |
CY2020Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
5960000000 | USD |
CY2021 | us-gaap |
Net Income Loss
NetIncomeLoss
|
-1964000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Net Of Tax
OtherComprehensiveIncomeLossNetOfTax
|
197000000 | USD |
CY2021 | us-gaap |
Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value
AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue
|
232000000 | USD |
CY2021 | us-gaap |
Adjustments To Additional Paid In Capital Warrant Issued
AdjustmentsToAdditionalPaidInCapitalWarrantIssued
|
99000000 | USD |
CY2021 | us-gaap |
Stock Issued During Period Value New Issues
StockIssuedDuringPeriodValueNewIssues
|
532000000 | USD |
CY2021 | us-gaap |
Stock Issued During Period Value Share Based Compensation
StockIssuedDuringPeriodValueShareBasedCompensation
|
-27000000 | USD |
CY2021Q4 | us-gaap |
Stockholders Equity
StockholdersEquity
|
5029000000 | USD |
CY2021 | us-gaap |
Use Of Estimates
UseOfEstimates
|
<span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%;padding-left:24.91pt">Use of Estimates—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America ("GAAP") requires management to make estimates and assumptions that affect the amounts reported in these financial statements and accompanying notes. Actual results could differ from those estimates.</span> | |
CY2021 | ual |
Refundable Tickets Expiration Period
RefundableTicketsExpirationPeriod
|
P1Y | |
CY2021 | us-gaap |
Number Of Operating Segments
NumberOfOperatingSegments
|
1 | segment |
CY2021 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
24634000000 | USD |
CY2020 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
15355000000 | USD |
CY2019 | us-gaap |
Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
|
43259000000 | USD |
CY2021 | us-gaap |
Revenue Performance Obligation Description Of Timing
RevenuePerformanceObligationDescriptionOfTiming
|
two years | |
CY2021Q4 | us-gaap |
Secured Debt
SecuredDebt
|
6800000000 | USD |
CY2021Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
18283000000 | USD |
CY2020Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
11269000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Two
FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
|
37000000 | USD |
CY2019Q4 | us-gaap |
Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
|
2762000000 | USD |
CY2021Q4 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
37000000 | USD |
CY2020Q4 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
255000000 | USD |
CY2019Q4 | us-gaap |
Restricted Cash And Cash Equivalents At Carrying Value
RestrictedCashAndCashEquivalentsAtCarryingValue
|
0 | USD |
CY2021Q4 | us-gaap |
Restricted Cash And Cash Equivalents Noncurrent
RestrictedCashAndCashEquivalentsNoncurrent
|
213000000 | USD |
CY2020Q4 | us-gaap |
Restricted Cash And Cash Equivalents Noncurrent
RestrictedCashAndCashEquivalentsNoncurrent
|
218000000 | USD |
CY2019Q4 | us-gaap |
Restricted Cash And Cash Equivalents Noncurrent
RestrictedCashAndCashEquivalentsNoncurrent
|
106000000 | USD |
CY2021Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
18533000000 | USD |
CY2020Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
11742000000 | USD |
CY2019Q4 | us-gaap |
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
|
2868000000 | USD |
CY2021Q4 | us-gaap |
Capitalized Computer Software Gross
CapitalizedComputerSoftwareGross
|
499000000 | USD |
CY2020Q4 | us-gaap |
Capitalized Computer Software Gross
CapitalizedComputerSoftwareGross
|
548000000 | USD |
CY2021 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
97000000 | USD |
CY2020 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
94000000 | USD |
CY2019 | us-gaap |
Impairment Of Long Lived Assets Held For Use
ImpairmentOfLongLivedAssetsHeldForUse
|
81000000 | USD |
CY2021Q4 | us-gaap |
Goodwill
Goodwill
|
4527000000 | USD |
CY2020Q4 | us-gaap |
Goodwill
Goodwill
|
4527000000 | USD |
CY2021Q4 | us-gaap |
Indefinite Lived Intangible Assets Excluding Goodwill
IndefiniteLivedIntangibleAssetsExcludingGoodwill
|
2591000000 | USD |
CY2020Q4 | us-gaap |
Indefinite Lived Intangible Assets Excluding Goodwill
IndefiniteLivedIntangibleAssetsExcludingGoodwill
|
2577000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
1756000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
1544000000 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Gross
FiniteLivedIntangibleAssetsGross
|
1756000000 | USD |
CY2020Q4 | us-gaap |
Finite Lived Intangible Assets Accumulated Amortization
FiniteLivedIntangibleAssetsAccumulatedAmortization
|
1495000000 | USD |
CY2021 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
49000000 | USD |
CY2020 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
55000000 | USD |
CY2019 | us-gaap |
Amortization Of Intangible Assets
AmortizationOfIntangibleAssets
|
60000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Next Twelve Months
FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths
|
40000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Three
FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
|
32000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Four
FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
|
28000000 | USD |
CY2021Q4 | us-gaap |
Finite Lived Intangible Assets Amortization Expense Year Five
FiniteLivedIntangibleAssetsAmortizationExpenseYearFive
|
18000000 | USD |
CY2021 | us-gaap |
Advertising Expense
AdvertisingExpense
|
99000000 | USD |
CY2020 | us-gaap |
Advertising Expense
AdvertisingExpense
|
87000000 | USD |
CY2019 | us-gaap |
Advertising Expense
AdvertisingExpense
|
212000000 | USD |
CY2021Q4 | us-gaap |
Class Of Warrant Or Right Outstanding
ClassOfWarrantOrRightOutstanding
|
10000000.0 | shares |
CY2020 | us-gaap |
Proceeds From Issuance Of Common Stock
ProceedsFromIssuanceOfCommonStock
|
1100000000 | USD |
CY2021Q4 | us-gaap |
Common Stock Capital Shares Reserved For Future Issuance
CommonStockCapitalSharesReservedForFutureIssuance
|
6000000 | shares |
CY2021Q4 | us-gaap |
Preferred Stock Shares Outstanding
PreferredStockSharesOutstanding
|
2 | shares |
CY2021Q4 | us-gaap |
Preferred Stock Par Or Stated Value Per Share
PreferredStockParOrStatedValuePerShare
|
0.01 | |
CY2021Q4 | us-gaap |
Preferred Stock Shares Authorized
PreferredStockSharesAuthorized
|
250000000 | shares |
CY2021 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-1964000000 | USD |
CY2020 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
-7069000000 | USD |
CY2019 | us-gaap |
Net Income Loss Available To Common Stockholders Basic
NetIncomeLossAvailableToCommonStockholdersBasic
|
3009000000 | USD |
CY2021 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
321900000 | shares |
CY2020 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
279400000 | shares |
CY2019 | us-gaap |
Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
|
258800000 | shares |
CY2021 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
CY2020 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
0 | shares |
CY2019 | us-gaap |
Incremental Common Shares Attributable To Share Based Payment Arrangements
IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
|
1100000 | shares |
CY2021 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
321900000 | shares |
CY2020 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
279400000 | shares |
CY2019 | us-gaap |
Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
|
259900000 | shares |
CY2021 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-6.10 | |
CY2020 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-25.30 | |
CY2020 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
-25.30 | |
CY2019 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
11.63 | |
CY2019 | us-gaap |
Earnings Per Share Basic
EarningsPerShareBasic
|
11.63 | |
CY2021 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-6.10 | |
CY2020 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-25.30 | |
CY2020 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
-25.30 | |
CY2019 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
11.58 | |
CY2019 | us-gaap |
Earnings Per Share Diluted
EarningsPerShareDiluted
|
11.58 | |
CY2021 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
238000000 | USD |
CY2020 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
108000000 | USD |
CY2019 | us-gaap |
Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
|
100000000 | USD |
CY2021Q4 | us-gaap |
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized
EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
|
66000000 | USD |
CY2021Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
82.12 | |
CY2021Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
|
300000 | shares |
CY2021 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
|
104000000 | USD |
CY2020 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
|
87000000 | USD |
CY2019 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
|
99000000 | USD |
CY2021Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
700000 | shares |
CY2021Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice
|
59.05 | |
CY2021 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2
|
P5Y3M18D | |
CY2021 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1
|
P2Y10M24D | |
CY2021Q4 | us-gaap |
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
|
0 | USD |
CY2021Q4 | us-gaap |
Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
|
0 | USD |
CY2018Q4 | us-gaap |
Aoci Tax Attributable To Parent
AociTaxAttributableToParent
|
136000000 | USD |
CY2019 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Tax
OtherComprehensiveIncomeLossBeforeReclassificationsTax
|
24000000 | USD |
CY2019 | us-gaap |
Oci Before Reclassifications Net Of Tax Attributable To Parent
OciBeforeReclassificationsNetOfTaxAttributableToParent
|
88000000 | USD |
CY2019 | us-gaap |
Reclassification From Aoci Current Period Tax
ReclassificationFromAociCurrentPeriodTax
|
0 | USD |
CY2019 | us-gaap |
Reclassification From Aoci Current Period Net Of Tax Attributable To Parent
ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
|
3000000 | USD |
CY2019Q4 | us-gaap |
Aoci Tax Attributable To Parent
AociTaxAttributableToParent
|
160000000 | USD |
CY2020 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Tax
OtherComprehensiveIncomeLossBeforeReclassificationsTax
|
-221000000 | USD |
CY2020 | us-gaap |
Oci Before Reclassifications Net Of Tax Attributable To Parent
OciBeforeReclassificationsNetOfTaxAttributableToParent
|
-772000000 | USD |
CY2020 | us-gaap |
Reclassification From Aoci Current Period Tax
ReclassificationFromAociCurrentPeriodTax
|
-100000000 | USD |
CY2020 | us-gaap |
Reclassification From Aoci Current Period Net Of Tax Attributable To Parent
ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
|
-351000000 | USD |
CY2020Q4 | us-gaap |
Aoci Tax Attributable To Parent
AociTaxAttributableToParent
|
39000000 | USD |
CY2021 | us-gaap |
Other Comprehensive Income Loss Before Reclassifications Tax
OtherComprehensiveIncomeLossBeforeReclassificationsTax
|
53000000 | USD |
CY2021 | us-gaap |
Oci Before Reclassifications Net Of Tax Attributable To Parent
OciBeforeReclassificationsNetOfTaxAttributableToParent
|
184000000 | USD |
CY2021 | us-gaap |
Reclassification From Aoci Current Period Tax
ReclassificationFromAociCurrentPeriodTax
|
-3000000 | USD |
CY2021 | us-gaap |
Reclassification From Aoci Current Period Net Of Tax Attributable To Parent
ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent
|
-13000000 | USD |
CY2021Q4 | us-gaap |
Aoci Tax Attributable To Parent
AociTaxAttributableToParent
|
95000000 | USD |
CY2021 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
-537000000 | USD |
CY2020 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
-1852000000 | USD |
CY2019 | us-gaap |
Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate
IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
|
822000000 | USD |
CY2021 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
-34000000 | USD |
CY2020 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
-110000000 | USD |
CY2019 | us-gaap |
Income Tax Reconciliation State And Local Income Taxes
IncomeTaxReconciliationStateAndLocalIncomeTaxes
|
50000000 | USD |
CY2021 | us-gaap |
Income Tax Reconciliation Foreign Income Tax Rate Differential
IncomeTaxReconciliationForeignIncomeTaxRateDifferential
|
0 | USD |
CY2020 | us-gaap |
Income Tax Reconciliation Foreign Income Tax Rate Differential
IncomeTaxReconciliationForeignIncomeTaxRateDifferential
|
0 | USD |
CY2019 | us-gaap |
Income Tax Reconciliation Foreign Income Tax Rate Differential
IncomeTaxReconciliationForeignIncomeTaxRateDifferential
|
-90000000 | USD |
CY2021 | ual |
Effective Income Tax Rate Reconciliation Global Intangible Low Taxed Income Amount
EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeAmount
|
0 | USD |
CY2020 | ual |
Effective Income Tax Rate Reconciliation Global Intangible Low Taxed Income Amount
EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeAmount
|
0 | USD |
CY2019 | ual |
Effective Income Tax Rate Reconciliation Global Intangible Low Taxed Income Amount
EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncomeAmount
|
90000000 | USD |
CY2019 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Meals And Entertainment
IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment
|
12000000 | USD |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-1753000000 | USD |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
905000000 | USD |
CY2021 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
-10000000 | USD |
CY2021 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Meals And Entertainment
IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment
|
7000000 | USD |
CY2020 | us-gaap |
Income Tax Reconciliation Nondeductible Expense Meals And Entertainment
IncomeTaxReconciliationNondeductibleExpenseMealsAndEntertainment
|
5000000 | USD |
CY2021 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-38000000 | USD |
CY2020 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
197000000 | USD |
CY2019 | us-gaap |
Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance
IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
|
-4000000 | USD |
CY2021 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
9000000 | USD |
CY2020 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
7000000 | USD |
CY2019 | us-gaap |
Income Tax Reconciliation Other Adjustments
IncomeTaxReconciliationOtherAdjustments
|
25000000 | USD |
CY2021 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-593000000 | USD |
CY2020 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
-12000000 | USD |
CY2019 | us-gaap |
Current Income Tax Expense Benefit
CurrentIncomeTaxExpenseBenefit
|
23000000 | USD |
CY2021 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-583000000 | USD |
CY2020 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
-1741000000 | USD |
CY2019 | us-gaap |
Deferred Income Tax Expense Benefit
DeferredIncomeTaxExpenseBenefit
|
882000000 | USD |
CY2021 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-593000000 | USD |
CY2020 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
-1753000000 | USD |
CY2019 | us-gaap |
Income Tax Expense Benefit
IncomeTaxExpenseBenefit
|
905000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
2229000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Operating Loss Carryforwards
DeferredTaxAssetsOperatingLossCarryforwards
|
2476000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Deferred Income
DeferredTaxAssetsDeferredIncome
|
2349000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Deferred Income
DeferredTaxAssetsDeferredIncome
|
1409000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
986000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Tax Deferred Expense Compensation And Benefits
DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
|
1103000000 | USD |
CY2021Q4 | ual |
Deferred Tax Asset Leasing Arrangements
DeferredTaxAssetLeasingArrangements
|
1272000000 | USD |
CY2020Q4 | ual |
Deferred Tax Asset Leasing Arrangements
DeferredTaxAssetLeasingArrangements
|
1247000000 | USD |
CY2021Q4 | ual |
Deferred Tax Assets Other Financing Liability
DeferredTaxAssetsOtherFinancingLiability
|
327000000 | USD |
CY2020Q4 | ual |
Deferred Tax Assets Other Financing Liability
DeferredTaxAssetsOtherFinancingLiability
|
260000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
535000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Other
DeferredTaxAssetsOther
|
362000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
210000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Valuation Allowance
DeferredTaxAssetsValuationAllowance
|
247000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
7488000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Net
DeferredTaxAssetsNet
|
6610000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
5122000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Property Plant And Equipment
DeferredTaxLiabilitiesPropertyPlantAndEquipment
|
4789000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Liabilities Leasing Arrangements
DeferredTaxLiabilitiesLeasingArrangements
|
1051000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Leasing Arrangements
DeferredTaxLiabilitiesLeasingArrangements
|
1028000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
656000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets
DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
|
662000000 | USD |
CY2021Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
6829000000 | USD |
CY2020Q4 | us-gaap |
Deferred Income Tax Liabilities
DeferredIncomeTaxLiabilities
|
6479000000 | USD |
CY2021Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
659000000 | USD |
CY2020Q4 | us-gaap |
Deferred Tax Assets Liabilities Net
DeferredTaxAssetsLiabilitiesNet
|
131000000 | USD |
CY2021Q4 | ual |
Capital Loss Carryforwards Valuation Allowance
CapitalLossCarryforwardsValuationAllowance
|
183000000 | USD |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
55000000 | USD |
CY2020Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
57000000 | USD |
CY2019Q4 | us-gaap |
Unrecognized Tax Benefits
UnrecognizedTaxBenefits
|
53000000 | USD |
CY2021Q4 | us-gaap |
Unrecognized Tax Benefits That Would Impact Effective Tax Rate
UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
|
55000000 | USD |
CY2021Q3 | ual |
Defined Benefit Plan Plan Assets Employer Discretionary Contribution Amount
DefinedBenefitPlanPlanAssetsEmployerDiscretionaryContributionAmount
|
375000000 | USD |
CY2021Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
|
6231000000 | USD |
CY2020Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
|
6250000000 | USD |
CY2021Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
|
5255000000 | USD |
CY2020Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
|
5163000000 | USD |
CY2021Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
|
4309000000 | USD |
CY2020Q4 | us-gaap |
Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets
DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
|
3786000000 | USD |
CY2020 | ual |
Defined Benefit Plan Profit Sharing And Payroll Tax Expense
DefinedBenefitPlanProfitSharingAndPayrollTaxExpense
|
0 | USD |
CY2021 | ual |
Defined Benefit Plan Profit Sharing And Payroll Tax Expense
DefinedBenefitPlanProfitSharingAndPayrollTaxExpense
|
0 | USD |
CY2019 | ual |
Defined Benefit Plan Profit Sharing And Payroll Tax Expense
DefinedBenefitPlanProfitSharingAndPayrollTaxExpense
|
491000000 | USD |
CY2021Q4 | us-gaap |
Equity Method Investments
EquityMethodInvestments
|
171000000 | USD |
CY2021Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
33876000000 | USD |
CY2020Q4 | us-gaap |
Debt Instrument Carrying Amount
DebtInstrumentCarryingAmount
|
27301000000 | USD |
CY2021Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net
DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
|
-513000000 | USD |
CY2020Q4 | us-gaap |
Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net
DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet
|
-554000000 | USD |
CY2021Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
3002000000 | USD |
CY2020Q4 | us-gaap |
Long Term Debt Current
LongTermDebtCurrent
|
1911000000 | USD |
CY2021Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
30361000000 | USD |
CY2020Q4 | us-gaap |
Long Term Debt Noncurrent
LongTermDebtNoncurrent
|
24836000000 | USD |
CY2021 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
958000000 | USD |
CY2020 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
933000000 | USD |
CY2019 | us-gaap |
Operating Lease Cost
OperatingLeaseCost
|
1038000000 | USD |
CY2021 | ual |
Variable And Short Term Lease Cost
VariableAndShortTermLeaseCost
|
2291000000 | USD |
CY2020 | ual |
Variable And Short Term Lease Cost
VariableAndShortTermLeaseCost
|
1968000000 | USD |
CY2019 | ual |
Variable And Short Term Lease Cost
VariableAndShortTermLeaseCost
|
2548000000 | USD |
CY2021 | us-gaap |
Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
|
89000000 | USD |
CY2020 | us-gaap |
Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
|
88000000 | USD |
CY2019 | us-gaap |
Finance Lease Right Of Use Asset Amortization
FinanceLeaseRightOfUseAssetAmortization
|
68000000 | USD |
CY2021 | us-gaap |
Finance Lease Interest Expense
FinanceLeaseInterestExpense
|
16000000 | USD |
CY2020 | us-gaap |
Finance Lease Interest Expense
FinanceLeaseInterestExpense
|
16000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Current
FinanceLeaseLiabilityCurrent
|
76000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Liability Noncurrent
OperatingLeaseLiabilityNoncurrent
|
5152000000 | USD |
CY2021 | ual |
Lessee Operating And Finance Lease Not Yet Commenced Term Of Contract
LesseeOperatingAndFinanceLeaseNotYetCommencedTermOfContract
|
P12Y | |
CY2019 | us-gaap |
Finance Lease Interest Expense
FinanceLeaseInterestExpense
|
85000000 | USD |
CY2021 | us-gaap |
Sublease Income
SubleaseIncome
|
26000000 | USD |
CY2020 | us-gaap |
Sublease Income
SubleaseIncome
|
23000000 | USD |
CY2019 | us-gaap |
Sublease Income
SubleaseIncome
|
32000000 | USD |
CY2021 | us-gaap |
Lease Cost
LeaseCost
|
3328000000 | USD |
CY2020 | us-gaap |
Lease Cost
LeaseCost
|
2982000000 | USD |
CY2019 | us-gaap |
Lease Cost
LeaseCost
|
3707000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
|
857000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Payments Due Next Twelve Months
FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
|
89000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
|
825000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Noncurrent
FinanceLeaseLiabilityNoncurrent
|
219000000 | USD |
CY2021Q4 | ual |
Lessee Operating And Finance Lease Not Yet Commenced Amount
LesseeOperatingAndFinanceLeaseNotYetCommencedAmount
|
415000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Payments Due Year Two
FinanceLeaseLiabilityPaymentsDueYearTwo
|
57000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
|
775000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Payments Due Year Three
FinanceLeaseLiabilityPaymentsDueYearThree
|
53000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
|
655000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Payments Due Year Four
FinanceLeaseLiabilityPaymentsDueYearFour
|
41000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due Year Five
LesseeOperatingLeaseLiabilityPaymentsDueYearFive
|
637000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Payments Due Year Five
FinanceLeaseLiabilityPaymentsDueYearFive
|
26000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due After Year Five
LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive
|
3982000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Payments Due After Year Five
FinanceLeaseLiabilityPaymentsDueAfterYearFive
|
72000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
|
7731000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Payments Due
FinanceLeaseLiabilityPaymentsDue
|
338000000 | USD |
CY2021Q4 | us-gaap |
Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
|
2023000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability Undiscounted Excess Amount
FinanceLeaseLiabilityUndiscountedExcessAmount
|
43000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Liability
OperatingLeaseLiability
|
5708000000 | USD |
CY2021Q4 | us-gaap |
Finance Lease Liability
FinanceLeaseLiability
|
295000000 | USD |
CY2021Q4 | us-gaap |
Operating Lease Liability Current
OperatingLeaseLiabilityCurrent
|
556000000 | USD |
CY2021Q4 | ual |
Number Of Aircraft In Sale Leaseback Transaction Included In Flight Equipment
NumberOfAircraftInSaleLeasebackTransactionIncludedInFlightEquipment
|
7 | aircraft |
CY2021Q4 | ual |
Number Of Aircraft In Sale Leaseback Transaction Included In Operating Lease Amounts
NumberOfAircraftInSaleLeasebackTransactionIncludedInOperatingLeaseAmounts
|
17 | aircraft |
CY2021Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P10Y | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
|
P11Y | |
CY2021Q4 | us-gaap |
Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
|
P6Y | |
CY2020Q4 | us-gaap |
Finance Lease Weighted Average Remaining Lease Term1
FinanceLeaseWeightedAverageRemainingLeaseTerm1
|
P4Y | |
CY2021Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.050 | |
CY2020Q4 | us-gaap |
Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
|
0.051 | |
CY2021Q4 | us-gaap |
Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
|
0.048 | |
CY2020Q4 | us-gaap |
Finance Lease Weighted Average Discount Rate Percent
FinanceLeaseWeightedAverageDiscountRatePercent
|
0.044 | |
CY2021 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
977000000 | USD |
CY2020 | us-gaap |
Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
|
20000000 | USD |
CY2019 | us-gaap |
Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
|
70000000 | USD |
CY2021 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
216000000 | USD |
CY2020 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
788000000 | USD |
CY2019 | us-gaap |
Operating Lease Payments
OperatingLeasePayments
|
902000000 | USD |
CY2021 | us-gaap |
Finance Lease Interest Payment On Liability
FinanceLeaseInterestPaymentOnLiability
|
18000000 | USD |
CY2020 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
66000000 | USD |
CY2019 | us-gaap |
Finance Lease Principal Payments
FinanceLeasePrincipalPayments
|
151000000 | USD |
CY2021Q4 | us-gaap |
Contractual Obligation Due In Next Twelve Months
ContractualObligationDueInNextTwelveMonths
|
2100000000 | USD |
CY2021Q4 | us-gaap |
Contractual Obligation Due In Second Year
ContractualObligationDueInSecondYear
|
2100000000 | USD |
CY2021Q4 | us-gaap |
Contractual Obligation Due In Third Year
ContractualObligationDueInThirdYear
|
2000000000.0 | USD |
CY2021Q4 | us-gaap |
Contractual Obligation Due In Fourth Year
ContractualObligationDueInFourthYear
|
1700000000 | USD |
CY2021Q4 | us-gaap |
Contractual Obligation Due In Fifth Year
ContractualObligationDueInFifthYear
|
1500000000 | USD |
CY2021Q4 | us-gaap |
Contractual Obligation Due After Fifth Year
ContractualObligationDueAfterFifthYear
|
4200000000 | USD |
CY2021Q4 | us-gaap |
Contractual Obligation
ContractualObligation
|
13600000000 | USD |
CY2021 | ual |
Number Of Call Options To Purchase Regional Jet Aircraft
NumberOfCallOptionsToPurchaseRegionalJetAircraft
|
251 | option |
CY2021Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On First Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary
|
5700000000 | USD |
CY2021Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary
|
6900000000 | USD |
CY2021Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary
|
5000000000.0 | USD |
CY2021Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary
|
4300000000 | USD |
CY2021Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary
UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary
|
3300000000 | USD |
CY2021Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Due After Five Years
UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears
|
8900000000 | USD |
CY2021Q4 | us-gaap |
Unrecorded Unconditional Purchase Obligation Balance Sheet Amount
UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount
|
34100000000 | USD |
CY2021 | us-gaap |
Unusual Or Infrequent Item Gain Gross
UnusualOrInfrequentItemGainGross
|
4021000000 | USD |
CY2020 | us-gaap |
Unusual Or Infrequent Item Gain Gross
UnusualOrInfrequentItemGainGross
|
3536000000 | USD |
CY2019 | us-gaap |
Unusual Or Infrequent Item Gain Gross
UnusualOrInfrequentItemGainGross
|
0 | USD |
CY2021 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
438000000 | USD |
CY2020 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
575000000 | USD |
CY2019 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
16000000 | USD |
CY2021 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
97000000 | USD |
CY2020 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
318000000 | USD |
CY2019 | us-gaap |
Asset Impairment Charges
AssetImpairmentCharges
|
171000000 | USD |
CY2021 | ual |
Gain Loss On Sale Of Other Assets And Other Miscellaneous Charges
GainLossOnSaleOfOtherAssetsAndOtherMiscellaneousCharges
|
-119000000 | USD |
CY2020 | ual |
Gain Loss On Sale Of Other Assets And Other Miscellaneous Charges
GainLossOnSaleOfOtherAssetsAndOtherMiscellaneousCharges
|
-27000000 | USD |
CY2019 | ual |
Gain Loss On Sale Of Other Assets And Other Miscellaneous Charges
GainLossOnSaleOfOtherAssetsAndOtherMiscellaneousCharges
|
-59000000 | USD |
CY2021 | us-gaap |
Restructuring Settlement And Impairment Provisions
RestructuringSettlementAndImpairmentProvisions
|
-3367000000 | USD |
CY2020 | us-gaap |
Restructuring Settlement And Impairment Provisions
RestructuringSettlementAndImpairmentProvisions
|
-2616000000 | USD |
CY2019 | us-gaap |
Restructuring Settlement And Impairment Provisions
RestructuringSettlementAndImpairmentProvisions
|
246000000 | USD |
CY2021 | ual |
Gain Loss On Financial Instruments Non Operating
GainLossOnFinancialInstrumentsNonOperating
|
-34000000 | USD |
CY2020 | ual |
Gain Loss On Financial Instruments Non Operating
GainLossOnFinancialInstrumentsNonOperating
|
-194000000 | USD |
CY2019 | ual |
Gain Loss On Financial Instruments Non Operating
GainLossOnFinancialInstrumentsNonOperating
|
153000000 | USD |
CY2021 | ual |
Debt Extinguishment And Modification Fees Non Operating
DebtExtinguishmentAndModificationFeesNonOperating
|
-50000000 | USD |
CY2020 | ual |
Debt Extinguishment And Modification Fees Non Operating
DebtExtinguishmentAndModificationFeesNonOperating
|
0 | USD |
CY2019 | ual |
Debt Extinguishment And Modification Fees Non Operating
DebtExtinguishmentAndModificationFeesNonOperating
|
0 | USD |
CY2021 | ual |
Defined Benefit Plan Net Periodic Benefit Cost Credit Gain Loss Due To Settlement Restructuring And Special And Contractual Termination Benefits
DefinedBenefitPlanNetPeriodicBenefitCostCreditGainLossDueToSettlementRestructuringAndSpecialAndContractualTerminationBenefits
|
-31000000 | USD |
CY2020 | ual |
Defined Benefit Plan Net Periodic Benefit Cost Credit Gain Loss Due To Settlement Restructuring And Special And Contractual Termination Benefits
DefinedBenefitPlanNetPeriodicBenefitCostCreditGainLossDueToSettlementRestructuringAndSpecialAndContractualTerminationBenefits
|
-687000000 | USD |
CY2019 | ual |
Defined Benefit Plan Net Periodic Benefit Cost Credit Gain Loss Due To Settlement Restructuring And Special And Contractual Termination Benefits
DefinedBenefitPlanNetPeriodicBenefitCostCreditGainLossDueToSettlementRestructuringAndSpecialAndContractualTerminationBenefits
|
0 | USD |
CY2021 | us-gaap |
Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
|
0 | USD |
CY2020 | us-gaap |
Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
|
697000000 | USD |
CY2019 | us-gaap |
Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
|
0 | USD |
CY2021 | ual |
Special Charges And Losses On Financial Instruments Non Operating Before Tax
SpecialChargesAndLossesOnFinancialInstrumentsNonOperatingBeforeTax
|
115000000 | USD |
CY2020 | ual |
Special Charges And Losses On Financial Instruments Non Operating Before Tax
SpecialChargesAndLossesOnFinancialInstrumentsNonOperatingBeforeTax
|
1578000000 | USD |
CY2019 | ual |
Special Charges And Losses On Financial Instruments Non Operating Before Tax
SpecialChargesAndLossesOnFinancialInstrumentsNonOperatingBeforeTax
|
-153000000 | USD |
CY2021 | us-gaap |
Extinguishment Of Debt Amount
ExtinguishmentOfDebtAmount
|
50000000 | USD |
CY2021 | ual |
Special Charges And Losses On Financial Instruments Operating And Nonoperating Before Tax
SpecialChargesAndLossesOnFinancialInstrumentsOperatingAndNonoperatingBeforeTax
|
-3252000000 | USD |
CY2020 | ual |
Special Charges And Losses On Financial Instruments Operating And Nonoperating Before Tax
SpecialChargesAndLossesOnFinancialInstrumentsOperatingAndNonoperatingBeforeTax
|
-1038000000 | USD |
CY2019 | ual |
Special Charges And Losses On Financial Instruments Operating And Nonoperating Before Tax
SpecialChargesAndLossesOnFinancialInstrumentsOperatingAndNonoperatingBeforeTax
|
93000000 | USD |
CY2021 | ual |
Income Tax Expense Benefit Special Charges
IncomeTaxExpenseBenefitSpecialCharges
|
728000000 | USD |
CY2020 | ual |
Income Tax Expense Benefit Special Charges
IncomeTaxExpenseBenefitSpecialCharges
|
404000000 | USD |
CY2019 | ual |
Income Tax Expense Benefit Special Charges
IncomeTaxExpenseBenefitSpecialCharges
|
-21000000 | USD |
CY2020 | ual |
Proceeds From Government Assistance
ProceedsFromGovernmentAssistance
|
5100000000 | USD |
CY2021 | ual |
Special Items Net Of Income Tax Benefits
SpecialItemsNetOfIncomeTaxBenefits
|
-2524000000 | USD |
CY2020 | ual |
Special Items Net Of Income Tax Benefits
SpecialItemsNetOfIncomeTaxBenefits
|
-634000000 | USD |
CY2019 | ual |
Special Items Net Of Income Tax Benefits
SpecialItemsNetOfIncomeTaxBenefits
|
72000000 | USD |
CY2021 | ual |
Proceeds From Government Assistance
ProceedsFromGovernmentAssistance
|
5800000000 | USD |
CY2021 | us-gaap |
Proceeds From Issuance Of Unsecured Debt
ProceedsFromIssuanceOfUnsecuredDebt
|
1700000000 | USD |
CY2021 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
438000000 | USD |
CY2021Q4 | ual |
Number Of Aircraft And Related Spare Engines Retired
NumberOfAircraftAndRelatedSpareEnginesRetired
|
64 | aircraft |
CY2021 | ual |
Gain Loss On Net Charges
GainLossOnNetCharges
|
119000000 | USD |
CY2021 | ual |
Gain Loss On Financial Instruments Non Operating
GainLossOnFinancialInstrumentsNonOperating
|
-34000000 | USD |
CY2020 | ual |
Proceeds From Government Assistance Grants
ProceedsFromGovernmentAssistanceGrants
|
3600000000 | USD |
CY2020 | us-gaap |
Proceeds From Issuance Of Unsecured Debt
ProceedsFromIssuanceOfUnsecuredDebt
|
1500000000 | USD |
CY2020 | us-gaap |
Proceeds From Issuance Of Warrants
ProceedsFromIssuanceOfWarrants
|
66000000 | USD |
CY2020 | us-gaap |
Postemployment Benefits Period Expense
PostemploymentBenefitsPeriodExpense
|
575000000 | USD |
CY2020 | us-gaap |
Impairment Of Leasehold
ImpairmentOfLeasehold
|
38000000 | USD |
CY2020 | us-gaap |
Impairment Of Ongoing Project
ImpairmentOfOngoingProject
|
56000000 | USD |
CY2020 | ual |
Gain Loss On Financial Instruments Non Operating
GainLossOnFinancialInstrumentsNonOperating
|
-194000000 | USD |
CY2020 | ual |
Defined Benefit Plan Net Periodic Benefit Cost Credit Gain Loss Due To Settlement Restructuring And Special And Contractual Termination Benefits
DefinedBenefitPlanNetPeriodicBenefitCostCreditGainLossDueToSettlementRestructuringAndSpecialAndContractualTerminationBenefits
|
-687000000 | USD |
CY2020 | us-gaap |
Provision For Loan Losses Expensed
ProvisionForLoanLossesExpensed
|
697000000 | USD |
CY2019 | ual |
Special Charges Adjustment Write Off Unexercise And Impairments Of Aircraft
SpecialChargesAdjustmentWriteOffUnexerciseAndImpairmentsOfAircraft
|
18000000 | USD |
CY2019 | us-gaap |
Other Asset Impairment Charges
OtherAssetImpairmentCharges
|
20000000 | USD |
CY2019 | us-gaap |
Gain Loss On Contract Termination
GainLossOnContractTermination
|
-25000000 | USD |
CY2019 | us-gaap |
Gain Loss Related To Litigation Settlement
GainLossRelatedToLitigationSettlement
|
-18000000 | USD |
CY2019 | ual |
Fleet Type Transaction Costs
FleetTypeTransactionCosts
|
-14000000 | USD |
CY2019 | us-gaap |
Other Restructuring Costs
OtherRestructuringCosts
|
2000000 | USD |
CY2019 | ual |
Gain Loss On Financial Instruments Non Operating
GainLossOnFinancialInstrumentsNonOperating
|
153000000 | USD |
CY2021 | dei |
Auditor Name
AuditorName
|
Ernst & Young LLP | |
CY2021 | dei |
Auditor Location
AuditorLocation
|
Chicago, Illinois | |
CY2021 | dei |
Auditor Firm
AuditorFirmId
|
42 |