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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Income Tax Provision (Benefit) Differed from Amounts Computed at the Statutory Federal Income Tax Rate and Significant Components

The income tax provision (benefit) differed from amounts computed at the statutory federal income tax rate and consisted of the following significant components (in millions):

UAL						2020						2019						2018
Income tax provision (benefit) at statutory rate						$	(1,852)					$	822					$	556
State income taxes, net of federal income tax benefit						(110)						50						29
Foreign tax rate differential						—						(90)						(84)
Global intangible low-taxed income						—						90						4
Foreign income taxes						1						1						2
Nondeductible employee meals						5						12						12
State rate change						(2)						—						3
Valuation allowance						197						(4)						(3)
Other, net						8						24						7
						$	(1,753)					$	905					$	526
Current						$	(12)					$	23					$	14
Deferred						(1,741)						882						512
						$	(1,753)					$	905					$	526
United						2020						2019						2018
Income tax provision (benefit) at statutory rate						$	(1,852)					$	822					$	557
State income taxes, net of federal income tax						(110)						50						29
Foreign tax rate differential						—						(90)						(84)
Global intangible low-taxed income						—						90						4
Foreign income taxes						1						1						2
Nondeductible employee meals						5						12						12
State rate change						(2)						—						3
Valuation allowance						197						(4)						(3)
Other, net						8						24						7
						$	(1,753)					$	905					$	527
Current						$	(12)					$	23					$	14
Deferred						(1,741)						882						513
						$	(1,753)					$	905					$	527

Temporary Differences and Carryforwards Giving Rise to Deferred Tax Assets and Liabilities

Temporary differences and carryforwards that give rise to deferred tax assets and liabilities at December 31, 2020 and 2019 were as follows (in millions):

						UAL												United
						2020						2019						2020						2019
Deferred income tax asset (liability):
Federal and state net operating loss ("NOL") carryforwards						$	2,476					$	695					$	2,448					$	668
Deferred revenue						1,409						1,287						1,409						1,287
Employee benefits, including pension, postretirement and medical						1,103						715						1,103						715
Operating lease liabilities						1,247						1,256						1,247						1,256
Sale leaseback liabilities						260						—						260						—
Other						362						165						362						165
Less: Valuation allowance						(247)						(58)						(247)						(58)
Total deferred tax assets						$	6,610					$	4,060					$	6,582					$	4,033
Depreciation						$	(4,789)					$	(4,011)					$	(4,789)					$	(4,011)
Operating lease right-of-use asset						(1,028)						(1,061)						(1,028)						(1,061)
Intangibles						(662)						(724)						(662)						(724)
Total deferred tax liabilities						$	(6,479)					$	(5,796)					$	(6,479)					$	(5,796)
Net deferred tax asset (liability)						$	131					$	(1,736)					$	103					$	(1,763)

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- References

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- Definition

Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319

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- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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