Financial Instruments and Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The table below presents disclosures about the financial assets and liabilities measured at fair value on a recurring basis in UAL's financial statements (in millions):

	March 31, 2022								December 31, 2021
	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	18,468	$	18,468	$	—	$	—	$	18,283	$	18,283	$	—	$	—
Restricted cash - current	41		41		—		—		37		37		—		—
Restricted cash - non-current	214		214		—		—		213		213		—		—
Short-term investments:
Corporate debt	65		—		65		—		95		—		95		—
Asset-backed securities	144		—		144		—		26		—		26		—
U.S. government and agency notes	2		—		2		—		2		—		2		—
Long-term investments:
Equity securities	228		228				—		229		229		—		—

Carrying Values and Estimated Fair Values of Financial Instruments

The table below presents the carrying values and estimated fair values of financial instruments not presented in the tables above (in millions). Carrying amounts include any related discounts, premiums and issuance costs:

	March 31, 2022										December 31, 2021
	Carrying Amount		Fair Value								Carrying Amount		Fair Value
			Total		Level 1		Level 2		Level 3				Total		Level 1		Level 2		Level 3
Long-term debt	$	32,659	$	32,199	$	—	$	27,066	$	5,133	$	33,363	$	34,550	$	—	$	29,088	$	5,462