Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2022

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Rollforward of the Amounts Included in AOCI, Net of Taxes

A rollforward of the amounts included in AOCI, net of taxes, is shown below for 2022 and 2021:

(in millions)	Fuel derivatives		Interest rate derivatives		Defined benefit plan items		Other		Deferred tax impact		Accumulated other comprehensive income (loss)
Balance at December 31, 2020	$	(119)	$	(66)	$	(43)	$	91	$	32	$	(105)
Cumulative effect of adopting ASU 2016-01 as of January 1, 2018	—		—		—		(31)		11		(20)
Changes in fair value	601		3		109		—		(166)		547
Reclassification to earnings	10		6		—		(60)		10		(34)
Balance at December 31, 2021	$	492	$	(57)	$	66	$	—	$	(113)	$	388
Changes in fair value	645		18		106		—		(179)		590
Reclassification to earnings	(832)		7		(2)		—		193		(634)
Balance at December 31, 2022	$	305	$	(32)	$	170	$	—	$	(99)	$	344

Reclassification out of Accumulated Other Comprehensive Income

The following table illustrates the significant amounts reclassified out of each component of AOCI for the year ended December 31, 2022:

Year ended December 31, 2022
(in millions)	Amounts reclassified from AOCI		Affected line item in the Consolidated Statement of Income (Loss)
AOCI components
Unrealized (gain) on fuel derivative instruments	$	(832)	Fuel and oil expense
	—		Other (gains) losses, net
	(195)		Less: Tax expense
	$	(637)	Net of tax
Unrealized loss on interest rate derivative instruments	7		Other operating expenses
	2		Less: Tax expense
	$	5	Net of tax
Unrealized (gain) on defined benefit plan	$	(2)	Other (gains) losses, net
	—		Less: Tax expense
	$	(2)	Net of tax
Total reclassifications for the period	$	(634)	Net of tax