Changes in Accumulated Other Comprehensive (Loss) Income

12 Months Ended

Dec. 31, 2023

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Changes in Accumulated Other Comprehensive (Loss) Income

Note 15. Changes in Accumulated Other Comprehensive (Loss) Income

The following table presents the changes in accumulated other comprehensive loss by component for the years ended December 31, 2023, 2022 and 2021 (in millions):

	Changes related to cash flow derivative hedges		Changes in defined benefit plans		Foreign currency translation adjustments		Accumulated other comprehensive (loss) income
Accumulated comprehensive loss at January 1, 2021	$	(651)	$	(66)	$	(23)	$	(740)
Other comprehensive (loss) income before reclassifications	(17)		5		16		4
Amounts reclassified from accumulated other comprehensive loss	21		4		—		25
Net current-period other comprehensive income	4		9		16		29
Accumulated comprehensive loss at January 1, 2022	(647)		(57)		(7)		(711)
Other comprehensive income before reclassifications	171		46		10		227
Amounts reclassified from accumulated other comprehensive loss	(163)		3		—		(160)
Net current-period other comprehensive income	8		49		10		67
Accumulated comprehensive loss at January 1, 2023	(639)		(8)		3		(644)
Other comprehensive income (loss) before reclassifications	3		6		(9)		—
Amounts reclassified from accumulated other comprehensive loss	(30)		—		—		(30)
Net current-period other comprehensive (loss) income	(27)		6		(9)		(30)
Accumulated comprehensive loss at December 31, 2023	$	(666)	$	(2)	$	(6)	$	(674)

The following table presents reclassifications out of accumulated other comprehensive loss for the years ended December 31, 2023, 2022 and 2021 (in millions):

	Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Loss into (Loss) Income
Details about Accumulated Other Comprehensive Loss Components	Year Ended December 31, 2023		Year Ended December 31, 2022		Year Ended December 31, 2021		Affected Line Item in Statements of Comprehensive Income (Loss)
Gain (loss) on cash flow derivative hedges:
Interest rate swaps	$	49	$	(12)	$	(44)	Interest expense, net of interest capitalized
Foreign currency forward contracts	(18)		(17)		(15)		Depreciation and amortization expenses
Foreign currency forward contracts	(10)		(3)		(3)		Other (expense) income
Fuel swaps	—		—		—		Other (expense) income
Fuel swaps	9		195		41		Fuel
	30		163		(21)
Amortization of defined benefit plans:
Actuarial loss	—		(3)		(4)		Payroll and related
Total reclassifications for the period	$	30	$	160	$	(25)