Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
NET INCOME	$ 465	$ 465	$ 539
Unrealized gain (loss) on defined benefit plan items, net of deferred taxes of $4, ($5), and $24	14	(16)	80
Other, net of deferred taxes	5	9	19
OTHER COMPREHENSIVE LOSS	(25)	(344)	(44)
COMPREHENSIVE INCOME	440	121	495
Fuel derivative contracts
Unrealized loss on derivatives, net of tax	$ (44)	$ (337)	$ (143)