Consolidated Condensed Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income		$ 860	$ 3,755	$ 2,123	$ 8,631
Other comprehensive income (loss) items:
Gains (losses) on derivatives	[1]	(5)	37	58	64
Pension and postretirement gains (losses)	[2]	(2)	8	(7)	9
Other		(1)	0	1	0
Other comprehensive income (losses), net of tax		(8)	45	52	73
Comprehensive income attributable to preferred and common stockholders		$ 852	$ 3,800	$ 2,175	$ 8,704

[1] Net of tax expense of zero and $(10) million for the three months ended June 30, 2023 and 2022, respectively, and zero and $(18) million for the six months ended June 30, 2023 and 2022, respectively.

[2] Net of tax benefit (expense) of $1 million and $(3) million for the three months ended June 30, 2023 and 2022, respectively, and $2 million and $(3) million for the six months ended June 30, 2023 and 2022, respectively.