Consolidated Condensed Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income		$ 1,263	$ 4,876
Other comprehensive income (loss) items:
Gains on derivatives	[1]	63	27
Pension and postretirement gains (losses)	[2]	(5)	1
Other		2	0
Other comprehensive income, net of tax		60	28
Comprehensive income attributable to preferred and common stockholders		$ 1,323	$ 4,904

[1] Net of tax expense of zero and $8 million for the three months ended March 31, 2023 and 2022, respectively.

[2] Net of tax benefit of $1 million and zero for the three months ended March 31, 2023 and 2022, respectively.