Consolidated Condensed Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income		$ 1,375	$ 2,746	$ 3,498	$ 11,377
Other comprehensive income (loss) items:
Gains on derivatives	[1]	1	1	59	65
Pension and postretirement gains	[2]	46	48	39	57
Other		(1)	(1)	0	(1)
Other comprehensive income, net of tax		46	48	98	121
Comprehensive income attributable to preferred and common stockholders		$ 1,421	$ 2,794	$ 3,596	$ 11,498

[1] Net of tax expense of zero for the three months ended September 30, 2023 and 2022, and zero and $18 million for the nine months ended September 30, 2023 and 2022, respectively.

[2] Net of tax expense of $12 million and $13 million for the three months ended September 30, 2023 and 2022, respectively, and $10 million and $16 million for the nine months ended September 30, 2023 and 2022, respectively.