CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income		$ 1,121	$ 1,625	$ 4,065
Postretirement benefits:
Amortization of net actuarial gain	[1]	(1)	(2)	0
Net actuarial gain	[2]	2	0	12
Amortization of prior service credit	[3]	0	0	(1)
Plan amendment	[4]	0	0	1
Total other comprehensive income (loss)		1	(2)	12
Comprehensive income		$ 1,122	$ 1,623	$ 4,077

[1] Net of income taxes of less than $1 million for the years ended December 31, 2024 and 2023, respectively.

[2] Net of income taxes of less than $1 million and $3 million for the years ended December 31, 2024 and 2022, respectively.

[3] Net of income taxes of less than $1 million for the year ended December 31, 2022

[4] Net of income taxes of less than $1 million for the year ended December 31, 2022