CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 1,939	$ (2,675)
Change in value of pension and other postretirement liabilities:
Amortization of prior service cost and net gain, including gain on settlements and curtailments included in net periodic pension cost	[1]	1	0
Net actuarial loss incurred in period		(2)	0
Net tax loss attributable to pension termination		(14)	0
Total change in value of pension and postretirement liabilities		(15)	0
Comprehensive income (loss)		$ 1,924	$ (2,675)

[1] Settlement adjustment was less than $1 million for the three months ended March 31, 2022.