CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (608)	$ 231	$ (2,143)	$ 2,170
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	0	0	0	1
Net actuarial gain (loss) incurred in period	0	0	2	(2)
Net tax loss attributable to pension termination	0	0	0	(14)
Total change in value of pension and postretirement liabilities	0	0	2	(15)
Comprehensive income (loss)	$ (608)	$ 231	$ (2,141)	$ 2,155