CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income (loss)	$ 756	$ (1,480)	$ 1,469
Amounts arising during the period - gains (losses), net of tax (expense) benefit:
Foreign currency translation adjustments, net of tax	0	372	267
Qualifying derivatives, net of tax	0	(39)	(19)
Equity investee's other comprehensive income after tax	2	0	0
Defined benefit plans:
Prior service costs, net of tax	(1)	0	(1)
Net actuarial gain (loss), net of tax	11	(1)	(341)
Reclassifications from AOCI - (gains) losses, net of tax expense (benefit):
Qualifying derivatives, net of tax	2	25	24
Defined benefit plans:
Prior service costs, net of tax	2	2	3
Net actuarial (gain) loss, net of tax	17	126	205
Foreign currency translation adjustments, net of tax (UK Sale Reclassification)	0	786	0
Qualifying derivatives, net of tax (UK Sale Reclassification)	0	15	0
Total other comprehensive income (loss)	33	4,063	138
Comprehensive income	789	2,583	1,607
Net actuarial (gain) loss, net of tax (UK Sale Reclassification)	0	2,769	0
Prior service costs, net of tax (UK Sale Reclassification)	$ 0	$ 8	$ 0