CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (295)	$ (502)	$ (687)	$ (1,947)
Other comprehensive loss, net of tax:
Foreign currency translation	0	0	(1)	0
Total other comprehensive loss, net of tax	0	0	(1)	0
Total comprehensive loss	$ (295)	$ (502)	$ (688)	$ (1,947)