CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Millions	Total	COMMON STOCK	ADDITIONAL PAID-IN CAPITAL	ACCUMULATED OTHER COMPREHENSIVE LOSS	ACCUMULATED DEFICIT
Balance at beginning of period at Dec. 31, 2021		$ 1,024	$ 18,972	$ (2,158)	$ (5,998)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock through incentive and benefit plans		11
Shares withheld to satisfy tax withholdings			(30)
Stock-based compensation			71
Dividends declared			(792)
Other		0	0
Other comprehensive (loss) income	$ (44)			(44)
Net (loss) income	1,521				1,521
Balance at end of period at Sep. 30, 2022	$ 12,577	1,035	18,221	(2,202)	(4,477)
Increase (Decrease) in Stockholders' Equity
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.75
Balance at beginning of period at Jun. 30, 2022		1,032	18,459	(2,217)	(5,055)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock through incentive and benefit plans		3
Shares withheld to satisfy tax withholdings			(1)
Stock-based compensation			23
Dividends declared			(260)
Other		0	0
Other comprehensive (loss) income	$ 15			15
Net (loss) income	578				578
Balance at end of period at Sep. 30, 2022	$ 12,577	1,035	18,221	(2,202)	(4,477)
Increase (Decrease) in Stockholders' Equity
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.25
Balance at beginning of period at Dec. 31, 2022	$ 10,437	1,002	18,080	(1,099)	(7,546)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock through incentive and benefit plans		7
Shares withheld to satisfy tax withholdings			(5)
Stock-based compensation			39
Dividends declared			0
Other		(1)	3
Other comprehensive (loss) income	42			42
Net (loss) income	(8,303)				(8,303)
Balance at end of period at Sep. 30, 2023	$ 2,219	1,008	18,117	(1,057)	(15,849)
Increase (Decrease) in Stockholders' Equity
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0
Balance at beginning of period at Jun. 30, 2023		1,008	18,100	(1,053)	(15,771)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock through incentive and benefit plans		1
Shares withheld to satisfy tax withholdings			(1)
Stock-based compensation			16
Dividends declared			0
Other		(1)	2
Other comprehensive (loss) income	$ (4)			(4)
Net (loss) income	(78)				(78)
Balance at end of period at Sep. 30, 2023	$ 2,219	$ 1,008	$ 18,117	$ (1,057)	$ (15,849)
Increase (Decrease) in Stockholders' Equity
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0