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		8
Shares withheld to satisfy tax withholdings			(29)
Stock-based compensation			48
Dividends declared			(532)
Other			0
Other comprehensive income (loss)	$ (59)			(59)
Net (loss) income	943				943
Balance at end of period at Jun. 30, 2022	$ 12,219	1,032	18,459	(2,217)	(5,055)
Increase (Decrease) in Stockholders' Equity
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0.50
Balance at beginning of period at Mar. 31, 2022		1,033	18,695	(2,047)	(5,399)
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			25
Dividends declared			(260)
Other			0
Other comprehensive income (loss)	$ (170)			(170)
Net (loss) income	344				344
Balance at end of period at Jun. 30, 2022	$ 12,219	1,032	18,459	(2,217)	(5,055)
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		6
Shares withheld to satisfy tax withholdings			(4)
Stock-based compensation			23
Dividends declared			0
Other			1
Other comprehensive income (loss)	46			46
Net (loss) income	(8,225)				(8,225)
Balance at end of period at Jun. 30, 2023	$ 2,284	1,008	18,100	(1,053)	(15,771)
Increase (Decrease) in Stockholders' Equity
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0
Balance at beginning of period at Mar. 31, 2023		1,005	18,094	(1,069)	(7,035)
Increase (Decrease) in Stockholders' Equity
Issuance of common stock through incentive and benefit plans		3
Shares withheld to satisfy tax withholdings			0
Stock-based compensation			9
Dividends declared			0
Other			(3)
Other comprehensive income (loss)	$ 16			16
Net (loss) income	(8,736)				(8,736)
Balance at end of period at Jun. 30, 2023	$ 2,284	$ 1,008	$ 18,100	$ (1,053)	$ (15,771)
Increase (Decrease) in Stockholders' Equity
DIVIDENDS DECLARED PER COMMON SHARE (in dollars per share)	$ 0