Condensed Consolidated Statements of Changes in Stockholder's Equity (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Total Stockholders Equity	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Non-Redeemable Noncontrolling Interests in Subsidiaries
Balance at beginning of period (in shares) at Dec. 31, 2021			132.0
Balance at beginning of period at Dec. 31, 2021		$ 1,259	$ 1	$ 515	$ 1,031	$ (291)	$ 3
Comprehensive income:
Net income (loss)		(35)			(34)		(1)
Other comprehensive income (loss)		18				18
Total comprehensive income (loss)		(17)			(34)	18
Total comprehensive income (loss), attributable to nonredeemable noncontrolling interest							(1)
Employee stock purchase and stock compensation plans (in shares)			3.0
Employee stock purchase and stock compensation plans		19		19
Stock issued in acquisition of LibertyX (in shares)			1.0
Stock issued in acquisition of LibertyX		68		68
Series A convertible preferred stock dividends		(4)			(4)
Balance at end of period (in shares) at Mar. 31, 2022			136.0
Balance at end of period at Mar. 31, 2022		1,325	$ 1	602	993	(273)	2
Balance at beginning of period (in shares) at Dec. 31, 2021			132.0
Balance at beginning of period at Dec. 31, 2021		1,259	$ 1	515	1,031	(291)	3
Comprehensive income:
Other comprehensive income (loss)	$ (15)
Balance at end of period (in shares) at Jun. 30, 2022			137.0
Balance at end of period at Jun. 30, 2022		1,373	$ 1	644	1,030	(305)	3
Balance at beginning of period (in shares) at Mar. 31, 2022			136.0
Balance at beginning of period at Mar. 31, 2022		1,325	$ 1	602	993	(273)	2
Comprehensive income:
Net income (loss)		43			41		2
Other comprehensive income (loss)	$ (33)	(33)				(32)	(1)
Total comprehensive income (loss)		10			41	(32)
Total comprehensive income (loss), attributable to nonredeemable noncontrolling interest							1
Employee stock purchase and stock compensation plans (in shares)			1.0
Employee stock purchase and stock compensation plans		42		42
Series A convertible preferred stock dividends		(4)			(4)
Balance at end of period (in shares) at Jun. 30, 2022			137.0
Balance at end of period at Jun. 30, 2022		1,373	$ 1	644	1,030	(305)	3
Balance at beginning of period (in shares) at Dec. 31, 2022	138.0		138.0
Balance at beginning of period at Dec. 31, 2022	$ 1,479	1,479	$ 1	704	1,075	(300)	(1)
Comprehensive income:
Net income (loss)		10			9		1
Other comprehensive income (loss)		(20)				(19)	(1)
Total comprehensive income (loss)		(10)			9	(19)
Total comprehensive income (loss), attributable to nonredeemable noncontrolling interest							0
Employee stock purchase and stock compensation plans (in shares)			2.0
Employee stock purchase and stock compensation plans		23		23
Series A convertible preferred stock dividends		(4)			(4)
Balance at end of period (in shares) at Mar. 31, 2023			140.0
Balance at end of period at Mar. 31, 2023		1,488	$ 1	727	1,080	(319)	(1)
Balance at beginning of period (in shares) at Dec. 31, 2022	138.0		138.0
Balance at beginning of period at Dec. 31, 2022	$ 1,479	1,479	$ 1	704	1,075	(300)	(1)
Comprehensive income:
Other comprehensive income (loss)	$ (11)
Balance at end of period (in shares) at Jun. 30, 2023	140.4		140.0
Balance at end of period at Jun. 30, 2023	$ 1,554	1,554	$ 1	770	1,095	(311)	(1)
Balance at beginning of period (in shares) at Mar. 31, 2023			140.0
Balance at beginning of period at Mar. 31, 2023		1,488	$ 1	727	1,080	(319)	(1)
Comprehensive income:
Net income (loss)		18			19		(1)
Other comprehensive income (loss)	$ 9	9				8	1
Total comprehensive income (loss)		27			19	8
Total comprehensive income (loss), attributable to nonredeemable noncontrolling interest							0
Employee stock purchase and stock compensation plans		43		43
Series A convertible preferred stock dividends		(4)			(4)
Balance at end of period (in shares) at Jun. 30, 2023	140.4		140.0
Balance at end of period at Jun. 30, 2023	$ 1,554	$ 1,554	$ 1	$ 770	$ 1,095	$ (311)	$ (1)