Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Accounting Standards Update 2016-13 [Member]	Retained Earnings [Member]	Retained Earnings [Member] Accounting Standards Update 2016-13 [Member]	AOCI Attributable to Parent [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Common Stock Held in Treasury, at Cost [Member]	Noncontrolling Interest [Member]	Parent Company [Member]	Parent Company [Member] Accounting Standards Update 2016-13 [Member]	Parent Company [Member] Retained Earnings [Member]	Parent Company [Member] Retained Earnings [Member] Accounting Standards Update 2016-13 [Member]	Parent Company [Member] AOCI Attributable to Parent [Member]	Parent Company [Member] Additional Paid-in Capital [Member]	Parent Company [Member] Common Stock Held in Treasury, at Cost [Member]
Beginning balance at Dec. 31, 2019	$ 1,536		$ 1,203		$ 42	$ 0	$ 0	$ 232	$ 0	$ 60
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	(400)		(437)		37						$ (400)		$ (437)		$ 37
Effect of New Accounting Principle		$ (4)		$ (4)								$ (4)		$ (4)
Stock-based compensation	11		0		0	0	0	11	0	0	11					$ 11
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(3)		(2)		0	0	0	0	(1)	0	(3)		(2)				$ (1)
Ending balance at Dec. 31, 2020	1,140		759		79	0	0	242	(1)	60
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	(38)		(17)		(21)						(38)		(17)		(21)
Stock-based compensation	14		0		0	0	0	14	0	0	14					14	0
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(6)		(4)		0	0	0	0	(2)	0	(6)		(4)				(2)
Ending balance at Dec. 31, 2021	1,098		726		58	0	0	257	(3)	60
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling Interest, Change in Redemption Value	(12)		(12)								(12)		(12)
Total comprehensive income (loss)	212		521		(310)						211		521		$ (310)
Stock-based compensation	17		0		0	0	0	17	0	0	17					$ 17
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(4)		(5)		0	0	0	0	2	0	(4)		(5)				$ 2
Treasury Stock, Value, Acquired, Cost Method	(14)								(14)
Ending balance at Dec. 31, 2022	1,305		1,245		$ (253)	$ 0	$ 0	$ 274	$ (15)	53
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total, Excluding Gain on AMPS Repurchase	211
Noncontrolling Interest, Change in Redemption Value	3		3								3		3
AMPS Impact on Stockholders Equity	(8)		$ 1							(9)	$ 1		$ 1
Proceeds from Noncontrolling Interests	$ 2									$ 2