Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Treasury Stock, Common	Noncontrolling Interest [Member]
Beginning balance at Dec. 31, 2022	$ 1,305	$ 0	$ 0	$ 274	$ (253)	$ 1,245	$ (15)	$ 53
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	3				36	(33)		0
Stock-based compensation	3			3
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(5)	0	0		0	(6)	2
Ending balance at Mar. 31, 2023	1,307	0	0	278	(217)	1,206	(14)	53
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	3
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	36
Noncontrolling Interest, Change in Redemption Value	0					0
Noncontrolling Interest in Net Income (Loss) Other Noncontrolling Interests, Nonredeemable								0
Beginning balance at Dec. 31, 2023	1,415	0	0	292	(160)	1,246	(17)	53
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	5
Stock-based compensation	0			0
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	(1)	0	0	0	0	(1)	0	0
Ending balance at Mar. 31, 2024	1,418	$ 0	$ 0	$ 291	(175)	1,266	$ (17)	53
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total comprehensive income (loss)	5
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(15)				$ (15)	20		0
Noncontrolling Interest, Change in Redemption Value	$ 0					$ 0
Noncontrolling Interest in Net Income (Loss) Other Noncontrolling Interests, Nonredeemable								$ 0