Stockholders' Equity (Deficit) - Changes in Common Stock (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Class of Stock [Line Items]
Total stockholders’ equity	$ 835	$ 1,184	$ 765	$ 1,161
Adjustments to Additional Paid in Capital Settlement of Liability Awards and Other	65	25
Redemption Premium	(43)	(14)
Treasury Stock, Value, Acquired, Cost Method	(25)	(28)
Stock Repurchased During Period, Value		(8)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	14	15
Net income	82	27
Other Comprehensive Income (Loss), Net of Tax	(23)	6
Common Stock [Member]
Class of Stock [Line Items]
Total stockholders’ equity	1	1	1	1
Additional Paid-in Capital [Member]
Class of Stock [Line Items]
Total stockholders’ equity	1,154	1,388	1,118	1,370
Adjustments to Additional Paid in Capital Settlement of Liability Awards and Other	65	25
Redemption Premium	(43)	(14)
Stock Repurchased During Period, Value		(8)
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition	14	15
Retained Earnings [Member]
Class of Stock [Line Items]
Total stockholders’ equity	762	539	680	517
Net income	82	22
Treasury Stock, Common
Class of Stock [Line Items]
Total stockholders’ equity	(776)	(608)	(751)	(580)
Treasury Stock, Value, Acquired, Cost Method	(25)	(28)
AOCI Attributable to Parent [Member]
Class of Stock [Line Items]
Total stockholders’ equity	(306)	(312)	$ (283)	(318)
Other Comprehensive Income (Loss), Net of Tax	$ (23)	6
Noncontrolling Interest [Member]
Class of Stock [Line Items]
Total stockholders’ equity		176		$ 171
Net income		$ 5