CONSOLIDATED AND COMBINED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Paid-In Capital	Retained Earnings	Parent Company Investment	Parent Company Investment Cumulative Effect, Period of Adoption, Adjustment	Accumulated  Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2018			0.0
Balance at beginning of period at Dec. 31, 2018	$ 2,528		$ 0	$ 0	$ 0	$ 3,719		$ (1,191)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net transfers (to) from Parent	(350)					(350)
Comprehensive income (loss)	339					377		(38)
Ending balance (in shares) at Dec. 31, 2019			0.0
Balance at end of period at Dec. 31, 2019	$ 2,517	$ 1	$ 0	0	0	3,746	$ 1	(1,229)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13 [Member]
Net transfers (to) from Parent	$ (325)					(325)
Comprehensive income (loss)	(81)					170		(251)
Ending balance (in shares) at Dec. 31, 2020			0.0
Balance at end of period at Dec. 31, 2020	2,112		$ 0	0	0	3,592		(1,480)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net transfers (to) from Parent	(567)					(424)		(143)
Special payment to Parent	(1,520)					(1,520)
Reclassification of Parent company investment	0				1,917	(1,917)
Issuance of common stock at spin-off (in shares)			44.0
Issuance of common stock at spin-off	0		$ 44		(44)
Stock-based employee compensation	4			4
Comprehensive income (loss)	$ 153				62	269		(178)
Ending balance (in shares) at Dec. 31, 2021	43.9		44.0
Balance at end of period at Dec. 31, 2021	$ 182		$ 44	$ 4	$ 1,935	$ 0		$ (1,801)