Consolidated Statement of Stockholders' Equity - USD ($) $ in Millions	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (Accounting Standards Update 2016-02 [Member]) at Dec. 31, 2018	$ (1)	$ (1)	$ (1)
Balance at Dec. 31, 2018				$ 2	$ 2,368	$ 456	$ (119)	$ (1,362)	$ 1,345	$ 97	$ 1,442
Net income (loss)						226			226	13	239
Other comprehensive income (loss)								375	375	(4)	371
Common stock dividends and dividend equivalents					1
Common stock dividends and dividend equivalents						(59)			(58)		(58)
Common stock share repurchases							(25)		(25)		(25)
Distributions to noncontrolling interests										(19)	(19)
Increase from business combination										8	8
Stock compensation					17				17		17
Stock withheld for employees taxes							(6)		(6)		(6)
Balance (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2019	$ (1)	$ (1)	$ (1)
Balance at Dec. 31, 2019				2	2,386	622	(150)	(987)	1,873	95	1,968
Net income (loss)						(31)			(31)	10	(21)
Other comprehensive income (loss)								(40)	(40)	17	(23)
Common stock dividends and dividend equivalents						(15)			(15)		(15)
Distributions to noncontrolling interests										(11)	(11)
Stock compensation					12				12		12
Stock withheld for employees taxes							(6)		(6)		(6)
Purchase of noncontrolling interests					10				10	(23)	(13)
Sale of noncontrolling interests										2	2
Redeemable noncontrolling interests adjustment to redemption value						(38)			(38)		(38)
Deconsolidation of non-wholly owned subsidiary						(7)		1	(6)	(14)	(20)
Balance at Dec. 31, 2020				2	2,408	530	(156)	(1,026)	1,758	76	1,834
Net income (loss)						197			197	14	211
Other comprehensive income (loss)								41	41	(12)	29
Common stock dividends and dividend equivalents					1
Common stock dividends and dividend equivalents						(59)			(58)		(58)
Common stock share repurchases							(23)		(23)		(23)
Distributions to noncontrolling interests										(15)	(15)
Stock compensation					18				18		18
Stock withheld for employees taxes							(5)		(5)		(5)
Purchase of noncontrolling interests										(2)	(2)
Redeemable noncontrolling interests adjustment to redemption value						(6)			(6)		(6)
Deconsolidation of non-wholly owned subsidiary										(8)	(8)
Sale of noncontrolling interests										(1)	(1)
Other										1	1
Balance at Dec. 31, 2021				$ 2	$ 2,427	$ 662	$ (184)	$ (985)	$ 1,922	$ 53	$ 1,975