Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	Series D Preferred Stock [Member]	Series E Preferred Stock [Member]	Series F Preferred Stock [Member]	Preferred Stock [Member]	Common Stock [Member]	Common Stock [Member] Series A Preferred Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Retained Earnings [Member] Series A Preferred Stock [Member]	Retained Earnings [Member] Series C Preferred Stock [Member]	Retained Earnings [Member] Series D Preferred Stock [Member]	Retained Earnings [Member] Series E Preferred Stock [Member]	Retained Earnings [Member] Series F Preferred Stock [Member]	Treasury Stock, at Cost [Member]	Treasury Stock, at Cost [Member] Series A Preferred Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
Beginning Balance, Preferred Shares (in shares) at Dec. 31, 2015					2,900,000
Beginning Balance, Common Shares (in shares) at Dec. 31, 2015						835,751,000
Beginning Balance at Dec. 31, 2015					$ 290	$ 1,017		$ 3,922	$ 8,922						$ (3,000)		$ (405)	$ 13
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 790								791									(1)
Other comprehensive income (loss)	(136)																(136)
Deferred compensation								(4)
Dividends, Cash [Abstract]
Cash dividends declared on common shares									(298)
Cash dividends declared on preferred stock										$ (22)	$ (8)	$ (7)
Common Shares issued for the acquisition of FNFG (in shares)						239,732,000
Common Shares issued for the acquisition of FNFG						$ 240		2,591
Common Shares repurchased (in shares)							(10,502,000)
Common Shares repurchased																$ (140)
Issuance of Preferred Stock (in shares)					14,521,000
Shares issued					$ 1,375			(16)
Redemption of Series C Preferred Stock	0
Common shares reissued (returned) for stock options and other employee benefit plans (in shares)						14,333,000
Common Shares reissued (returned) for stock options and other employee benefit plans								(108)							236
Net contribution from (distribution to) noncontrolling interests																		(12)
Ending Balance, Preferred Shares (in shares) at Dec. 31, 2016					17,421,000
Ending Balance, Common Shares (in shares) at Dec. 31, 2016						1,079,314,000
Ending Balance at Dec. 31, 2016					$ 1,665	$ 1,257		6,385	9,378						(2,904)		(541)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	1,298								1,296									2
Other comprehensive income (loss)	(238)																(238)
Reclassification of tax effects in AOCI resulting from the new federal corporate income tax rate	(141)								141
Deferred compensation								16
Dividends, Cash [Abstract]
Cash dividends declared on common shares									(410)
Cash dividends declared on preferred stock										$ (6)	$ (7)	(26)	$ (31)
Common Shares repurchased (in shares)						(36,140,000)
Common Shares repurchased															(665)
Series A Preferred Stock exchanged for common shares (in shares)					2,900,000	20,568,000
Series A Preferred Stock exchanged for Common Shares					$ (290)			(49)							338
Employee equity compensation program common share repurchases (in shares)						(3,520,000)
Employee equity compensation program Common Share repurchases															(65)
Redemption of Preferred Stock Series C (in shares)					(14,000,000)
Redemption of Series C Preferred Stock	350				$ (350)
Common shares reissued (returned) for stock options and other employee benefit plans (in shares)						8,862,000
Common Shares reissued (returned) for stock options and other employee benefit plans								(17)							146
Net contribution from (distribution to) noncontrolling interests																		0
Ending Balance, Preferred Shares (in shares) at Dec. 31, 2017					521,000
Ending Balance, Common Shares (in shares) at Dec. 31, 2017						1,069,084,000
Ending Balance at Dec. 31, 2017	15,025				$ 1,025	$ 1,257		6,335	10,335						(3,150)		(779)	2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other reclassification of AOCI	(13)								13
Net income (loss)	1,866								1,866									0
Other comprehensive income (loss)	(39)																(39)
Deferred compensation								21
Dividends, Cash [Abstract]
Cash dividends declared on common shares									(590)
Cash dividends declared on preferred stock												$ (26)	$ (31)	$ (9)
Common Shares repurchased (in shares)						(54,006,000)
Common Shares repurchased															(1,098)
Issuance of Preferred Stock (in shares)					425,000
Shares issued					$ 425			(13)
Employee equity compensation program common share repurchases (in shares)						(2,286,000)
Employee equity compensation program Common Share repurchases															(47)
Redemption of Series C Preferred Stock	0
Common shares reissued (returned) for stock options and other employee benefit plans (in shares)						6,711,000
Common Shares reissued (returned) for stock options and other employee benefit plans								(12)							114
Net contribution from (distribution to) noncontrolling interests																		(1)
Ending Balance, Preferred Shares (in shares) at Dec. 31, 2018		21,000	500,000	425,000	946,000
Ending Balance, Common Shares (in shares) at Dec. 31, 2018						1,019,503,000
Ending Balance at Dec. 31, 2018	$ 15,596				$ 1,450	$ 1,257		$ 6,331	$ 11,556						$ (4,181)		$ (818)	$ 1