Consolidated Statements of Changes in Equity (Deficit) (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reclassification adjustment for gains included in net income, net of tax	$ (70)	$ 139	$ 316
Changes in net unrealized gains on available-for-sale securities, net of tax	$ 21	$ 28	$ 30
Senior Preferred Stock
Preferred Stock, Dividends, Per Share, Cash Paid	$ 9,372.35	$ 12,015.34	$ 9,623.37