Basis Of Presentation Investment in PHH Home Loans (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Equity earnings from equity method investment	$ 0	$ 5	$ (3)	$ 5
PHH Home Loans
Schedule of Equity Method Investments [Line Items]
Equity method investment ownership percentage	49.90%		49.90%
Equity earnings from equity method investment	$ 0	$ 3	$ (4)	3
Cash dividends from equity method investment			0	$ 0
Carrying value of equity method investments	$ 55		$ 55		$ 59

Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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