Selected Quarterly Financial Data-(unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Selected Quarterly Financial Information [Abstract]
Net revenues	$ 123	$ 169	$ 237	$ 261	$ 180	$ 152	$ 196	$ 111	$ 790	$ 639	$ 1,200
Income (loss) from continuing operations before income taxes	(83)	(87)	(74)	31	(41)	(129)	(21)	(93)	(213)	(284)	140
Net income (loss)	(51)	(47)	(56)	23	(32)	218	(55)	(44)	(131)	87	164
Net income (loss) attributable to PHH Corporation	$ (54)	$ (50)	$ (62)	$ 21	$ (33)	$ 215	$ (59)	$ (42)	$ (145)	$ 81	$ 135
Basic (loss) earnings per share:
From continuing operations (in dollars per share)					$ (0.62)	$ (1.64)	$ (0.23)	$ (1.01)	$ (2.62)	$ (3.47)	$ 1.21
From discontinued operations (in dollars per share)					(0.04)	5.64	(0.79)	0.28	0.00	4.94	1.15
Total attributable to PHH Corporation (in dollars per share)	$ (0.92)	$ (0.84)	$ (1.20)	$ 0.40	(0.66)	4.00	(1.02)	(0.73)	(2.62)	1.47	2.36
Diluted (loss) earnings per share:
From continuing operations (in dollars per share)					(0.62)	(1.64)	(0.23)	(1.01)	(2.62)	(3.47)	1.05
From discontinued operations (in dollars per share)					(0.04)	5.64	(0.79)	0.28	0.00	4.94	1.01
Total attributable to PHH Corporation (in dollars per share)	$ (0.92)	$ (0.84)	$ (1.20)	$ 0.34	$ (0.66)	$ 4.00	$ (1.02)	$ (0.73)	$ (2.62)	$ 1.47	$ 2.06