Earnings Per Share (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share
Net (loss) income attributable to PHH Corporation (in dollars)	$ (52)	$ (42)	$ 90	$ (24)
Weighted-average common shares outstanding - basic (in shares)	57,383,139	56,842,323	57,318,131	56,768,027
Effect of potentially dilutive securities:
Share-based payment arrangements (in shares)			207,572
Conversion of debt securities (in shares)			7,977,723
Weighted-average common shares outstanding - diluted (in shares)	57,383,139	56,842,323	65,503,426	56,768,027
Basic (loss) earnings per share attributable to PHH Corporation (in dollars per share)	$ (0.90)	$ (0.74)	$ 1.58	$ (0.42)
Diluted (loss) earnings per share attributable to PHH Corporation (in dollars per share)	$ (0.90)	$ (0.74)	$ 1.38	$ (0.42)
Contingently issuable shares
Contingently issuable shares for which the contingency has not been met	724,598		724,598
Outstanding stock-based compensation awards
Anti-dilutive securities
Anti-dilutive securities excluded from the computation of dilutive securities (in shares)	2,037,307	2,356,488	688,338	2,356,488
Debt securities
Anti-dilutive securities
Anti-dilutive securities excluded from the computation of dilutive securities (in shares)	8,274,740	5,494,884		3,750,848