Stock-Related Matters (Details)	1 Months Ended			12 Months Ended
	Jan. 31, 2016 USD ($) shares	Nov. 30, 2015 USD ($)	Mar. 31, 2015 shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($) agreement shares
Share Repurchases [Line Items]
Shares authorized for repurchase (in dollars)					$ 450,000,000
Aggregate amount of PHH's common stock repurchase				$ 78,000,000	200,000,000
Minimum ratio of consolidated indebtedness to consolidated EBITDA pursuant to the senior note indenture, restricted from paying dividends				6
Net worth threshold, base amount				$ 1,000,000,000
Ratio of indebtedness to tangible net worth				4.5
Aggregate restricted net assets of subsidiaries				$ 762,000,000
Accelerated Stock Repurchase Programs
Share Repurchases [Line Items]
Shares authorized for repurchase (in dollars)					$ 200,000,000
Number of separate ASR agreements to repurchase PHH's common stock | agreement					2
Repurchase of common stock (in shares) | shares			1,574,252		6,962,695
Uncollared ASR agreement
Share Repurchases [Line Items]
Percentage of shares delivered by financial institution					80.00%
Open Market Share Repurchase Program
Share Repurchases [Line Items]
Shares authorized for repurchase (in dollars)					$ 250,000,000
Aggregate amount of PHH's common stock repurchase				$ 77,000,000
Repurchase of common stock (in shares) | shares				4,841,267
Open market share repurchase program		$ 100,000,000
Subsequent Event | Open Market Share Repurchase Program
Share Repurchases [Line Items]
Aggregate amount of PHH's common stock repurchase	$ 23,000,000
Repurchase of common stock (in shares) | shares	1,508,772
Open market share repurchase program	$ 100,000,000