Variable Interest Entities (Details) - USD ($)		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
ASSETS
Cash		$ 906,000,000					$ 1,259,000,000				$ 906,000,000		$ 1,259,000,000	$ 1,126,000,000
Restricted cash		47,000,000					56,000,000				47,000,000		56,000,000
Mortgage loans held for sale		743,000,000					915,000,000				743,000,000		915,000,000
Accounts receivable, net		81,000,000					123,000,000				81,000,000		123,000,000
Servicing advances, net		691,000,000					694,000,000				691,000,000		694,000,000
Property and equipment, net		47,000,000					36,000,000				47,000,000		36,000,000
Other assets		257,000,000					208,000,000				257,000,000		208,000,000
Total assets		3,652,000,000	[1]				4,296,000,000				3,652,000,000	[1]	4,296,000,000
LIABILITIES
Accounts payable and accrued expenses		251,000,000					244,000,000				251,000,000		244,000,000
Debt		1,358,000,000					1,739,000,000				1,358,000,000		1,739,000,000
Other liabilities		137,000,000					70,000,000				137,000,000		70,000,000
Total liabilities		2,304,000,000	[1]				2,725,000,000				2,304,000,000	[1]	2,725,000,000
Company Involvement with Variable Interest Entity
Net income (loss)		(51,000,000)		$ (47,000,000)	$ (56,000,000)	$ 23,000,000	(32,000,000)	$ 218,000,000	$ (55,000,000)	$ (44,000,000)	$ (131,000,000)		87,000,000	164,000,000
Variable Interest Entities
Amount of loans originated from Realogy Corporation's affiliates (as a percent)											21.00%
Variable Interest Entity
ASSETS
Cash		80,000,000					85,000,000				$ 80,000,000		85,000,000
Restricted cash		18,000,000					23,000,000				18,000,000		23,000,000
Mortgage loans held for sale		389,000,000					378,000,000				389,000,000		378,000,000
Accounts receivable, net		5,000,000					8,000,000				5,000,000		8,000,000
Servicing advances, net		157,000,000					155,000,000				157,000,000		155,000,000
Property and equipment, net		1,000,000					1,000,000				1,000,000		1,000,000
Other assets		12,000,000					8,000,000				12,000,000		8,000,000
Total assets		662,000,000					658,000,000				662,000,000		658,000,000
LIABILITIES
Accounts payable and accrued expenses		14,000,000					16,000,000				14,000,000		16,000,000
Debt		456,000,000					443,000,000				456,000,000		443,000,000
Other liabilities		6,000,000					11,000,000				6,000,000		11,000,000
Total liabilities		476,000,000					470,000,000				476,000,000		470,000,000
PHH Home Loans | Variable Interest Entity
ASSETS
Cash		80,000,000					82,000,000				80,000,000		82,000,000
Restricted cash		5,000,000					3,000,000				5,000,000		3,000,000
Mortgage loans held for sale		389,000,000					378,000,000				389,000,000		378,000,000
Accounts receivable, net		5,000,000					8,000,000				5,000,000		8,000,000
Servicing advances, net		0					0				0		0
Property and equipment, net		1,000,000					1,000,000				1,000,000		1,000,000
Other assets		11,000,000					8,000,000				11,000,000		8,000,000
Total assets		491,000,000					480,000,000				491,000,000		480,000,000
Assets held as collateral	[2]	361,000,000					353,000,000				361,000,000		353,000,000
LIABILITIES
Accounts payable and accrued expenses		14,000,000					16,000,000				14,000,000		16,000,000
Debt		345,000,000					335,000,000				345,000,000		335,000,000
Other liabilities		6,000,000					10,000,000				6,000,000		10,000,000
Total liabilities	[3]	365,000,000					361,000,000				365,000,000		361,000,000
Company Involvement with Variable Interest Entity
Net income (loss)	[4]										28,000,000		16,000,000	43,000,000
PHH Corporation investment	[5]	57,000,000					57,000,000				57,000,000		57,000,000
Intercompany receivable	[5]	14,000,000					14,000,000				$ 14,000,000		14,000,000
Variable Interest Entities
Ownership percentage											50.10%
Ownership percentage by Realogy											49.90%
Required amount of Mortgage loans originated sold to unaffiliated third party investors per Agreement (as a percent)											15.00%
Originated residential mortgage loans											$ 7,900,000,000		7,400,000,000	9,300,000,000
Residential mortgage loans brokered or sold											$ 2,700,000,000		3,300,000,000	5,000,000,000
Amount of loans originated from Realogy Corporation's affiliates (as a percent)											91.00%
Outstanding commitments related to residential mortgage loans		207,000,000									$ 207,000,000
Period whose net income is used as multiplier to make cash payment											12 months
Period for which notice is to be given to terminate an operating agreement											2 years
Period of term loan considered to make cash payments											2 years
Period whose EBITDA is used as multiplier to calculate fair value											12 months
Distributions received											$ 10,000,000		4,000,000	40,000,000
PHH Home Loans | Variable Interest Entity | Unsecured subordinated Intercompany Line of Credit
Variable Interest Entities
Borrowing capacity											60,000,000
Intercompany line of credit		0					0				0		0
PSART | Variable Interest Entity
ASSETS
Cash		0					0				0		0
Restricted cash		13,000,000					20,000,000				13,000,000		20,000,000
Mortgage loans held for sale		0					0				0		0
Accounts receivable, net		0					0				0		0
Servicing advances, net		157,000,000					155,000,000				157,000,000		155,000,000
Property and equipment, net		0					0				0		0
Other assets		1,000,000					0				1,000,000		0
Total assets		171,000,000					175,000,000				171,000,000		175,000,000
Assets held as collateral	[2]	170,000,000					175,000,000				170,000,000		175,000,000
LIABILITIES
Accounts payable and accrued expenses		0					0				0		0
Debt		111,000,000					108,000,000				111,000,000		108,000,000
Other liabilities		0					0				0		0
Total liabilities	[3]	111,000,000					108,000,000				111,000,000		108,000,000
Company Involvement with Variable Interest Entity
Net income (loss)	[4]										(5,000,000)		(5,000,000)	$ 0
PHH Corporation investment	[5]	69,000,000					72,000,000				69,000,000		72,000,000
Intercompany receivable	[5]	$ 0					$ 0				0		$ 0
Variable Interest Entities
Distributions received											760,000,000
Contributions of Accounts Receivable											$ 758,000,000

[1] The Consolidated Balance Sheets include assets of variable interest entities which can be used only to settle the obligations and liabilities of variable interest entities which creditors or beneficial interest holders do not have recourse to PHH Corporation and subsidiaries as follows: December 31, 2015 2014ASSETS Cash and cash equivalents$80 $85Restricted cash18 23Mortgage loans held for sale389 378Accounts receivable, net5 8Servicing advances, net157 155Property and equipment, net1 1Other assets12 8Total assets$662 $658 LIABILITIES Accounts payable and accrued expenses$14 $16Debt456 443Other liabilities6 11Total liabilities$476 $470

[2] Represents amounts not available to pay the Company’s general obligations. See Note 10, “Debt and Borrowing Arrangements” for further information.

[3] Excludes intercompany payables.

[4] Includes adjustments for the elimination of intercompany transactions.

[5] Amounts are eliminated in the Consolidated Balance Sheets.