Guarantor/Non-Guarantor Supplemental Financial Information - Balance Sheet (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
ASSETS
Cash and cash equivalents	$ 376	$ 143	$ 192	$ 255
Trade receivables, net	122	120
Relocation receivables	324	378
Relocation properties held for sale	9	11
Deferred income taxes	54	66
Intercompany note receivable	0	0
Intercompany receivables	0	0
Other current assets	93	88
Total current assets	978	806
Property and equipment, net	188	165	186
Goodwill	3,304	3,299	3,296	3,262
Trademarks	732	732
Franchise agreements, net	1,629	1,697
Other intangibles, net	399	439
Deferred income taxes	0	0
Other non-current assets	215	212
Intercompany long-term receivables	0	0
Investment in subsidiaries	0	0
Total assets	7,445	7,350	7,569
LIABILITIES AND EQUITY (DEFICIT)
Accounts payable	148	184
Securitization obligations	261	327
Deferred income taxes		0
Due to former parent	69	80
Revolving credit facility and current portion of long-term debt	110	325
Accrued expenses and other current liabilities	427	520
Intercompany notes payable	0	0
Intercompany payables	0	0
Total current liabilities	1,015	1,436
Long-term debt	4,256	6,825
Deferred income taxes	444	421
Other non-current liabilities	211	167
Intercompany long-term liabilities	0	0
Accumulated losses of subsidiaries in excess of investment		0
Total liabilities	5,926	8,849
Total equity	1,519	(1,499)	(1,063)	(972)
Total liabilities and equity	7,445	7,350
Realogy Holdings
ASSETS
Cash and cash equivalents	0	0	0	0
Trade receivables, net	0	0
Relocation receivables	0	0
Relocation properties held for sale	0	0
Deferred income taxes	0	0
Intercompany note receivable	0	0
Intercompany receivables	0	0
Other current assets	0	0
Total current assets	0	0
Property and equipment, net	0	0
Goodwill	0	0
Trademarks	0	0
Franchise agreements, net	0	0
Other intangibles, net	0	0
Deferred income taxes	0	0
Other non-current assets	0	0
Intercompany long-term receivables	0	0
Investment in subsidiaries	1,519	0
Total assets	1,519	0
LIABILITIES AND EQUITY (DEFICIT)
Accounts payable	0	0
Securitization obligations	0	0
Deferred income taxes		0
Due to former parent	0	0
Revolving credit facility and current portion of long-term debt	0	0
Accrued expenses and other current liabilities	0	0
Intercompany notes payable	0	0
Intercompany payables	0	0
Total current liabilities	0	0
Long-term debt	0	0
Deferred income taxes	0	0
Other non-current liabilities	0	0
Intercompany long-term liabilities	0	0
Accumulated losses of subsidiaries in excess of investment		1,499
Total liabilities	0	1,499
Total equity	1,519	(1,499)
Total liabilities and equity	1,519	0
Realogy Intermediate
ASSETS
Cash and cash equivalents	0	0	0	0
Trade receivables, net	0	0
Relocation receivables	0	0
Relocation properties held for sale	0	0
Deferred income taxes	0	0
Intercompany note receivable	0	0
Intercompany receivables	0	0
Other current assets	0	0
Total current assets	0	0
Property and equipment, net	0	0
Goodwill	0	0
Trademarks	0	0
Franchise agreements, net	0	0
Other intangibles, net	0	0
Deferred income taxes	0	0
Other non-current assets	0	0
Intercompany long-term receivables	0	0
Investment in subsidiaries	1,519	0
Total assets	1,519	0
LIABILITIES AND EQUITY (DEFICIT)
Accounts payable	0	0
Securitization obligations	0	0
Deferred income taxes		0
Due to former parent	0	0
Revolving credit facility and current portion of long-term debt	0	0
Accrued expenses and other current liabilities	0	0
Intercompany notes payable	0	0
Intercompany payables	0	0
Total current liabilities	0	0
Long-term debt	0	0
Deferred income taxes	0	0
Other non-current liabilities	0	0
Intercompany long-term liabilities	0	0
Accumulated losses of subsidiaries in excess of investment		1,499
Total liabilities	0	1,499
Total equity	1,519	(1,499)
Total liabilities and equity	1,519	0
Realogy Group
ASSETS
Cash and cash equivalents	221	2	69	194
Trade receivables, net	0	0
Relocation receivables	0	0
Relocation properties held for sale	0	0
Deferred income taxes	8	14
Intercompany note receivable	0	0
Intercompany receivables	0	0
Other current assets	9	8
Total current assets	238	24
Property and equipment, net	41	17
Goodwill	0	0
Trademarks	0	0
Franchise agreements, net	0	0
Other intangibles, net	0	0
Deferred income taxes	624	604
Other non-current assets	51	68
Intercompany long-term receivables	0	0
Investment in subsidiaries	8,472	8,216
Total assets	9,426	8,929
LIABILITIES AND EQUITY (DEFICIT)
Accounts payable	6	22
Securitization obligations	0	0
Deferred income taxes		0
Due to former parent	69	80
Revolving credit facility and current portion of long-term debt	110	267
Accrued expenses and other current liabilities	137	202
Intercompany notes payable	0	0
Intercompany payables	(2,481)	(2,222)
Total current liabilities	2,803	2,793
Long-term debt	4,256	6,825
Deferred income taxes	0	0
Other non-current liabilities	116	83
Intercompany long-term liabilities	732	727
Accumulated losses of subsidiaries in excess of investment		0
Total liabilities	7,907	10,428
Total equity	1,519	(1,499)
Total liabilities and equity	9,426	8,929
Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	74	80	74	24
Trade receivables, net	77	75
Relocation receivables	23	14
Relocation properties held for sale	9	11
Deferred income taxes	46	53
Intercompany note receivable	15	6
Intercompany receivables	2,434	2,216
Other current assets	64	64
Total current assets	2,742	2,519
Property and equipment, net	144	145
Goodwill	3,304	3,299
Trademarks	732	732
Franchise agreements, net	1,629	1,697
Other intangibles, net	399	439
Deferred income taxes	0	0
Other non-current assets	87	85
Intercompany long-term receivables	732	727
Investment in subsidiaries	248	168
Total assets	10,017	9,811
LIABILITIES AND EQUITY (DEFICIT)
Accounts payable	131	158
Securitization obligations	0	0
Deferred income taxes		0
Due to former parent	0	0
Revolving credit facility and current portion of long-term debt	0	50
Accrued expenses and other current liabilities	255	282
Intercompany notes payable	20	19
Intercompany payables	0	0
Total current liabilities	406	509
Long-term debt	0	0
Deferred income taxes	1,069	1,025
Other non-current liabilities	70	61
Intercompany long-term liabilities	0	0
Accumulated losses of subsidiaries in excess of investment		0
Total liabilities	1,545	1,595
Total equity	8,472	8,216
Total liabilities and equity	10,017	9,811
Non-Guarantor Subsidiaries
ASSETS
Cash and cash equivalents	82	67	51	42
Trade receivables, net	45	45
Relocation receivables	301	364
Relocation properties held for sale	0	0
Deferred income taxes	0	0
Intercompany note receivable	20	19
Intercompany receivables	47	6
Other current assets	20	16
Total current assets	515	517
Property and equipment, net	3	3
Goodwill	0	0
Trademarks	0	0
Franchise agreements, net	0	0
Other intangibles, net	0	0
Deferred income taxes	1	0
Other non-current assets	77	59
Intercompany long-term receivables	0	0
Investment in subsidiaries	0	0
Total assets	596	579
LIABILITIES AND EQUITY (DEFICIT)
Accounts payable	12	10
Securitization obligations	261	327
Deferred income taxes		1
Due to former parent	0	0
Revolving credit facility and current portion of long-term debt	0	8
Accrued expenses and other current liabilities	35	36
Intercompany notes payable	15	6
Intercompany payables	0	0
Total current liabilities	323	388
Long-term debt	0	0
Deferred income taxes	0	0
Other non-current liabilities	25	23
Intercompany long-term liabilities	0	0
Accumulated losses of subsidiaries in excess of investment		0
Total liabilities	348	411
Total equity	248	168
Total liabilities and equity	596	579
Eliminations
ASSETS
Cash and cash equivalents	(1)	(6)	(2)	(5)
Trade receivables, net	0	0
Relocation receivables	0	0
Relocation properties held for sale	0	0
Deferred income taxes	0	(1)
Intercompany note receivable	(35)	(25)
Intercompany receivables	(2,481)	(2,222)
Other current assets	0	0
Total current assets	(2,517)	(2,254)
Property and equipment, net	0	0
Goodwill	0	0
Trademarks	0	0
Franchise agreements, net	0	0
Other intangibles, net	0	0
Deferred income taxes	(625)	(604)
Other non-current assets	0	0
Intercompany long-term receivables	(732)	(727)
Investment in subsidiaries	(11,758)	(8,384)
Total assets	(15,632)	(11,969)
LIABILITIES AND EQUITY (DEFICIT)
Accounts payable	(1)	(6)
Securitization obligations	0	0
Deferred income taxes		(1)
Due to former parent	0	0
Revolving credit facility and current portion of long-term debt	0	0
Accrued expenses and other current liabilities	0	0
Intercompany notes payable	(35)	(25)
Intercompany payables	2,481	2,222
Total current liabilities	(2,517)	(2,254)
Long-term debt	0	0
Deferred income taxes	(625)	(604)
Other non-current liabilities	0	0
Intercompany long-term liabilities	(732)	(727)
Accumulated losses of subsidiaries in excess of investment		(2,998)
Total liabilities	(3,874)	(6,583)
Total equity	(11,758)	(5,386)
Total liabilities and equity	$ (15,632)	$ (11,969)