Variable Interest Entities (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010	Dec. 31, 2009
ASSETS
Cash	$ 84	$ 195	$ 259	$ 150
Restricted Cash	528	531
Mortgage loans held for sale	2,699	4,329
Accounts receivable, net	729	573
Net investment in fleet leases	3,414	3,492
Property, plant and equipment, net	59	46
Other assets	599	637
Total assets	9,335	11,270
LIABILITIES
Accounts payable and accrued expenses	437	521
Debt	6,561	8,085
Other liabilities	274	358
Total liabilities	7,893	9,692
Variable Interest Entities
Mortgage loans originated from Realogy Corporation's affiliates (as a percent)	22.00%
Variable Interest Entity | PHH Home Loans
ASSETS
Cash	17	40
Restricted Cash	2
Mortgage loans held for sale	512	384
Accounts receivable, net	17	14
Property, plant and equipment, net	1	1
Other assets	19	10
Total assets	568	449
Assets held as collateral	447	331
LIABILITIES
Accounts payable and accrued expenses	18	20
Debt	417	304
Other liabilities	10	5
Total liabilities	445	329
Variable Interest Entities
Mortgage loans originated from Realogy Corporation's affiliates (as a percent)	84.00%
Variable Interest Entity | Chesapeake and D.L. Peterson Trust
ASSETS
Cash	2	4
Restricted Cash	215	202
Accounts receivable, net	64	50
Net investment in fleet leases	2,709	2,854
Other assets	9	12
Total assets	2,999	3,122
Assets held as collateral	2,988	3,106
LIABILITIES
Accounts payable and accrued expenses	2	3
Debt	2,448	2,577
Total liabilities	2,450	2,580
Variable Interest Entity | FLRT and PHH Lease Receivables LP
ASSETS
Restricted Cash	42	39
Net investment in fleet leases	505	502
Other assets	2	18
Total assets	549	559
Assets held as collateral	517	506
LIABILITIES
Accounts payable and accrued expenses	2	16
Debt	453	450
Total liabilities	455	466
Variable Interest Entity | Mortgage Securitization Trust
ASSETS
Other assets	32	42
Total assets	32	42
LIABILITIES
Debt	25	30
Total liabilities	25	30
Variable Interest Entity
ASSETS
Cash	22	47
Restricted Cash	259	241
Mortgage loans held for sale	522	389
Accounts receivable, net	81	64
Net investment in fleet leases	3,214	3,356
Property, plant and equipment, net	1	1
Other assets	62	82
Total assets	4,161	4,180
LIABILITIES
Accounts payable and accrued expenses	23	38
Debt	3,352	3,367
Other liabilities	10	5
Total liabilities	$ 3,385	$ 3,410