Separation Adjustments And Transactions With Former Parent And Subsidiaries (Narrative) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended			6 Months Ended	12 Months Ended			6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010	Jun. 30, 2011 Separation of Business [Member]	Dec. 31, 2010 Separation of Business [Member]	Jun. 30, 2011 Guarantees [Member]	Jun. 30, 2011 Standby Letters of Credit [Member] Realogy [Member]	Jun. 30, 2011 Realogy [Member]	Jun. 30, 2011 Cendant [Member]
Responsible liability for separation agreement								62.50%	37.50%
Liabilities assumed				$ 56	$ 78
Standby letter of credit							100
Total liabilities	6,715		6,499	56
Tax liabilities assumed	40
Previously sold businesses of Cendant assumed	13
Other contingent and corporate liabilities assumed	2
Guarantee amount over contingent liability assumed	1
Current due to former Parent and subsidiaries	27		47
Long-term due to former Parent and subsidiaries	28		30
Other current liabilities	619		619			1
Due from former Parent and subsidiaries	3		4
Payment for tax liabilities including final interest payable, net	$ 71	$ 44