Discontinued and Held-for-sale Operations Discontinued and Held-for-sale Operations (Selected Income Statement Information for Discontinued Operations) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Mortgage Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	$ 0	$ (8)	$ 8	$ (5)
Pretax income (loss) including direct costs to transact a sale	0	(14)	(10)	(25)
Discontinued Operation, Tax Effect of Discontinued Operation	(7)	(4)	(7)	(7)
Insurance Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	38	35	110	201
Pretax income (loss) including direct costs to transact a sale	(12)	3	(36)	21
Discontinued Operation, Tax Effect of Discontinued Operation	0	1	3	3
International Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	1	7	9	50
Pretax income (loss) including direct costs to transact a sale	(4)	(5)	11	(30)
Discontinued Operation, Tax Effect of Discontinued Operation	$ (3)	$ (2)	$ 1	$ (1)