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		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 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	$ 3	$ 5	$ 8	$ 3
Pretax income (loss) including direct costs to transact a sale	(10)	(3)	(10)	(11)
Discontinued Operation, Tax Effect of Discontinued Operation	0	(1)	0	(3)
Insurance Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	34	75	72	166
Pretax income (loss) including direct costs to transact a sale	(32)	9	(24)	18
Discontinued Operation, Tax Effect of Discontinued Operation	1	0	3	2
International Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	2	16	8	44
Pretax income (loss) including direct costs to transact a sale	13	(3)	15	(24)
Discontinued Operation, Tax Effect of Discontinued Operation	$ 4	$ (1)	$ 4	$ 2