Goodwill and Other Intangible Assets (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Goodwill and Other Intangible Assets
Aggregate pre-tax amortization expense			$ 255	$ 266
Continuing Operations [Member]
Goodwill and Other Intangible Assets
Aggregate pre-tax amortization expense	62	62	255	247
Pre-tax amortization expense, 2013	52		52
Pre-tax amortization expense, 2014	348		348
Pre-tax amortization expense, 2015	366		366
Pre-tax amortization expense, 2016	318		318
Pre-tax amortization expense, 2017	187		187
Pre-tax amortization expense, 2018	$ 181		$ 181