Goodwill and Other Identifiable Intangible Assets (Additional Information) (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	Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Line Items]
Carrying amount of acquired trademarks with indefinite lives	$ 320		$ 320		$ 316
Aggregate amortization expense of identifiable intangible assets	27	30	83	92
Estimated future amortization of identifiable intangible assets for the second quarter of 2012			30
Estimated future amortization of identifiable intangible assets in 2013	105		105
Estimated future amortization of identifiable intangible assets in 2016	85		85
Estimated future amortization of identifiable intangible assets in 2017	85		85
Maximum [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Estimated future amortization of identifiable intangible assets in 2014	105		105
Estimated future amortization of identifiable intangible assets in 2015	$ 105		$ 105