Intangible Assets (Intangible Assets Subject to Amortization) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 2,915	$ 3,111
Accumulated Amortization	(1,674)	(1,776)
Net Carrying Value	1,241	1,335
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Gross Carrying Value	32	234
Accumulated Amortization	(1)	(230)
Net Carrying Value	31	4
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	1,168	1,168
Accumulated Amortization	(729)	(681)
Net Carrying Value	439	487
Reacquired Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	1,571	1,571
Accumulated Amortization	(851)	(785)
Net Carrying Value	720	786
Other Finite Lived Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	144	138
Accumulated Amortization	(93)	(80)
Net Carrying Value	51	58
Finite Lived Intangible Assets Excluding Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	2,883	2,877
Accumulated Amortization	(1,673)	(1,546)
Net Carrying Value	$ 1,210	$ 1,331
Minimum [Member] | Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Minimum [Member] | Reacquired Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	9 years
Minimum [Member] | Other Finite Lived Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	9 years
Maximum [Member] | Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	37 years
Maximum [Member] | Reacquired Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	14 years
Maximum [Member] | Other Finite Lived Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years