Asset Impairment, Exit, Implementation And Integration Costs (Movement In The Severance Liability And Details Of Asset Impairment And Exit Costs) (Details) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011
Severance liability beginning balance	$ 26
Charges	3
Cash spent	(32)
Other	6
Severance liability ending balance	3
Severance [Member]
Severance liability beginning balance	26
Cash spent	(23)
Severance liability ending balance	3
Other [Member]
Severance liability beginning balance
Charges	3
Cash spent	(9)
Other	6
Severance liability ending balance