Fair Value Cash Flow Hedge Income Statement Location (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Cash Flow Hedge Gain (Loss) Reclassified to Income Statement Locations Paragraph Details [Abstract]
Gains (Losses) On Interest Rate Swap Agreements	$ 80	$ 10	$ 113	$ 30
Foreign Exchange Mark to Market Expense (Income)	4	(18)	(34)	2
Foreign Currency Exchange Contracts [Member]
Cash Flow Hedge Income Statement Location [Line Items]
Product sales	10	(7)	26	(13)
Costs of products sold	(8)	11	(24)	20
Cash Flow Hedge Gain Loss Reclassified To Selling General And Administrative Expense Net	(2)	1	4	(2)
Commodity Contracts [Member]
Cash Flow Hedge Income Statement Location [Line Items]
Costs of products sold	$ 1	$ (1)	$ 1	$ (4)