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Potential Spinoff of the Health Care Business Narrative (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2014
Spinoff [Member]
Dec. 31, 2013
Spinoff [Member]
Restructuring Cost and Reserve        
Net Sales $ 5,278 $ 5,318   $ 1,600
Charges for workforce reductions and other exit costs     $ 7