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Litigation and Environmental Matters (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Loss Contingencies  
Maximum expected cleanup exposure for individual site $ 4
Maximum expected cleanup exposure in aggregate 15
Other legal proceedings and environmental exposures
 
Loss Contingencies  
Other legal proceedings or environmental exposure, minimum 65
Other legal proceedings or environmental exposure, maximum 90
Recorded reserve balance for legal proceedings and exposures $ 75