Contingencies (Medical Monitoring Class Actions Narrative) (Details) (Medical Monitoring Class Actions [Member], Medical Monitoring Class Actions [Member], USD $) In Millions, unless otherwise specified	12 Months Ended		6 Months Ended
	Dec. 31, 2011	Jun. 30, 2014 cases	Jun. 30, 2014 Donovan [Member]
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number		2
Loss Contingency, Claims Dismissed, Number	2
Loss Contingency, Damages Sought, Value			$ 190