Contingencies (Trial Results Narrative) (Details) (Subsequent Event [Member], USD $) In Millions, unless otherwise specified	196 Months Ended	127 Months Ended	106 Months Ended
	Apr. 20, 2015 cases	Apr. 20, 2015	Apr. 20, 2015 cases
Health Care Cost Recovery [Member]
Loss Contingencies [Line Items]
Litigation, Verdict Reversed	1
Non Engle Progeny Cases [Member] | Since January1999 [Member]
Loss Contingencies [Line Items]
Loss Contingency, Claims Decided	56
Loss Contingency, Claims Decided Unfavorable, Number	18
Loss Contingency, Claims Resolved	15
Loss Contingency, Claims Decided Favorable, Number	38
Engle and Non-Engle Cases [Member] | Since October 2004 [Member]
Loss Contingencies [Line Items]
Judgment Interest Paid Aggregate		$ 144.0
Loss Contingency, Damages Paid, Value		271.0
Engle Progeny Cases [Member] | Since October 2004 [Member]
Loss Contingencies [Line Items]
Judgment Interest Paid Aggregate		2.5
Loss Contingency, Damages Paid, Value		$ 13.8
Engle Progeny Cases [Member] | Since July 2006 [Member]
Loss Contingencies [Line Items]
Loss Contingency, Claims Decided			77
Loss Contingency, Claims Decided Unfavorable, Number			41
Loss Contingency, Claims Decided Favorable, Number			36