Contingencies (Trial Results Narrative) (Details) - Jul. 24, 2015 - Subsequent Event [Member] $ in Millions	USD ($)	cases	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
Loss Contingency, Damages Paid, Value | $	276
Engle Progeny Cases [Member] | Since October 2004 [Member]
Loss Contingencies [Line Items]
Judgment Interest Paid Aggregate | $	3
Loss Contingency, Damages Paid, Value | $	$ 19
Engle Progeny Cases [Member] | Since July 2006 [Member]
Loss Contingencies [Line Items]
Litigation, Verdict Reversed		2
Loss Contingency, Claims Decided		81
Loss Contingency, Claims Decided Unfavorable, Number		43
Loss Contingency, Claims Decided Favorable, Number		36