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Contingencies (Trial Results Narrative) (Details) - Jul. 24, 2015 - Subsequent Event [Member] $ in Millions | USD ($) | cases | cases
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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 |

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- Definition Amount of damages paid to the plaintiff in the legal matter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
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