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Contingencies (Health Care Cost Recovery Litigation Narrative) (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Nov. 30, 1998 USD ($) state | Sep. 30, 2016 USD ($) case | Sep. 30, 2015 USD ($) | Sep. 30, 2016 USD ($) case | Sep. 30, 2015 USD ($) | Oct. 26, 2015 case | Oct. 27, 2014 case
Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of cases pending |  |  |  |  |  | 1 | 1
Number of states with settled litigation | state | 46 |  |  |  |  |  |
State Settlement Agreements annual payments | $ | $ 9,400,000,000 |  |  |  |  |  |
State Settlement Agreements attorney fees annual cap | $ | $ 500,000,000 |  |  |  |  |  |
Cost of Sales [Member] | Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation settlement, amount | $ |  | $ (1,200,000,000) | $ (1,100,000,000) | $ (3,600,000,000) | $ (3,300,000,000) |  |
Cost of Sales [Member] | Health Care Cost Recovery Actions, 2004-2014 NPM Adjustment [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Litigation settlement, amount | $ |  |  | $ 126,000,000 | $ (12,000,000) | $ 126,000,000 |  |
New York [Member] | Health Care Cost Recovery Actions, Medicare as Secondary Payer Case [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of claims dismissed |  |  |  | 2 |  |  |
Florida [Member] | Health Care Cost Recovery Actions, Medicare as Secondary Payer Case [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of claims dismissed |  |  |  | 2 |  |  |
Massachusetts [Member] | Health Care Cost Recovery Actions, Medicare as Secondary Payer Case [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of claims dismissed |  |  |  | 1 |  |  |
Canada [Member] | Threatened Litigation [Member] | Health Care Cost Recovery Actions [Member] |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of cases pending |  | 10 |  | 10 |  |  |

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- Definition Litigation Settlement, Annual Payment Amount + References No definition available. + Details
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- Definition Number of pending claims pertaining to a loss contingency. + References Reference 1: 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 + Details
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