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Contingencies - Fosamax Litigation - Narrative (Details) - Fosamax $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2014 legalmatter | Mar. 31, 2018 legalmatter | Dec. 31, 2014 USD ($) | Jul. 31, 2015 legalmatter | Nov. 30, 2013 legalmatter
Loss Contingencies [Line Items] |  |  |  |  |
Loss contingency, pending claims, number (in legal matters) |  | 4,040 |  |  |
ONJ Litigation |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss contingency, pending claims, number (in legal matters) |  | 10 |  |  |
Litigation settlement amount to other party | $ |  |  | $ 27.3 |  |
Percentage of participation in litigation settlement (as percent) |  |  | 95.00% |  |
Femur Fracture Litigation |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss contingency, pending claims, number (in legal matters) |  | 4,030 |  |  |
Femur Fracture Litigation | Federal |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss contingency, pending claims, number (in legal matters) |  | 540 |  |  |
Loss contingency, claims dismissed, number (in legal matters) | 650 | 510 |  |  |
Loss contingency, claims on appeal, number (in legal matters) |  | 515 |  |  |
Femur Fracture Litigation | New Jersey state court |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss contingency, pending claims, number (in legal matters) |  | 2,700 |  |  |
Loss contingency, initial cases selected for review, number (in legal matters) |  | 30 |  |  |
Loss contingency, subsequent cases selected for review, number (in legal matters) | 50 |  |  | 25 | 50
Femur Fracture Litigation | California state court |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss contingency, pending claims, number (in legal matters) |  | 280 |  |  |
Loss contingency, initial cases selected for review, number (in legal matters) | 10 |  |  |  |
Femur Fracture Litigation | Other state courts |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loss contingency, pending claims, number (in legal matters) |  | 4 |  |  |

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