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Contingencies and Environmental Liabilities - Propecia/Proscar Litigation - Textual (Detail)
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12 Months Ended |
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Dec. 31, 2013
LegalMatter
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Propecia [Member]
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| Loss Contingencies [Line Items] | |
| Loss contingency, pending claims number | 1,140 |
| Number of plaintiff groups | 1,390 |
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PropeciaCancer [Member]
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| Loss Contingencies [Line Items] | |
| Number of plaintiff groups | 20 |