Commitments and Contingencies	3 Months Ended
Apr. 02, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES In addition to the discussions below, we have pending certain other legal actions and claims incurred in the normal course of business. We record accruals for such contingencies when it is probable that a liability will be incurred and the amount of the loss can be reasonably estimated. As of April 2, 2016, we have determined that the liabilities associated with certain litigation matters are probable and can be reasonably estimated. We have accrued for these matters and will continue to monitor each related legal issue and adjust accruals for new information and further development. Other than what is disclosed below, we do not expect the outcome of the litigation matters to which we are currently subject to, individually or in the aggregate, have a material adverse effect on our financial condition, results of operations, or cash flows. Eltroxin During October and November 2011, nine applications to certify a class action lawsuit were filed in various courts in Israel related to Eltroxin, a prescription thyroid medication manufactured by a third party and distributed in Israel by our subsidiary, Perrigo Israel Agencies Ltd. The respondents included our subsidiaries, Perrigo Israel Pharmaceuticals Ltd. and/or Perrigo Israel Agencies Ltd., the manufacturers of the product, and various healthcare providers who provide healthcare services as part of the compulsory healthcare system in Israel. One of the applications was dismissed and the remaining eight applications were consolidated into one application. The applications arose from the 2011 launch of a reformulated version of Eltroxin in Israel. The consolidated application generally alleges that the respondents (a) failed to timely inform patients, pharmacists and physicians about the change in the formulation; and (b) failed to inform physicians about the need to monitor patients taking the new formulation in order to confirm patients were receiving the appropriate dose of the drug. As a result, claimants allege they incurred the following damages: (a) purchases of product that otherwise would not have been made by patients had they been aware of the reformulation; (b) adverse events to some patients resulting from an imbalance of thyroid functions that could have been avoided; and (c) harm resulting from the patients' lack of informed consent prior to the use of the reformulation. Several hearings on whether or not to certify the consolidated application took place in December 2013 and January 2014. On May 17, 2015, the District Court certified the motion against Perrigo Israel Agencies Ltd. and dismissed it against the remaining respondents, including Perrigo Israel Pharmaceuticals Ltd. On June 16, 2015, Perrigo submitted a motion for permission to appeal the decision to certify to the Israeli Supreme Court together with a motion to stay the proceedings of the class action until the motion for permission to appeal is adjudicated. Perrigo has filed its statement of defense to the underlying proceedings and the underlying proceedings have been stayed pending a decision on the motion to appeal. The hearing on Perrigo’s motion to appeal the decision to certify the class action is scheduled for July 11, 2016. At this stage, we cannot reasonably predict the outcome or the liability, if any, associated with these claims. Tysabri^® Product Liability Lawsuits Perrigo and collaborator Biogen are co-defendants in product liability lawsuits arising out of the occurrence of Progressive Multifocal Leukoencephalopathy, a serious brain infection, and serious adverse events, including deaths, which occurred in patients taking Tysabri^®. Perrigo and Biogen will each be responsible for 50% of losses and expenses arising out of any Tysabri^® product liability claims. While these lawsuits will be vigorously defended, management cannot predict how these cases will be resolved. Adverse results in one or more of these lawsuits could result in substantial judgments against us.

COMMITMENTS AND CONTINGENCIES

In addition to the discussions below, we have pending certain other legal actions and claims incurred in the normal course of business. We record accruals for such contingencies when it is probable that a liability will be incurred and the amount of the loss can be reasonably estimated. As of April 2, 2016, we have determined that the liabilities associated with certain litigation matters are probable and can be reasonably estimated. We have accrued for these matters and will continue to monitor each related legal issue and adjust accruals for new information and further development. Other than what is disclosed below, we do not expect the outcome of the litigation matters to which we are currently subject to, individually or in the aggregate, have a material adverse effect on our financial condition, results of operations, or cash flows.

Eltroxin

During October and November 2011, nine applications to certify a class action lawsuit were filed in various courts in Israel related to Eltroxin, a prescription thyroid medication manufactured by a third party and distributed in Israel by our subsidiary, Perrigo Israel Agencies Ltd. The respondents included our subsidiaries, Perrigo Israel Pharmaceuticals Ltd. and/or Perrigo Israel Agencies Ltd., the manufacturers of the product, and various healthcare providers who provide healthcare services as part of the compulsory healthcare system in Israel.

One of the applications was dismissed and the remaining eight applications were consolidated into one application. The applications arose from the 2011 launch of a reformulated version of Eltroxin in Israel. The consolidated application generally alleges that the respondents (a) failed to timely inform patients, pharmacists and physicians about the change in the formulation; and (b) failed to inform physicians about the need to monitor patients taking the new formulation in order to confirm patients were receiving the appropriate dose of the drug. As a result, claimants allege they incurred the following damages: (a) purchases of product that otherwise would not have been made by patients had they been aware of the reformulation; (b) adverse events to some patients resulting from an imbalance of thyroid functions that could have been avoided; and (c) harm resulting from the patients' lack of informed consent prior to the use of the reformulation.

Several hearings on whether or not to certify the consolidated application took place in December 2013 and January 2014. On May 17, 2015, the District Court certified the motion against Perrigo Israel Agencies Ltd. and dismissed it against the remaining respondents, including Perrigo Israel Pharmaceuticals Ltd.

On June 16, 2015, Perrigo submitted a motion for permission to appeal the decision to certify to the Israeli Supreme Court together with a motion to stay the proceedings of the class action until the motion for permission to appeal is adjudicated. Perrigo has filed its statement of defense to the underlying proceedings and the underlying proceedings have been stayed pending a decision on the motion to appeal. The hearing on Perrigo’s motion to appeal the decision to certify the class action is scheduled for July 11, 2016. At this stage, we cannot reasonably predict the outcome or the liability, if any, associated with these claims.

Tysabri^® Product Liability Lawsuits

Perrigo and collaborator Biogen are co-defendants in product liability lawsuits arising out of the occurrence of Progressive Multifocal Leukoencephalopathy, a serious brain infection, and serious adverse events, including deaths, which occurred in patients taking Tysabri^®. Perrigo and Biogen will each be responsible for 50% of losses and expenses arising out of any Tysabri^® product liability claims. While these lawsuits will be vigorously defended, management cannot predict how these cases will be resolved. Adverse results in one or more of these lawsuits could result in substantial judgments against us.