COMMITMENTS AND CONTINGENCIES - Legal Matters (Details) $ in Millions	Feb. 01, 2019 USD ($)	Aug. 28, 2018 USD ($)	Nov. 15, 2017 action	Aug. 23, 2017 action	Apr. 11, 2017 defendant patent	Mar. 09, 2016 patent	Sep. 30, 2018 lawsuit case
130 Patent
Legal matters
Number of patents infringed (patent) | patent						3
Number of defendants (defendant) | defendant					4
Gralise ANDA Filers
Legal matters
Number of patents infringed (patent) | patent					3
Number of defendants (defendant) | defendant					3
Company Vs. Purdue Companies | Settled Litigation
Legal matters
Other income (expense): | $		$ 30
Company Vs. Purdue Companies | Settled Litigation | Forecast
Legal matters
Other income (expense): | $	$ 32
Securities Class Action Lawsuit
Legal matters
Number of shareholder derivative actions filed (action) | action				3
Northern District of California
Legal matters
Number of shareholder derivative actions filed (action) | action			2
Multidistrict Opioid Litigation
Legal matters
Number of lawsuits (lawsuit)							16
Multidistrict Opioid Litigation | Nation Wide Cases where Plaintiffs Assert Opioid-drug Related Claims Against Similar Groups of Defendants
Legal matters
Number of industry-wide opioid litigation cases (case) | case							200
Multidistrict Opioid Litigation | Minimum
Legal matters
Number of industry-wide opioid litigation cases (case) | case							600
Federal Lawsuits
Legal matters
Number of lawsuits (lawsuit)							2
Northern District of Georgia
Legal matters
Number of lawsuits (lawsuit)							1
District of Arizona
Legal matters
Number of lawsuits (lawsuit)							1
State Opioid Litigation
Legal matters
Number of lawsuits (lawsuit)							13
Opiod Litigation - Texas
Legal matters
Number of lawsuits (lawsuit)							3
Opioid Litigation - Pennsylvania
Legal matters
Number of lawsuits (lawsuit)							3
Opioid Litigation - Missouri
Legal matters
Number of lawsuits (lawsuit)							1
Opioid Litigation - Nevada
Legal matters
Number of lawsuits (lawsuit)							2
Opioid Litigation Arkansas
Legal matters
Number of lawsuits (lawsuit)							1
Opioid Litigation Utah
Legal matters
Number of lawsuits (lawsuit)							3