Organization	3 Months Ended
Nov. 30, 2015
Organization [Abstract]
Organization	Note 1. Organization Walgreens Boots Alliance, Inc. (“Walgreens Boots Alliance”) and subsidiaries are a global pharmacy-led health and wellbeing enterprise. Its operations are conducted through three reportable segments (Retail Pharmacy USA, Retail Pharmacy International and Pharmaceutical Wholesale). See Note 19, Segment Reporting for further information. On December 31, 2014, Walgreens Boots Alliance became the successor of Walgreen Co. (“Walgreens”) pursuant to a merger designed to effect a reorganization of Walgreens into a holding company structure (the “Reorganization”). Pursuant to the Reorganization, Walgreens became a wholly-owned subsidiary of Walgreens Boots Alliance, a Delaware corporation formed for the purposes of the Reorganization, and each issued and outstanding share of Walgreens common stock converted on a one-to-one basis into Walgreens Boots Alliance common stock. References to the “Company” refer to Walgreens Boots Alliance and its subsidiaries from and after the effective time of the Reorganization on December 31, 2014 and, prior to that time, to the predecessor registrant Walgreens and its subsidiaries, except as otherwise indicated or the context otherwise requires. On December 31, 2014, following the completion of the Reorganization, Walgreens Boots Alliance completed the acquisition of the remaining 55% of Alliance Boots GmbH (“Alliance Boots”) that Walgreens did not previously own (the “Second Step Transaction”) in exchange for £3.133 billion in cash and approximately 144.3 million shares of Walgreens Boots Alliance common stock. Alliance Boots became a consolidated subsidiary and ceased being accounted for under the equity method immediately upon completion of the Second Step Transaction. For financial reporting and accounting purposes, Walgreens Boots Alliance was the acquirer of Alliance Boots. The consolidated financial statements (and other data) reflect the results of operations and financial position of Walgreens and its subsidiaries for periods prior to December 31, 2014 and of Walgreens Boots Alliance and its subsidiaries for periods from and after the effective time of the Reorganization on December 31, 2014. As part of the Second Step Transaction, the Company acquired the remaining 27.5% noncontrolling interest in Walgreens Boots Alliance Development GmbH (“WBAD”), a global sourcing enterprise established by the Company and Alliance Boots. The Company already owned a 50% direct ownership in WBAD and indirectly owned an additional ownership interest through its previous 45% investment in Alliance Boots, representing a direct and indirect economic interest of 72.5%. The Company’s acquisition of the remaining 27.5% effective ownership in WBAD as part of the Second Step Transaction was accounted for as an equity transaction as it has historically been consolidated by the Company. On January 1, 2015, WBAD Holdings Limited sold 320 common shares of WBAD, representing approximately 5% of the equity interests in WBAD, to Alliance Healthcare Italia Distribuzione S.p.A. (“AHID”), which is not a member of the Company’s consolidated group. Under certain circumstances, AHID has the right to put, and WBAD Holdings Limited has the right to call, the 320 common shares of WBAD currently owned by AHID for a purchase price of $100,000. Immediately prior to the completion of the Second Step Transaction, the Company held a 45% equity interest in Alliance Boots and recorded its proportionate share of equity income in Alliance Boots in the Company’s consolidated financial statements on a three-month reporting lag. Following the Second Step Transaction, the Company eliminated the three-month reporting lag and applied this change retrospectively as a change in accounting principle in accordance with Accounting Standards Codification (“ASC”) Topic 250, Accounting Changes and Error Corrections. See Note 3, Change in Accounting Policy for further information.

Note 1. Organization

Walgreens Boots Alliance, Inc. (“Walgreens Boots Alliance”) and subsidiaries are a global pharmacy-led health and wellbeing enterprise. Its operations are conducted through three reportable segments (Retail Pharmacy USA, Retail Pharmacy International and Pharmaceutical Wholesale). See Note 19, Segment Reporting for further information.

On December 31, 2014, Walgreens Boots Alliance became the successor of Walgreen Co. (“Walgreens”) pursuant to a merger designed to effect a reorganization of Walgreens into a holding company structure (the “Reorganization”). Pursuant to the Reorganization, Walgreens became a wholly-owned subsidiary of Walgreens Boots Alliance, a Delaware corporation formed for the purposes of the Reorganization, and each issued and outstanding share of Walgreens common stock converted on a one-to-one basis into Walgreens Boots Alliance common stock. References to the “Company” refer to Walgreens Boots Alliance and its subsidiaries from and after the effective time of the Reorganization on December 31, 2014 and, prior to that time, to the predecessor registrant Walgreens and its subsidiaries, except as otherwise indicated or the context otherwise requires.

On December 31, 2014, following the completion of the Reorganization, Walgreens Boots Alliance completed the acquisition of the remaining 55% of Alliance Boots GmbH (“Alliance Boots”) that Walgreens did not previously own (the “Second Step Transaction”) in exchange for £3.133 billion in cash and approximately 144.3 million shares of Walgreens Boots Alliance common stock. Alliance Boots became a consolidated subsidiary and ceased being accounted for under the equity method immediately upon completion of the Second Step Transaction. For financial reporting and accounting purposes, Walgreens Boots Alliance was the acquirer of Alliance Boots. The consolidated financial statements (and other data) reflect the results of operations and financial position of Walgreens and its subsidiaries for periods prior to December 31, 2014 and of Walgreens Boots Alliance and its subsidiaries for periods from and after the effective time of the Reorganization on December 31, 2014.

As part of the Second Step Transaction, the Company acquired the remaining 27.5% noncontrolling interest in Walgreens Boots Alliance Development GmbH (“WBAD”), a global sourcing enterprise established by the Company and Alliance Boots. The Company already owned a 50% direct ownership in WBAD and indirectly owned an additional ownership interest through its previous 45% investment in Alliance Boots, representing a direct and indirect economic interest of 72.5%. The Company’s acquisition of the remaining 27.5% effective ownership in WBAD as part of the Second Step Transaction was accounted for as an equity transaction as it has historically been consolidated by the Company. On January 1, 2015, WBAD Holdings Limited sold 320 common shares of WBAD, representing approximately 5% of the equity interests in WBAD, to Alliance Healthcare Italia Distribuzione S.p.A. (“AHID”), which is not a member of the Company’s consolidated group. Under certain circumstances, AHID has the right to put, and WBAD Holdings Limited has the right to call, the 320 common shares of WBAD currently owned by AHID for a purchase price of $100,000.

Immediately prior to the completion of the Second Step Transaction, the Company held a 45% equity interest in Alliance Boots and recorded its proportionate share of equity income in Alliance Boots in the Company’s consolidated financial statements on a three-month reporting lag. Following the Second Step Transaction, the Company eliminated the three-month reporting lag and applied this change retrospectively as a change in accounting principle in accordance with Accounting Standards Codification (“ASC”) Topic 250, Accounting Changes and Error Corrections. See Note 3, Change in Accounting Policy for further information.