Cover Page - USD ($) $ in Billions | 12 Months Ended | | |
Aug. 31, 2023 | Sep. 29, 2023 | Feb. 28, 2023 |
Document Information [Line Items] | | | |
Document Type | 10-K/A | | |
Document Annual Report | true | | |
Document Period End Date | Aug. 31, 2023 | | |
Current Fiscal Year End Date | --08-31 | | |
Document Transition Report | false | | |
Entity File Number | 001-36759 | | |
Entity Registrant Name | WALGREENS BOOTS ALLIANCE, INC. | | |
Entity Incorporation, State or Country Code | DE | | |
Entity Tax Identification Number | 47-1758322 | | |
Entity Address, Address Line One | 108 Wilmot Road | | |
Entity Address, City or Town | Deerfield | | |
Entity Address, State or Province | IL | | |
Entity Address, Postal Zip Code | 60015 | | |
City Area Code | 847 | | |
Local Phone Number | 315-3700 | | |
Entity Well-known Seasoned Issuer | Yes | | |
Entity Voluntary Filers | No | | |
Entity Current Reporting Status | Yes | | |
Entity Interactive Data Current | Yes | | |
Entity Filer Category | Large Accelerated Filer | | |
Entity Small Business | false | | |
Entity Emerging Growth Company | false | | |
ICFR Auditor Attestation Flag | true | | |
Entity Shell Company | false | | |
Entity Public Float | | | $ 25.4 |
Entity Common Stock, Shares Outstanding (in shares) | | 863,914,593 | |
Documents Incorporated by Reference | Portions of the definitive proxy statement for our Annual Meeting of Stockholders, to be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year ended August 31, 2023 are incorporated by reference into Part III of this Form 10-K as indicated herein. | | |
Entity Central Index Key | 0001618921 | | |
Document Fiscal Year Focus | 2023 | | |
Document Fiscal Period Focus | FY | | |
Amendment Flag | true | | |
Amendment Description | WBA is filing this Amendment to amend Item 15 to include the consolidated financial statements of its equity investee, Cencora, Inc. (“Cencora”) as of September 30, 2023 | | |
Common Stock, $0.01 par value | | | |
Document Information [Line Items] | | | |
Title of 12(b) Security | Common Stock, $0.01 par value | | |
Trading Symbol | WBA | | |
Security Exchange Name | NASDAQ | | |
3.600% Walgreens Boots Alliance, Inc. notes due 2025 | | | |
Document Information [Line Items] | | | |
Title of 12(b) Security | 3.600% Walgreens Boots Alliance, Inc. notes due 2025 | | |
Trading Symbol | WBA25 | | |
Security Exchange Name | NASDAQ | | |
2.125% Walgreens Boots Alliance, Inc. notes due 2026 | | | |
Document Information [Line Items] | | | |
Title of 12(b) Security | 2.125% Walgreens Boots Alliance, Inc. notes due 2026 | | |
Trading Symbol | WBA26 | | |
Security Exchange Name | NASDAQ | | |