XML 76 R49.htm IDEA: XBRL DOCUMENT v3.23.3
Summary of major accounting policies - narrative (Details)
shares in Millions, $ in Millions
12 Months Ended
Jun. 01, 2021
USD ($)
Aug. 31, 2023
USD ($)
segment
shares
Aug. 31, 2022
USD ($)
shares
Aug. 31, 2021
USD ($)
shares
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Number of reportable segments | segment   3    
Minimum number of days for settlement of credit and debit charges   1 day    
Maximum number of days for settlement of credit and debit charges   7 days    
Credit and debit card receivables   $ 122.0 $ 127.0  
Other cash flows from operating activities   (157.0) 326.0 $ (218.0)
Gain on reclassification of equity method investment to equity security   83.0    
Impairment of equity method investments and investments in deb and equity securities     233.0  
Allowance for doubtful accounts   110.0 66.0  
Inventories   8,257.0 8,353.0  
Depreciation and amortization expense   $ 1,400.0 1,400.0 1,400.0
Term of renewal contract   5 years    
Advertising expense   $ 775.0 862.0 $ 772.0
Expected performance goal achievement rate   100.00%    
Trade Accounts Receivable        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Accounts receivable   $ 4,300.0 $ 4,000.0  
Other Accounts Receivable        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Accounts receivable   $ 1,100.0    
Potentially Dilutive Securities        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Outstanding options to purchase common shares excluded from earnings per share calculations (in shares) | shares   3.0    
Share-Based Payment Arrangement        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Outstanding options to purchase common shares excluded from earnings per share calculations (in shares) | shares   17.8 17.1 17.2
VillageMD        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Aggregate liquidation preference   $ 4,900.0    
VillageMD        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Non-controlling interests, preferred units (in shares) | shares   16.0 3.9  
Non-controlling interests, common units (in shares) | shares   6.5 6.1  
Dividend rate   5.50%    
Discontinued operations, disposed of by sale | Alliance Healthcare        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Net gain on disposal $ 322.0     $ 322.0
Minimum        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Term of lease   10 years    
Highly effective hedging percentage   80.00%    
Maximum        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Term of lease   25 years    
Highly effective hedging percentage   125.00%    
Capitalized system development costs and software        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Amortization of capitalized system development costs and software   $ 371.0 $ 307.0 284.0
Unamortized capitalized software costs   1,500.0 1,100.0  
Selling, general and administrative expense        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Impairment of definite-lived assets   863.0 380.0 $ 182.0
U.S. Retail Pharmacy | Reportable Segments        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Inventories   6,200.0 6,500.0  
LIFO reserve   3,600.0 3,400.0  
International | Reportable Segments        
Accounts, Notes, Loans and Financing Receivable [Line Items]        
Inventories   $ 2,000.0 $ 1,800.0