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Sales
 3 Months Ended
Nov. 30, 2022
Revenue from Contract with Customer [Abstract]  
Sales Sales
The following table summarizes the Company’s sales by segment and by major source (in millions):
Three months ended November 30,
20222021
U.S. Retail Pharmacy
Pharmacy$20,218 $21,105 
Retail6,986 6,927 
Total27,204 28,032 
International
Pharmacy867 1,017 
Retail1,650 1,796 
Wholesale2,672 3,005 
Total5,189 5,818 
U.S. Healthcare989 51 
Walgreens Boots Alliance, Inc.$33,382 $33,901 

See Note 18. Supplemental information for further information on receivables from contracts with customers.