Sales

3 Months Ended

Nov. 30, 2020

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,
	2020		2019
Retail Pharmacy USA
Pharmacy	$	20,869	$	19,705
Retail	6,294		6,428
Total	27,163		26,133
Retail Pharmacy International
Pharmacy	1,002		1,001
Retail	1,572		1,744
Total	2,574		2,745
Pharmaceutical Wholesale	7,125		6,007
Eliminations1	(555)		(545)
Walgreens Boots Alliance, Inc.	$	36,307	$	34,339

1Eliminations relate to intersegment sales between the Pharmaceutical Wholesale and the Retail Pharmacy International segments.

Contract balances with customers

Contract liabilities primarily represent the Company’s obligation to transfer additional goods or services to a customer for which the Company has received consideration, for example the Company’s myWalgreens and Boots Advantage Card loyalty programs. Under such programs, customers earn reward points on purchases for redemption at a later date. See Note 18, Supplemental information, for further information on receivables from contracts with customers.