Sales

3 Months Ended

Nov. 30, 2019

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,
	2019		2018
Retail Pharmacy USA
Pharmacy	$	19,705	$	19,147
Retail	6,428		6,574
Total	26,133		25,721
Retail Pharmacy International
Pharmacy	1,001		1,039
Retail	1,744		1,862
Total	2,745		2,901
Pharmaceutical Wholesale	6,007		5,708
Eliminations1	(545)		(537)
Walgreens Boots Alliance, Inc.	$	34,339	$	33,793

¹ Eliminations 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 Balance Rewards® 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.