Segment reporting (Tables)

3 Months Ended

Nov. 30, 2017

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated

The following table reflects results of operations of the Company’s reportable segments (in millions):

	Retail Pharmacy USA		Retail Pharmacy International		Pharmaceutical Wholesale		Eliminations			Walgreens Boots Alliance, Inc.
Three months ended November 30, 2017
Sales to external customers	$	22,489	$	3,083	$	5,168	$	—		$	30,740
Intersegment sales	—		—		550		(550		)	—
Sales	$	22,489	$	3,083	$	5,718	$	(550	)	$	30,740
Adjusted operating income	$	1,377	$	210	$	224	$	(2	)	$	1,809
Three months ended November 30, 2016
Sales to external customers	$	20,659	$	2,962	$	4,880	$	—		$	28,501
Intersegment sales	—		—		537		(537		)	—
Sales	$	20,659	$	2,962	$	5,417	$	(537	)	$	28,501
Adjusted operating income	$	1,289	$	213	$	224	$	—		$	1,726

Reconciliation of Operating Income (Loss) from Segments to Consolidated

The following table reconciles adjusted operating income to operating income (in millions):

	Retail Pharmacy USA		Retail Pharmacy International		Pharmaceutical Wholesale		Eliminations			Walgreens Boots Alliance, Inc.
Three months ended November 30, 2017
Adjusted operating income	$	1,377	$	210	$	224	$	(2	)	$	1,809
Adjustments to equity earnings in AmerisourceBergen										(189		)
Acquisition-related amortization										(85		)
Hurricane-related costs										(83		)
LIFO provision										(54		)
Acquisition-related costs										(51		)
Legal settlement										(25		)
Operating income										$	1,322
Three months ended November 30, 2016
Adjusted operating income	$	1,289	$	213	$	224	$	—		$	1,726
Adjustments to equity earnings in AmerisourceBergen										(41		)
Acquisition-related amortization										(82		)
LIFO provision										(58		)
Acquisition-related costs										(17		)
Cost transformation										(81		)
Operating income										1,447