Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jan. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Property, plant and equipment

The following table summarizes the Company's property and equipment balances and includes the estimated useful lives that are generally used to depreciate the assets on a straight-line basis:

		As of January 31,
(Amounts in millions)	Estimated Useful Lives	2018			2017
Land	N/A	$	25,298		$	24,801
Buildings and improvements	3-40 years	101,155			98,547
Fixtures and equipment	1-30 years	52,695			48,998
Transportation equipment	3-15 years	2,387			2,845
Construction in progress	N/A	3,619			4,301
Property and equipment		$	185,154		$	179,492
Accumulated depreciation		(77,479		)	(71,782		)
Property and equipment, net		$	107,675		$	107,710

Schedule of goodwill

The following table reflects goodwill activity, by reportable segment, for fiscal 2018 and 2017:

(Amounts in millions)	Walmart U.S.		Walmart International			Sam's Club		Total
Balances as of February 1, 2016	$	461	$	15,921		$	313	$	16,695
Changes in currency translation and other	—		(1,433		)	—		(1,433		)
Acquisitions(1)	1,775		—			—		1,775
Balances as of January 31, 2017	2,236		14,488			313		17,037
Changes in currency translation and other	—		996			—		996
Acquisitions	209		—			—		209
Balances as of January 31, 2018	$	2,445	$	15,484		$	313	$	18,242

(1) Goodwill recorded for fiscal 2017 Walmart U.S. acquisitions primarily relates to Jet.com, Inc. ("jet.com").

Deferred revenue, by arrangement, disclosure

The following table summarizes membership fee activity for fiscal 2018, 2017 and 2016:

	Fiscal Years Ended January 31,
(Amounts in millions)	2018			2017			2016
Deferred membership fee revenue, beginning of year	$	743		$	744		$	759
Cash received from members	1,398			1,371			1,333
Membership fee revenue recognized	(1,411		)	(1,372		)	(1,348		)
Deferred membership fee revenue, end of year	$	730		$	743		$	744