INCOME TAXES (Tables)

12 Months Ended

May. 31, 2015

Income Taxes [Abstract]

Geographical Breakdown of Income Before Provision for Income Taxes

	Year Ended May 31,
(in millions)	2015		2014		2013
Domestic	$	5,136	$	5,397	$	6,614
Foreign		7,698		8,307		7,284
Income before provision for income taxes	$	12,834	$	13,704	$	13,898

Components of Provision for Income Taxes

	Year Ended May 31,
(Dollars in millions)	2015		2014		2013
Current provision:
Federal	$	2,153	$	1,613	$	1,720
State		310		337		254
Foreign		981		1,047		1,116
Total current provision	$	3,444	$	2,997	$	3,090
Deferred benefit:
Federal	$	(408)	$	(68)	$	(179)
State		(46)		(100)		82
Foreign		(94)		(80)		(20)
Total deferred benefit	$	(548)	$	(248)	$	(117)
Total provision for income taxes	$	2,896	$	2,749	$	2,973
Effective income tax rate		22.6%		20.1%		21.4%

Reconciliation of Differences Between Federal Statutory Tax Rate and Effective Tax Rate

	Year Ended May 31,
(in millions)	2015		2014		2013
Tax provision at statutory rate	$	4,492	$	4,796	$	4,865
Foreign earnings at other than United States rates		(1,627)		(1,790)		(1,637)
State tax expense, net of federal benefit		176		154		299
Settlements and releases from judicial decisions and statute expirations, net		(85)		(168)		(144)
Domestic production activity deduction		(188)		(174)		(155)
Other, net		128		69		255
Total provision for income taxes	$	2,896	$	2,749	$	2,973

Components of Deferred Tax Liabilities and Assets

	May 31,
(in millions)	2015		2014
Deferred tax liabilities:
Unrealized gain on stock	$	(130)	$	(130)
Acquired intangible assets		(1,879)		(1,804)
Unremitted earnings		(646)		(510)
Other		(11)		—
Total deferred tax liabilities	$	(2,666)	$	(2,444)
Deferred tax assets:
Accruals and allowances	$	421	$	440
Employee compensation and benefits		1,123		1,062
Differences in timing of revenue recognition		335		210
Depreciation and amortization		155		243
Tax credit and net operating loss carryforwards		2,649		2,810
Other		—		96
Total deferred tax assets	$	4,683	$	4,861
Valuation allowance	$	(1,024)	$	(1,053)
Net deferred tax assets	$	993	$	1,364
Recorded as:
Current deferred tax assets	$	663	$	914
Non-current deferred tax assets		795		837
Current deferred tax liabilities (in other current liabilities)		(85)		(129)
Non-current deferred tax liabilities (in other non-current liabilities)		(380)		(258)
Net deferred tax assets	$	993	$	1,364

Gross Unrecognized Tax Benefits, Including Acquisitions

	Year Ended May 31,
(in millions)	2015		2014		2013
Gross unrecognized tax benefits as of June 1	$	3,838	$	3,601	$	3,276
Increases related to tax positions from prior fiscal years		119		94		279
Decreases related to tax positions from prior fiscal years		(17)		(116)		(125)
Increases related to tax positions taken during current fiscal year		316		307		312
Settlements with tax authorities		(30)		(2)		(71)
Lapses of statutes of limitation		(54)		(53)		(71)
CTA and other, net		(134)		7		1
Total gross unrecognized tax benefits as of May 31	$	4,038	$	3,838	$	3,601