Summary of Significant Accounting Policies (Detail) - USD ($) $ in Millions	Aug. 31, 2018	Jun. 01, 2018	May 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings	$ 2,494		$ 3,517
Accounts receivable, net	4,330		3,498
Prepaid expenses and other current assets	1,675		1,130
Total current assets	15,501		15,134
TOTAL ASSETS	22,483		22,536
Accrued liabilities	4,174		3,269
Total current liabilities	6,708		6,040
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	22,483		22,536
Deferred income taxes and other assets	2,057		2,509
Deferred income taxes and other liabilities	3,316		$ 3,216
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings		$ 23
Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings		(507)
Prepaid expenses and other current assets		(45)
Deferred income taxes and other assets		(422)
Deferred income taxes and other liabilities		$ 40
Effect of Adoption | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable, net	662
Prepaid expenses and other current assets	367
Total current assets	1,029
TOTAL ASSETS	1,029
Accrued liabilities	1,029
Total current liabilities	1,029
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	1,029
Balances Without Adoption of Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable, net	3,668
Prepaid expenses and other current assets	1,308
Total current assets	14,472
TOTAL ASSETS	21,454
Accrued liabilities	3,145
Total current liabilities	5,679
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 21,454