Summary of Significant Accounting Policies (Detail) - USD ($) $ in Millions	Nov. 30, 2018	Jun. 01, 2018	May 31, 2018	Nov. 30, 2017	Aug. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capital in excess of stated value	$ 6,707		$ 6,384
Retained earnings	1,810		3,517
Accounts receivable, net	4,346		3,498
Prepaid expenses and other current assets	1,791		1,130
Total current assets	15,566		15,134
TOTAL ASSETS	22,677		22,536
Accrued liabilities	4,478		3,269
Total current liabilities	7,278		6,040
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	22,677		22,536
Deferred income taxes and other assets	2,085		2,509
Deferred income taxes and other liabilities	3,204		$ 3,216
Adoption of ASC Topic 606 (Note 1)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Retained earnings		$ 23
Adoption of ASU 2016-16 (Note 1)
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 | Adoption of ASC Topic 606 (Note 1)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable, net	695
Prepaid expenses and other current assets	384
Total current assets	1,079
TOTAL ASSETS	1,079
Accrued liabilities	1,079
Total current liabilities	1,079
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	1,079
Balances Without Adoption of Topic 606
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accounts receivable, net	3,651
Prepaid expenses and other current assets	1,407
Total current assets	14,487
TOTAL ASSETS	21,598
Accrued liabilities	3,399
Total current liabilities	6,199
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 21,598
Restatement Adjustment | Repurchases Of Class B Common Stock
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Capital in excess of stated value				$ (100)	$ (3,000)
Retained earnings				$ 100	$ 3,000