Schedule II - Valuation and Qualifying Accounts (Detail) - Allowance for Sales Returns - USD ($) $ in Millions	12 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
BALANCE AT BEGINNING OF PERIOD		$ 843	$ 734
CHARGED TO COSTS AND EXPENSES			2,209
CHARGED TO OTHER ACCOUNTS			(30)
WRITE-OFFS, NET			(2,070)
BALANCE AT END OF PERIOD			843
Revision of Prior Period, Adjustment
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
CHARGED TO COSTS AND EXPENSES		286	250
Accounting Standards Update 2014-09
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
BALANCE AT BEGINNING OF PERIOD	$ 682	843
CHARGED TO COSTS AND EXPENSES	2,571	2,227
CHARGED TO OTHER ACCOUNTS	41	(31)
WRITE-OFFS, NET	(2,699)	(2,357)
BALANCE AT END OF PERIOD	$ 595	$ 682	$ 843