CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Stock and Additional Paid in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss	Total Oracle Corporation Stockholders' Equity	Noncontrolling Interests
Balances at May. 31, 2017	$ 55,130	$ 27,065	$ 28,535	$ (860)	$ 54,740	$ 390
Beginning common stock shares outstanding at May. 31, 2017	4,137.0
Common stock issued under stock-based compensation plans	$ 2,277	2,277	0	0	2,277	0
Common stock issued under stock-based compensation plans, Shares	105.0
Common stock issued under stock purchase plans	$ 125	125	0	0	125	0
Common stock issued under stock purchase plans, Shares	3.0
Assumption of stock-based compensation plan awards in connection with acquisitions	$ 3	3	0	0	3	0
Stock-based compensation	1,607	1,607	0	0	1,607	0
Repurchase of common stock	$ (11,503)	(1,632)	(9,871)	0	(11,503)	0
Repurchase of common stock, Shares	(238.0)
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards	$ (506)	(506)	0	0	(506)	0
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards, Shares	(10.0)
Cash dividends declared	$ (3,140)	0	(3,140)	0	(3,140)	0
Other, net	(13)	11	0	0	11	(24)
Other comprehensive income (loss), net	(829)	0	0	(829)	(829)	0
Net income	3,722	0	3,587	0	3,587	135
Balances at May. 31, 2018	$ 46,873	28,950	19,111	(1,689)	46,372	501
Ending common stock shares outstanding at May. 31, 2018	3,997.0
Cumulative-effect of accounting change	$ (110)	0	(110)	0	(110)	0
Common stock issued under stock-based compensation plans	$ 2,033	2,033	0	0	2,033	0
Common stock issued under stock-based compensation plans, Shares	103.0
Common stock issued under stock purchase plans	$ 122	122	0	0	122	0
Common stock issued under stock purchase plans, Shares	2.0
Assumption of stock-based compensation plan awards in connection with acquisitions	$ 8	8	0	0	8	0
Stock-based compensation	1,653	1,653	0	0	1,653	0
Repurchase of common stock	$ (36,000)	(5,354)	(30,646)	0	(36,000)	0
Repurchase of common stock, Shares	(733.8)
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards	$ (503)	(503)	0	0	(503)	0
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards, Shares	(9.0)
Cash dividends declared	$ (2,932)	0	(2,932)	0	(2,932)	0
Other, net	(71)	0	(2)	0	(2)	(69)
Other comprehensive income (loss), net	55	0	0	61	61	(6)
Net income	11,235	0	11,083	0	11,083	152
Balances at May. 31, 2019	$ 22,363	26,909	(3,496)	(1,628)	21,785	578
Ending common stock shares outstanding at May. 31, 2019	3,359.0
Common stock issued under stock-based compensation plans	$ 1,470	1,470	0	0	1,470	0
Common stock issued under stock-based compensation plans, Shares	78.0
Common stock issued under stock purchase plans	$ 118	118	0	0	118	0
Common stock issued under stock purchase plans, Shares	2.0
Assumption of stock-based compensation plan awards in connection with acquisitions	$ 0
Stock-based compensation	1,590	1,590	0	0	1,590	0
Repurchase of common stock	$ (19,200)	(2,932)	(16,268)	0	(19,200)	0
Repurchase of common stock, Shares	(361.0)
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards	$ (665)	(665)	0	0	(665)	0
Shares repurchased for tax withholdings upon vesting of restricted stock-based awards, Shares	(11.0)
Cash dividends declared	$ (3,070)	0	(3,070)	0	(3,070)	0
Other, net	(95)	(4)	3	0	(1)	(94)
Other comprehensive income (loss), net	(93)	0	0	(88)	(88)	(5)
Net income	10,299	0	10,135	0	10,135	164
Balances at May. 31, 2020	$ 12,717	$ 26,486	$ (12,696)	$ (1,716)	$ 12,074	$ 643
Ending common stock shares outstanding at May. 31, 2020	3,067.0