CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Nov. 30, 2025	Nov. 30, 2024
Operating Activities:
Net income	$ 1,780	$ 1,535
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	2,160	2,141
Provision for uncollectible accounts	469	250
Other noncash items including leases and deferred income taxes	1,437	1,589
Stock-based compensation	99	84
Separation and other costs, net of payments	146	0
Business optimization costs, net of payments	(130)	125
Changes in assets and liabilities:
Receivables	(1,315)	(1,079)
Other assets	(253)	(111)
Accounts payable and other liabilities	(725)	(2,087)
Other, net	(1)	58
Cash provided by operating activities	3,667	2,505
Investing Activities:
Capital expenditures	(1,380)	(1,585)
Purchase of investments	(326)	(107)
Proceeds from sale of investments	177	52
Proceeds from asset dispositions and other investing activities, net	49	34
Cash used in investing activities	(1,480)	(1,606)
Financing Activities:
Proceeds from debt issuances	997	0
Principal payments on debt	(647)	(47)
Proceeds from stock issuances	50	440
Dividends paid	(687)	(676)
Purchases of common stock	(796)	(2,020)
Other	(9)	(6)
Cash used in financing activities	(1,092)	(2,309)
Effect of exchange rate changes on cash	(27)	(62)
Net increase (decrease) in cash and cash equivalents	1,068	(1,472)
Cash and cash equivalents at beginning of period	5,502	6,501
Cash and cash equivalents at end of period	$ 6,570	$ 5,029