Statements Of Consolidated Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Cash Flows from Operating Activities:
NET EARNINGS	$ 2,466.5	$ 2,292.8	$ 1,884.9
Adjustments to reconcile net earnings to cash flows provided by operating activities:
Depreciation and amortization	480.0	409.0	377.6
Capitalized Contract Cost, Amortization	915.0	874.0	837.4
Deferred income taxes	26.0	9.3	(152.0)
Stock-based compensation expense	130.8	167.3	175.4
Net pension (income)/expense	(11.6)	55.4	330.4
Net amortization of premiums and accretion of discounts on available-for-sale securities	50.2	50.1	71.5
Asset Impairment Charges	29.9	12.1	0.0
Gain on sale of assets	(6.0)	(19.8)	(0.7)
Other	65.4	43.9	32.2
Changes in operating assets and liabilities, net of effects from acquisitions and divestitures of businesses:
Increase in accounts receivable	(113.8)	(473.9)	(291.8)
Increase in other assets	(910.4)	(987.2)	(858.3)
Decrease in accounts payable	(18.3)	(10.7)	(1.9)
(Decrease)/Increase in accrued expenses and other liabilities	(77.5)	266.0	110.5
Net cash flows provided by operating activities	3,026.2	2,688.3	2,515.2
Cash Flows from Investing Activities:
Purchases of corporate and client funds marketable securities	(3,905.1)	(4,422.6)	(4,876.8)
Proceeds from the sales and maturities of corporate and client funds marketable securities	7,648.4	2,909.0	3,455.0
Capital expenditures	(172.7)	(162.0)	(206.1)
Additions to intangibles	(443.7)	(404.5)	(264.7)
Acquisitions of businesses, net of cash acquired	0.0	(125.5)	(612.4)
Proceeds from the sale of property, plant, and equipment and other assets	29.4	7.9	0.4
Net cash flows provided by/(used in) investing activities	3,156.3	(2,197.7)	(2,504.6)
Cash Flows from Financing Activities:
Net (decrease)/increase in client funds obligations	(3,213.2)	1,696.0	340.4
Payments of debt	(2.2)	(2.1)	(7.3)
Repurchases of common stock	(1,006.3)	(937.7)	(989.3)
Net proceeds from stock purchase plan and stock-based compensation plans	50.0	72.9	69.3
Dividends paid	(1,470.5)	(1,293.0)	(1,063.7)
Other	0.0	(5.8)	(5.3)
Net cash flows used in financing activities	(5,890.6)	(207.7)	(1,655.9)
Effect of exchange rate changes on cash, cash equivalents, restricted cash, and restricted cash equivalents	(34.5)	(28.8)	5.8
Net change in cash, cash equivalents, restricted cash, and restricted cash equivalents	257.4	254.1	(1,639.5)
Cash, cash equivalents, restricted cash, and restricted cash equivalents, beginning of year	6,796.2	6,542.1	8,181.6
Cash, cash equivalents, restricted cash, and restricted cash equivalents, end of year	7,053.6	6,796.2	6,542.1
Total cash, cash equivalents, restricted cash, and restricted cash equivalents	6,796.2	6,796.2	6,542.1
Net proceeds from reverse repurchase agreements	(248.4)	262.0	0.0
Cash paid for income taxes, net of income tax refunds	677.1	633.8	529.7
Interest Paid, Excluding Capitalized Interest, Operating Activities	$ 104.8	$ 127.5	$ 100.5