Statements Of Consolidated Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Cash Flows from Operating Activities:
NET EARNINGS	$ 1,733.4	$ 1,492.5	$ 1,452.5
Adjustments to reconcile net earnings to cash flows provided by operating activities:
Depreciation and amortization	316.1	288.6	277.9
Deferred Income Tax Expense (Benefit), Net of Disposals	10.0	0.7	(15.3)
Stock-based compensation expense	138.9	137.6	143.2
Net pension expense	24.2	17.7	17.6
Net amortization of premiums and accretion of discounts on available-for-sale securities	85.9	94.1	100.3
Gain on sale of building	0.0	(13.9)	0.0
Gain on sale of divested businesses, net of tax	(121.4)	(21.8)	(78.4)
Other	37.1	30.7	1.8
Changes in operating assets and liabilities, net of effects from acquisitions and divestitures of businesses:
Decrease/(increase) in accounts receivable	23.4	(224.6)	(175.1)
Increase in other assets	(269.1)	(108.9)	(109.1)
(Decrease)/Increase in accounts payable	(11.6)	(15.9)	13.1
Increase in accrued expenses and other liabilities	159.0	220.5	122.1
Proceeds from the sale of notes receivable	0.0	0.0	226.7
Operating activities of discontinued operations	0.0	0.0	(3.3)
Net cash flows provided by operating activities	2,125.9	1,897.3	1,974.0
Cash Flows from Investing Activities:
Purchases of corporate and client funds marketable securities	(4,382.8)	(5,876.3)	(5,047.6)
Proceeds from the sales and maturities of corporate and client funds marketable securities	3,593.6	5,215.4	3,841.0
Net decrease/(increase) in restricted cash and cash equivalents held to satisfy client funds obligations	6,843.6	(8,218.2)	(2,960.6)
Capital expenditures	(240.2)	(168.5)	(158.8)
Additions to intangibles	(230.4)	(217.5)	(176.7)
Acquisitions of businesses, net of cash acquired	(87.4)	0.0	(8.1)
Proceeds from the sale of property, plant, and equipment and other assets	0.0	15.7	23.6
Dividend received from CDK Global, Inc.	0.0	0.0	825.0
Cash retained by CDK Global, Inc.	0.0	0.0	(180.0)
Proceeds from the sale of divested businesses	234.0	162.2	98.6
Investing activities of discontinued operations	0.0	0.0	(16.7)
Net cash flows provided by/(used in) investing activities	5,730.4	(9,087.2)	(3,760.3)
Cash Flows from Financing Activities:
Net (decrease)/increase in client funds obligations	(6,120.6)	8,803.3	6,074.4
Proceeds from debt issuance	0.0	1,998.3	0.0
Payments of debt	(2.0)	(1.5)	(2.3)
Repurchases of common stock	(1,259.6)	(1,155.7)	(1,557.2)
Proceeds from stock purchase plan and exercises of stock options	95.7	75.3	109.1
Dividends paid	(995.2)	(943.6)	(927.6)
Net repayments from issuance of commercial paper	0.0	0.0	(2,173.0)
Other	0.0	(23.4)	23.4
Financing activities of discontinued operations	0.0	0.0	1.5
Net cash flows (used in)/provided by financing activities	(8,281.7)	8,752.7	1,548.3
Effect of exchange rate changes on cash and cash equivalents	14.7	(11.0)	(106.3)
Net change in cash and cash equivalents	(410.7)	1,551.8	(344.3)
Cash and cash equivalents, beginning of period	3,191.1	1,639.3	1,983.6
Cash and cash equivalents, end of period	2,780.4	3,191.1	1,639.3
Cash paid for interest	78.1	37.5	5.7
Cash paid for income taxes, net of income tax refunds	$ 817.1	$ 651.6	$ 773.3