Statements Of Consolidated Cash Flows - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows from Operating Activities:
NET EARNINGS	$ 401.5	$ 368.7
Adjustments to reconcile net earnings to cash flows provided by operating activities:
Depreciation and amortization	87.2	77.6
Deferred income taxes	46.4	31.9
Stock-based compensation expense	39.0	31.1
Net pension expense	2.7	6.1
Net amortization of premiums and accretion of discounts on available-for-sale securities	19.4	23.2
Other	9.6	8.2
Changes in operating assets and liabilities, net of effects from acquisitions and divestitures of businesses:
(Increase)/Decrease in accounts receivable	(81.7)	121.0
Increase in other assets	(259.5)	(221.6)
Decrease in accounts payable	(24.5)	(36.3)
Increase/(Decrease) in accrued expenses and other liabilities	4.6	(80.1)
Net cash flows provided by operating activities	244.7	329.8
Cash Flows from Investing Activities:
Purchases of corporate and client funds marketable securities	(1,157.3)	(1,171.1)
Proceeds from the sales and maturities of corporate and client funds marketable securities	1,007.7	900.1
Capital expenditures	(73.3)	(48.7)
Additions to intangibles	(69.7)	(57.2)
Acquisitions of businesses, net of cash acquired	0.0	(20.0)
Net cash flows used in investing activities	(292.6)	(396.9)
Cash Flows from Financing Activities:
Net decrease in client funds obligations	(1,674.3)	(8,928.3)
Payments of debt	(0.9)	(0.5)
Repurchases of common stock	(250.1)	(328.6)
Net proceeds from stock purchase plan and stock-based compensation plans	(15.1)	(14.4)
Dividends paid	(253.7)	(241.8)
Net proceeds from reverse repurchase agreements	129.4	0.0
Net cash flows used in financing activities	(2,064.7)	(9,513.6)
Effect of exchange rate changes on cash, cash equivalents, restricted cash, and restricted cash equivalents	14.2	(16.3)
Net change in cash, cash equivalents, restricted cash, and restricted cash equivalents	(2,098.4)	(9,597.0)
Cash, cash equivalents, restricted cash, and restricted cash equivalents, beginning of period	8,181.6	15,458.6
Cash, cash equivalents, restricted cash, and restricted cash equivalents, end of period	6,083.2	5,861.6
Supplemental disclosures of cash flow information:
Cash paid for interest	41.4	33.4
Cash paid for income taxes, net of income tax refunds	$ 41.9	$ 36.3