Statements Of Consolidated Cash Flows - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash Flows from Operating Activities:
Net earnings	$ 505.4	$ 412.6
Adjustments to reconcile net earnings to cash flows provided by operating activities:
Depreciation and amortization	99.0	87.2
Amortization of deferred contract costs	216.9	204.7
Deferred income taxes	26.4	55.4
Stock-based compensation expense	38.4	39.0
Net pension expense	17.1	2.7
Net amortization of premiums and accretion of discounts on available-for-sale securities	14.3	19.4
Impairment of intangible assets	12.1	0.0
Other	10.1	9.6
Changes in operating assets and liabilities, net of effects from acquisitions:
Increase in accounts receivable	(239.2)	(81.7)
Increase in other assets	(471.2)	(460.7)
Decrease in accounts payable	(2.3)	(24.5)
Decrease in accrued expenses and other liabilities	(77.8)	(19.0)
Net cash flows provided by operating activities	149.2	244.7
Cash Flows from Investing Activities:
Purchases of corporate and client funds marketable securities	(755.8)	(1,157.3)
Proceeds from the sales and maturities of corporate and client funds marketable securities	539.8	1,007.7
Capital expenditures	(43.2)	(73.3)
Additions to intangibles	(73.8)	(69.7)
Acquisitions of businesses, net of cash acquired	(119.7)	0.0
Net cash flows used in investing activities	(452.7)	(292.6)
Cash Flows from Financing Activities:
Net decrease in client funds obligations	(1,711.5)	(1,674.3)
Payments of debt	(0.5)	(0.9)
Repurchases of common stock	(227.1)	(250.1)
Net proceeds from stock purchase plan and stock-based compensation plans	(24.4)	(15.1)
Dividends paid	(302.6)	(253.7)
Net proceeds from reverse repurchase agreements	448.4	129.4
Net cash flows used in financing activities	(1,817.7)	(2,064.7)
Effect of exchange rate changes on cash, cash equivalents, restricted cash, and restricted cash equivalents	(12.6)	14.2
Net change in cash, cash equivalents, restricted cash, and restricted cash equivalents	(2,133.8)	(2,098.4)
Cash, cash equivalents, restricted cash, and restricted cash equivalents, beginning of period	6,542.1	8,181.6
Cash, cash equivalents, restricted cash, and restricted cash equivalents, end of period	4,408.3	6,083.2
Reconciliation of cash, cash equivalents, restricted cash, and restricted cash equivalents to the Consolidated Balance Sheets
Total cash, cash equivalents, restricted cash, and restricted cash equivalents	6,542.1	8,181.6
Supplemental disclosures of cash flow information:
Cash paid for interest	49.4	41.4
Cash paid for income taxes, net of income tax refunds	$ 39.3	$ 41.9