Statements of Consolidated Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net earnings	$ 602.1	$ 582.4
Other comprehensive income/(loss):
Currency translation adjustments	50.4	(48.9)
Unrealized net gains/(losses) on available-for-sale securities	(24.6)	96.1
Tax effect	5.5	(20.8)
Reclassification of net (gain)/losses on available-for-sale securities to net earnings	(0.3)	(2.3)
Tax effect	0.1	0.5
Unrealized loss on cash flow hedging activities	(3.3)	0.0
Tax effect	0.8	0.0
Amortization of unrealized loss on cash flow hedging activities	0.6	0.0
Tax effect	0.0	0.0
Reclassification of pension liability adjustment to net earnings	2.5	(1.7)
Tax effect	(1.0)	0.5
Other comprehensive income, net of tax	30.7	23.4
Comprehensive income	$ 632.8	$ 605.8