Statements of Consolidated Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
NET EARNINGS	$ 1,620.8	$ 1,733.4	$ 1,492.5
Other comprensive income:
Currency translation adjustments	2.8	23.0	(25.5)
Unrealized net (losses)/gains on available-for-sale securities	(460.7)	(405.7)	288.8
Tax effect	123.4	141.6	(102.2)
Reclassification of net losses/(gains) on available-for-sale securities to net earnings	2.7	(2.2)	5.0
Tax effect	(0.6)	0.8	(1.7)
Pension net gains/(losses) arising during the year	87.0	109.6	(199.4)
Tax effect	(18.7)	(43.6)	72.9
Reclassification of pension liability adjustment to net earnings	9.3	20.6	12.0
Tax effect	(4.5)	(8.2)	(4.4)
Other comprehensive (loss)/income, net of tax	(259.3)	(164.1)	45.5
Comprehensive income	$ 1,361.5	$ 1,569.3	$ 1,538.0