Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other Comprehensive Income (Loss), Net of Tax		$ (164.1)	$ 45.5	$ (350.6)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive, beginning balance		(215.1)	(260.6)	178.2
Other comprehensive (loss)/income before reclassification adjustments		(273.1)	63.9	(431.2)
Tax effect		(98.0)	(29.3)	71.3
Reclassification adjustments to net earnings		18.4	17.0	14.2
Tax effect		(7.4)	(6.1)	(4.9)
Reclassification adjustments to retained earnings				(88.2)
Accumulated Other Comprehensive, ending balance		(379.2)	(215.1)	(260.6)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive, beginning balance		(253.8)	(228.3)	99.5
Other comprehensive (loss)/income before reclassification adjustments		23.0	(25.5)	(240.8)
Tax effect		0.0	0.0	0.0
Reclassification adjustments to net earnings		0.0	0.0	1.2	[1]
Tax effect		0.0	0.0	0.0
Reclassification adjustments to retained earnings	[2]			(88.2)
Accumulated Other Comprehensive, ending balance		(230.8)	(253.8)	(228.3)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive, beginning balance		333.8	143.9	211.6
Other comprehensive (loss)/income before reclassification adjustments		(405.7)	288.8	(103.0)
Tax effect		(141.6)	(102.2)	38.6
Reclassification adjustments to net earnings	[3]	(2.2)	5.0	(4.9)
Tax effect		0.8	(1.7)	1.6
Reclassification adjustments to retained earnings				0.0
Accumulated Other Comprehensive, ending balance		68.3	333.8	143.9
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive, beginning balance		(295.1)	(176.2)	(132.9)
Other comprehensive (loss)/income before reclassification adjustments		109.6	(199.4)	(87.4)
Tax effect		43.6	72.9	32.7
Reclassification adjustments to net earnings	[4]	20.6	12.0	17.9
Tax effect		(8.2)	(4.4)	(6.5)
Reclassification adjustments to retained earnings				0.0
Accumulated Other Comprehensive, ending balance		$ (216.7)	$ (295.1)	$ (176.2)

[1] Reclassification adjustments out of AOCI are included within net earnings from discontinued operations on the Statements of Consolidated Earnings.

[2] Reclassification adjustment out of AOCI is related to the CDK spin-off and included in retained earnings on the Consolidated Balance Sheets.

[3] Reclassification adjustments out of AOCI are included within Other income, net, on the Statements of Consolidated Earnings.

[4] Reclassification adjustments out of AOCI are included in net pension expense (see Note 11).