CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Reinvested Earnings	Common Stock in Treasury	Accumulated Other Comprehensive (Loss) Income	Noncontrolling Interest
Balances at Jun. 30, 2012	$ 1,113.1	$ 274.0	$ 252.7	$ 1,109.6	$ (120.0)	$ (412.5)	$ 9.3
Balances (in shares) at Jun. 30, 2012	52,412,967	54,809,735			2,396,768
Increase (Decrease) in Stockholders' Equity
Net income	$ 146.5			146.1			0.4
Pension and postretirement benefits gain, net of tax	80.5					80.5
Net gain (loss) on derivative instruments, net of tax	(8.7)					(8.7)
Purchase of subsidiary shares from noncontrolling interest	(8.4)		1.6				(10.0)
Unrealized gain on marketable securities, net of tax	0.3					0.3
Foreign currency translation	5.0					4.7	0.3
Cash Dividends:
Common @ $0.72 per share	(38.3)			(38.3)
Share-based compensation plans	$ 7.0		(5.5)		$ 12.5
Share-based compensation plans (in shares)	244,493				244,493
Stock options exercised	$ 2.3	$ 0.6	1.7
Stock options exercised (in shares)	115,600	115,600
Tax windfall (shortfall) on share-based compensation	$ 3.9		3.9
Other	(0.1)			(0.1)
Balances at Jun. 30, 2013	$ 1,303.1	$ 274.6	254.4	1,217.3	$ (107.5)	(335.7)	0.0
Balances (in shares) at Jun. 30, 2013	52,773,060	54,925,335			2,152,275
Increase (Decrease) in Stockholders' Equity
Net income	$ 132.8			132.8
Pension and postretirement benefits gain, net of tax	36.9					36.9
Net gain (loss) on derivative instruments, net of tax	49.1					49.1
Unrealized gain on marketable securities, net of tax	0.0
Foreign currency translation	4.5					4.5
Cash Dividends:
Common @ $0.72 per share	(38.5)			(38.5)
Share-based compensation plans	$ 7.0		0.9		$ 6.1
Share-based compensation plans (in shares)	127,544				127,544
Stock options exercised	$ 7.1	$ 1.2	5.9
Stock options exercised (in shares)	236,540	236,540
Tax windfall (shortfall) on share-based compensation	$ 2.3		2.3
Balances at Jun. 30, 2014	$ 1,504.3	$ 275.8	263.5	1,311.6	$ (101.4)	(245.2)	0.0
Balances (in shares) at Jun. 30, 2014	53,137,144	55,161,875			2,024,731
Increase (Decrease) in Stockholders' Equity
Net income	$ 58.7			58.7
Pension and postretirement benefits gain, net of tax	(20.1)					(20.1)
Net gain (loss) on derivative instruments, net of tax	(36.1)					(36.1)
Unrealized gain on marketable securities, net of tax	0.1					0.1
Foreign currency translation	(26.9)					(26.9)
Cash Dividends:
Common @ $0.72 per share	(37.9)			(37.9)
Purchases of treasury stock	$ (124.5)				$ (124.5)
Purchase of treasury stock (in shares)	(2,995,272)				(2,995,272)
Share-based compensation plans	$ 6.9		2.1		$ 4.8
Share-based compensation plans (in shares)	103,305				103,305
Stock options exercised	$ 2.3	$ 0.4	1.9
Stock options exercised (in shares)	73,067	73,067
Tax windfall (shortfall) on share-based compensation	$ (0.9)		(0.9)
Balances at Jun. 30, 2015	$ 1,325.9	$ 276.2	$ 266.6	$ 1,332.4	$ (221.1)	$ (328.2)	$ 0.0
Balances (in shares) at Jun. 30, 2015	50,318,244	55,234,942			4,916,698