Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Deferred Income Tax Liabilities, Net	$ 158.1	$ 168.2
Allowances for accounts receivable	$ 16.9	$ 18.1
Common shares, no par value	$ 0	$ 0
Company common shares shares authorized	200,000,000	200,000,000
Common shares, shares issued	98,375,135	98,375,135
Treasury shares	23,276,868	22,836,180
Preferred Class A [Member]
Preferred stock, no par value (Class I & Class II Preferred stock)	$ 0	$ 0
Preferred stock, shares authorized (Class I & Class II Preferred stock)	10,000,000	10,000,000
Preferred stock, shares issued (Class I & Class II Preferred stock)	0	0
Preferred Class B [Member]
Preferred stock, no par value (Class I & Class II Preferred stock)	$ 0	$ 0
Preferred stock, shares authorized (Class I & Class II Preferred stock)	10,000,000	10,000,000
Preferred stock, shares issued (Class I & Class II Preferred stock)	0	0