Consolidated Statements of Equity (unaudited) (USD $) In Millions, unless otherwise specified	Total	Common Stock and Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Balance at Dec. 31, 2011	$ 167.5	$ 473.6	$ 301.1	$ (36.8)	$ (578.5)	$ 8.1
Increase (Decrease) in Stockholders' Equity
Net income	207.0	0	205.7	0	0	1.3
Stock plan activity	11.2	11.2	0	0	0	0
Stock Issued During Period, Value, Stock Options Exercised	25.7	9.5	0	16.2	0	0
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	23.0	23.0	0	0	0	0
Other comprehensive income	(32.2)	0	0	0	(32.2)	0
Balance at Sep. 30, 2012	402.2	517.3	506.8	(20.6)	(610.7)	9.4
Balance at Dec. 31, 2012	318.3	537.3	395.2	(16.8)	(607.3)	9.9
Increase (Decrease) in Stockholders' Equity
Net income	206.2	0	205.1	0	0	1.1
Stock plan activity	10.7	10.7	0	0	0	0
Stock Issued During Period, Value, Stock Options Exercised	30.9	15.8	0	15.1	0	0
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	(33.7)	(33.7)	0	0	0	0
Shares issued	0.8	0.8	0	0	0	0
Other comprehensive income	78.7	0	0	0	79.6	(0.9)
Balance at Sep. 30, 2013	$ 611.9	$ 530.9	$ 600.3	$ (1.7)	$ (527.7)	$ 10.1