Financing (Components Of Debt) (Details) In Millions, unless otherwise specified	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2014 2014 Notes Senior Notes USD ($)	Jun. 30, 2014 2014 Notes Senior Notes	Dec. 31, 2013 2014 Notes Senior Notes USD ($)	Dec. 31, 2014 2016 Notes Senior Notes USD ($)	Dec. 31, 2013 2016 Notes Senior Notes USD ($)	Dec. 31, 2014 2018 Notes Senior Notes USD ($)	Dec. 31, 2013 2018 Notes Senior Notes USD ($)	Dec. 31, 2014 2019 Notes Senior Notes USD ($)	Dec. 31, 2013 2019 Notes Senior Notes USD ($)	Dec. 31, 2014 2021 Notes Senior Notes USD ($)	Dec. 31, 2013 2021 Notes Senior Notes USD ($)	Dec. 31, 2014 2016 Bonds Bonds USD ($)	Dec. 31, 2014 2016 Bonds Bonds CHF	Dec. 31, 2013 2016 Bonds Bonds USD ($)	Dec. 31, 2014 2021 LYONS Convertible Debt USD ($)	Dec. 31, 2013 2021 LYONS Convertible Debt USD ($)	Dec. 31, 2001 2021 LYONS Convertible Debt	Dec. 31, 2014 U.S. Dollar-Denominated Commercial Paper USD ($)	Dec. 31, 2013 U.S. Dollar-Denominated Commercial Paper USD ($)
Debt, Long-term and Short-term, Combined Amount [Abstract]
Commercial paper	$ 764.6	$ 450.0																		$ 450.0	$ 450.0
Senior Notes			0		400.0	500.0	500.0	500.0	500.0	750.0	750.0	600.0	600.0
Bonds	118.3	144.9												129.9	120.0	0
Zero-coupon LYONs due 2021																	110.6	154.1
Other	118.3	144.9												129.9	120.0	0
Subtotal	3,473.4	3,499.0
Less currently payable	71.9	62.3
Long-term debt	$ 3,401.5	$ 3,436.7
Interest rate of debt instrument				1.30%		2.30%		5.625%		5.40%		3.90%		4.00%	4.00%		0.00%		2.375%