Financing (Components Of Debt) (Details) In Millions, unless otherwise specified	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2012 Eurobond Notes USD ($)	Dec. 31, 2012 Eurobond Notes EUR (€)	Dec. 31, 2011 Eurobond Notes USD ($)	Dec. 31, 2011 Eurobond Notes EUR (€)	Dec. 31, 2012 2013 Notes USD ($)	Dec. 31, 2011 2013 Notes USD ($)	Dec. 31, 2012 2014 Notes USD ($)	Dec. 31, 2011 2014 Notes USD ($)	Dec. 31, 2012 2016 Notes USD ($)	Dec. 31, 2011 2016 Notes USD ($)	Dec. 31, 2012 2018 Notes USD ($)	Dec. 31, 2011 2018 Notes USD ($)	Dec. 31, 2012 2019 Notes USD ($)	Dec. 31, 2011 2019 Notes USD ($)	Dec. 31, 2012 2021 Notes USD ($)	Dec. 31, 2011 2021 Notes USD ($)	Dec. 31, 2012 Zero-Coupon LYONs USD ($)	Dec. 31, 2011 Zero-Coupon LYONs USD ($)
Debt Instrument [Line Items]
Commercial paper	$ 1,224.5	$ 977.3
Other Notes Payable			659.8	500.0	647.3	500.0
Senior Notes							300.0	300.0	400.0	400.0	500.0	500.0	500.0	500.0	750.0	750.0	600.0	600.0
Zero-coupon LYONs due 2021																			281.4	379.6
Other	127.4	251.0
Subtotal	5,343.1	5,305.2
Less – currently payable	55.5	98.4
Long-term debt	$ 5,287.6	$ 5,206.8
Interest rate of debt instrument			4.50%	4.50%					1.30%		2.30%		5.625%		5.40%		3.90%		0.00%