Debt (Schedule Of Long-Term Debt) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument
Unamortized issuing fees	$ (10.7)	$ (11.4)
Total debt	3,933.9	4,191.7
Less: current borrowings	208.9	67.4
Long-term debt	3,725.0	4,124.3
Commercial paper
Debt Instrument
Long-term debt, gross	1,456.7	1,916.1
Synthetic bonds due 2021
Debt Instrument
Long-term debt, gross	$ 484.7	$ 490.9
Senior Notes \| 3.45% Senior Notes due 2022
Debt Instrument
Interest rate, stated percentage	3.45%	3.45%
Long-term debt, gross	$ 500.0	$ 500.0
Private Placement Notes \| 5.00% 2010 Private placement notes due 2020
Debt Instrument
Interest rate, stated percentage	5.00%	5.00%
Long-term debt, gross	$ 224.7	$ 229.0
Private Placement Notes \| 3.40% 2012 Private placement notes due 2022
Debt Instrument
Interest rate, stated percentage	3.40%	3.40%
Long-term debt, gross	$ 168.5	$ 171.8
Private Placement Notes \| 3.15% 2013 Private placement notes due 2023
Debt Instrument
Interest rate, stated percentage	3.15%	3.15%
Long-term debt, gross	$ 146.0	$ 148.9
Private Placement Notes \| 3.15% 2013 Private placement notes due 2023
Debt Instrument
Interest rate, stated percentage	3.15%	3.15%
Long-term debt, gross	$ 140.4	$ 143.1
Private Placement Notes \| 4.00% 2012 Private placement notes due 2027
Debt Instrument
Interest rate, stated percentage	4.00%	4.00%
Long-term debt, gross	$ 84.2	$ 85.9
Private Placement Notes \| 4.00% 2012 Private placement notes due 2032
Debt Instrument
Interest rate, stated percentage	4.00%	4.00%
Long-term debt, gross	$ 112.3	$ 114.5
Private Placement Notes \| 3.75% 2013 Private placement notes due 2033
Debt Instrument
Interest rate, stated percentage	3.75%	3.75%
Long-term debt, gross	$ 112.3	$ 114.5
Bank borrowings
Debt Instrument
Long-term debt, gross	478.7	265.2
Other
Debt Instrument
Long-term debt, gross	$ 36.1	$ 23.2

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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