Debt and Interest (Details 2) € in Millions, $ in Millions	1 Months Ended			3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2015 EUR (€)	Mar. 31, 2015 USD ($)	Jan. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2015 EUR (€)	Sep. 30, 2015 USD ($)
Debt instrument
CARRYING VALUE								$ 5,598.3		$ 6,040.4
Long-term debt, current maturities								(754.9)		(286.7)
Long-term debt								4,843.4		5,753.7
Interest
Interest expense				$ 61.6	$ 66.1	$ 190.3	$ 202.0
Interest income				(4.0)	(2.8)	(9.0)	(7.4)
Interest expense, net				$ 57.6	$ 63.3	181.3	$ 194.6
Beneficial Interest in Trust, Naperville Facility
Components of the aggregate purchase prices of the completed acquisitions
Debt assumed		$ 100.2
Property, plant and equipment		135.2
Cash consideration		19.8
Seven year 2008 senior notes
Debt instrument
CARRYING VALUE								$ 250.0
Aggregate principal amount										0.0
Repayment of debt		$ 250.0
Interest rate (as a percent)		4.88%
Debt instrument, term								7 years
Series A private placement senior notes due 2018
Debt instrument
CARRYING VALUE								$ 249.3		251.1
Aggregate principal amount										250.0
Series B private placement senior notes due 2023
Debt instrument
CARRYING VALUE								249.0		249.1
Aggregate principal amount										250.0
Series B private placement senior euro notes, due 2016
Debt instrument
CARRYING VALUE								217.7		196.1
Aggregate principal amount | €									€ 175
Three year 2012 senior notes
Debt instrument
CARRYING VALUE								499.4
Aggregate principal amount										$ 0.0
Repayment of debt						$ 500.0
Interest rate (as a percent)									1.00%	1.00%
Debt instrument, term						3 years
Five year 2011 senior notes
Debt instrument
CARRYING VALUE								1,245.3		$ 1,247.8
Aggregate principal amount										1,250.0
Debt instrument, term						5 years
Ten year 2011 senior notes
Debt instrument
CARRYING VALUE								1,242.7		1,243.5
Aggregate principal amount										1,250.0
Debt instrument, term						10 years
Thirty year 2011 senior notes
Debt instrument
CARRYING VALUE								737.8		738.1
Aggregate principal amount										750.0
Debt instrument, term						30 years
Five year 2012 senior notes
Debt instrument
CARRYING VALUE								495.0		501.2
Aggregate principal amount										500.0
Debt instrument, term						5 years
Term loan
Debt instrument
CARRYING VALUE								399.7		275.0
Aggregate principal amount										275.0
Repayment of debt						$ 125.0
Capital lease obligations
Debt instrument
CARRYING VALUE								9.3		5.4
Other
Debt instrument
CARRYING VALUE								$ 3.1		96.0
2015 Public Debt Offering
Debt instrument
Aggregate principal amount			$ 600.0
Principal outstanding plus accrued unpaid interest payable at prepayment of notes (as a percent)			101.00%
Three year 2015 senior notes
Debt instrument
CARRYING VALUE										299.9
Aggregate principal amount										300.0
Issuance of Debt securities			$ 300.0
Interest rate (as a percent)			1.55%
Debt instrument, term						3 years
Five year 2015 senior notes
Debt instrument
CARRYING VALUE										298.0
Aggregate principal amount										300.0
Issuance of Debt securities			$ 300.0
Interest rate (as a percent)			2.25%
Debt instrument, term						5 years
Ten Year 2015 senior euro notes
Debt instrument
CARRYING VALUE										$ 639.2
Aggregate principal amount | €	€ 575								€ 575
Interest rate (as a percent)	2.63%
Debt instrument, term	10 years					10 years
Principal outstanding plus accrued unpaid interest payable at prepayment of notes (as a percent)	101.00%