DEBT AND INTEREST - Other Debt Inforamtion (Details) € in Millions, $ in Millions	1 Months Ended	3 Months Ended			6 Months Ended
	Jan. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 EUR (€)	Jun. 30, 2016 USD ($)	Dec. 31, 2015 EUR (€)	Dec. 31, 2015 USD ($)
Debt instrument
CARRYING VALUE								$ 6,552.8		$ 5,829.6
Long-term debt, current maturities								(1,455.8)		(1,569.4)
Long-term debt								5,097.0		4,260.2
Interest
Interest expense		$ 71.5	$ 63.5		$ 140.4	$ 128.7
Interest income		(6.2)	(2.3)		(9.0)	(5.0)
Interest expense, net		$ 65.3	$ 61.2		$ 131.4	$ 123.7
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
Term loan
Debt instrument
CARRYING VALUE										125.0
Repayment of debt	$ 125.0
Series B senior euro notes, due 2016
Debt instrument
CARRYING VALUE								194.7		184.9
Aggregate principal amount | €							€ 175		€ 175
Five year 2012 senior notes
Debt instrument
CARRYING VALUE								501.5		497.9
Aggregate principal amount								500.0		500.0
Debt instrument, term					5 years
2016 Public Debt Offering
Debt instrument
Issuance of Debt securities	$ 800.0
Principal outstanding plus accrued unpaid interest payable at prepayment of notes (as a percent)	101.00%
Three year 2016 senior notes
Debt instrument
CARRYING VALUE								401.7
Aggregate principal amount	$ 400.0							$ 400.0
Debt instrument, term	3 years				3 years
Interest rate (as a percent)	2.00%						2.00%	2.00%
Seven year 2016 Senior Notes
Debt instrument
CARRYING VALUE								$ 396.8
Aggregate principal amount	$ 400.0							$ 400.0
Debt instrument, term	7 years				7 years
Interest rate (as a percent)	3.25%						3.25%	3.25%
Three year 2015 senior notes
Debt instrument
CARRYING VALUE								$ 300.5		297.8
Aggregate principal amount								300.0		300.0
Debt instrument, term					3 years
Five year 2015 senior notes
Debt instrument
CARRYING VALUE								298.4		298.1
Aggregate principal amount								300.0		300.0
Debt instrument, term					5 years
Ten Year 2015 senior euro notes
Debt instrument
CARRYING VALUE								634.3		601.8
Aggregate principal amount | €							€ 575		€ 575
Debt instrument, term					10 years
Series A private placement senior notes due 2018
Debt instrument
CARRYING VALUE								252.4		248.6
Aggregate principal amount								250.0		250.0
Series B private placement senior notes due 2023
Debt instrument
CARRYING VALUE								249.2		249.1
Aggregate principal amount								250.0		250.0
Five year 2011 senior notes
Debt instrument
CARRYING VALUE								1,249.0		1,247.3
Aggregate principal amount								1,250.0		1,250.0
Debt instrument, term					5 years
Ten year 2011 senior notes
Debt instrument
CARRYING VALUE								1,244.3		1,243.7
Aggregate principal amount								1,250.0		1,250.0
Debt instrument, term					10 years
Thirty year 2011 senior notes
Debt instrument
CARRYING VALUE								738.5		738.3
Aggregate principal amount								750.0		750.0
Debt instrument, term					30 years
Capital lease obligations
Debt instrument
CARRYING VALUE								5.7		5.6
Other
Debt instrument
CARRYING VALUE								$ 85.8		$ 91.5