DEBT (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Long-Term Debt
Debt Instrument, Face Amount	$ 1,500.0		$ 1,500.0		$ 1,500.0
Unamortized basis adjustment for settled interest rate swaps	9.3		9.3		16.7
Unamortized bond discount	(4.1)		(4.1)		(2.0)
Fair value interest rate swaps	(8.4)		(8.4)		0
Long-term Debt Current Portion	0		0		505.6
Long-term debt	1,496.8		1,496.8		1,009.1
Proceeds from Issuance of 2044 Notes after deducting underwriter's discounts and offering expenses			492.0
Long-term debt - fair value	1,640.0		1,640.0
Interest expense	20.6	14.5	53.2	45.3
Interest income	(2.3)	(2.2)	(7.2)	(6.4)
Interest expense-net	18.3	12.3	46.0	38.9
3.50% Notes due 2014
Long-Term Debt
Debt Instrument, Face Amount	0		0		500.0
Stated rate (as a percent)	3.50%		3.50%		3.50%
4.90% Notes due 2019
Long-Term Debt
Debt Instrument, Face Amount	700.0		700.0		700.0
Stated rate (as a percent)	4.90%		4.90%		4.90%
5.90% Notes due 2039
Long-Term Debt
Debt Instrument, Face Amount	300.0		300.0		300.0
Stated rate (as a percent)	5.90%		5.90%		5.90%
4.60% Notes due 2044
Long-Term Debt
Debt Instrument, Face Amount	$ 500.0		$ 500.0		$ 0
Stated rate (as a percent)	4.60%		4.60%		0.00%
Debt Instrument, Redemption Price, Percentage	99.465%