DEBT (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Long-Term Debt
Debt Instrument, Face Amount	$ 2,000.0		$ 2,000.0		$ 1,500.0
Unamortized basis adjustment for terminated interest rate swaps	12.2		12.2		16.7
Unamortized bond discount	(4.4)		(4.4)		(2.0)
Interest Rate Fair Value Hedge Asset at Fair Value	(3.5)		(3.5)		0
Long-term Debt Current Portion	502.2		502.2		505.6
Long-term debt	1,502.1		1,502.1		1,009.1
Proceeds from Issuance of 2044 Notes after deducting underwriter's discounts and offering expenses	492.0
Long-term debt - fair value	2,129.2		2,129.2
Interest expense	17.8	14.8	32.6	30.8
Interest income	(2.5)	(2.4)	(4.9)	(4.2)
Interest expense-net	15.3	12.4	27.7	26.6
3.50% Notes due 2014
Long-Term Debt
Debt Instrument, Face Amount	500.0		500.0		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%