DEBT (Commercial Paper) (Details) - USD ($) $ in Millions	6 Months Ended			12 Months Ended
	Jun. 30, 2015		Jun. 30, 2014	Dec. 31, 2014
Principal amount of commercial paper issuances	$ 1,257.6			$ 612.3
Net commercial paper borrowings (Note 8)	644.9		$ 765.0
Borrowings of Commercial Paper	5,717.3
Repayments of Commercial Paper	5,072.4
Commercial Paper [Member]
Commercial paper aggregate principal amount supported by Credit Facilities	$ 1,500.0
Weighted average interest rate of Commercial paper excluding the effect of interest rate hedging activities	0.763%	[1]		0.50%

[1] Individual issuances of commercial paper generally mature in 90 days or less, but are supported by our Credit Facilities and are therefore considered long-term debt.