CASH AND CASH EQUIVALENTS CONTINUING OPERATIONS (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Noncurrent restricted cash
Rabbi trust funding related to potential change in control	$ 113.3
Significant noncash transactions
Construction costs funded through accounts payable	169.9	98.4
Equity issued for employee stock ownership plan	1.7	10.3
Equity issued for stock-based compensation plans	0	16.2
Equity issued for reinvested dividends	0	9.1
Contingent consideration and payables related to the acquisition of Compass Energy Services	$ 0	$ 7.9