ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Changes in accumulated other comprehensive loss
Accumulated other comprehensive loss, balance at beginning of period	$ (40.9)
Other comprehensive income before reclassifications	13.9
Amounts reclassified out of accumulated other comprehensive loss	3.8
Net current period other comprehensive income	17.7
Accumulated other comprehensive loss, balance at end of period	(23.2)
Cash flow hedges
Changes in accumulated other comprehensive loss
Accumulated other comprehensive loss, balance at beginning of period	(5.2)
Other comprehensive income before reclassifications	0.7
Amounts reclassified out of accumulated other comprehensive loss	1.4
Net current period other comprehensive income	2.1
Accumulated other comprehensive loss, balance at end of period	(3.1)
Defined benefit plans
Changes in accumulated other comprehensive loss
Accumulated other comprehensive loss, balance at beginning of period	(35.7)
Other comprehensive income before reclassifications	13.2
Amounts reclassified out of accumulated other comprehensive loss	2.4
Net current period other comprehensive income	15.6
Accumulated other comprehensive loss, balance at end of period	$ (20.1)