PENSION AND POSTRETIREMENT PLANS (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plans Disclosures [Line Items]
Minimum non-elective contribution (NEC) % for the 401(K) plan (in hundredths)		3.00%
Discretionary contribution % for the 401(K) plan, range minimum (in hundredths)		1.00%
Discretionary contribution % for the 401(K) plan, range maximum (in hundredths)		3.00%
Defined contribution retirement plan cost		$ 49.4	$ 49.0	$ 44.3
Company contributions to the defined benefit retirement plan		8.4	11.3	0
Defined Benefit Plans, Changes in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year		256.8
Fair value of plan assets at end of year		268.1	256.8
Defined Benefit Plans, Assets, Target Allocations [Abstract]
Deferred Compensation Liability, Classified, Noncurrent		36.3	26.6
Defined Benefit Plans [Domain]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations		5.00%
Projected defined benefit plan costs in fiscal 2012		7.8
Projected defined benefit plan contributions in fiscal 2012	11.0
Effect on operations for both the Company Plan and the PEP [Abstract]
Service cost		3.1	2.4	2.6
Interest cost		(14.7)	(14.9)	(17.1)
Expected return on plan assets		(17.3)	(17.3)	(18.9)
Net amortization and deferral		10.5	12.1	7.8
Defined benefit plan costs		11.0	12.1	8.6
Unamortized net gain included in accumulated other comprehensive earnings		99.6
Amortization of net loss (gain) in accumulated other comprehensive earnings, which is expected to be recognized as components of defined benefit plan costs during 2012		6.2
Defined Benefit Plans, Changes in Benefit Obligations [Roll Forward]
Beginning balance	349.7	380.7	383.2
Service cost		3.1	2.4	2.6
Interest cost		(14.7)	(14.9)	(17.1)
Actuarial (gain)/loss		(22.1)	5.8
Benefits and administrative expenses paid		(26.7)	(25.6)
Ending balance		349.7	380.7	383.2
Accumulated benefit obligation		349.7		380.7
Defined Benefit Plans, Changes in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	268.1	256.8	244.5
Actual return on plan assets		28.1	25.0
Employer contributions		9.9	12.9
Benefits and administrative expenses paid		(26.7)	(25.6)
Fair value of plan assets at end of year		268.1	256.8	244.5
Defined Benefit Plans, Weighted Average Assumptions Used in Calculating Benefit Obligations [Abstract]
Discount rate		4.80%	4.00%	4.00%
Expected long term rate of return		7.00%	7.00%	7.30%
Defined Benefit Plans, Assets, Target Allocations [Abstract]
Weighted average expected long-term rate of return for equity securities (in hundredths)		5.50%
Weighted average expected long-term rate of return for fixed income securities (in hundredths)		1.20%
Weighted average expected long-term rate of return for other assets (in hundredths)		0.30%
Equity Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations		50.00%
Fixed Income Securities [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations		45.00%
Post-Retirement Medical Plan [Member]
Defined Benefit Plans Disclosures [Line Items]
Defined Benefit Plan, Plan Amendments		(3.0)	0
Effect on operations for both the Company Plan and the PEP [Abstract]
Service cost		0.4	0.4	0.3
Interest cost		(2.5)	(2.3)	(2.2)
Net amortization and deferral		1.0	0.3	(0.2)
Defined benefit plan costs		3.9	3.0	2.3
Unamortized net gain included in accumulated other comprehensive earnings		12.7
Amortization of net loss (gain) in accumulated other comprehensive earnings, which is expected to be recognized as components of defined benefit plan costs during 2012		1.3
Defined Benefit Plans, Changes in Benefit Obligations [Roll Forward]
Beginning balance		60.7	52.7
Service cost		0.4	0.4	0.3
Interest cost		(2.5)	(2.3)	(2.2)
Participants contributions		0.3	0.4
Actuarial (gain)/loss		4.5	6.9
Benefits and administrative expenses paid		(2.7)	(2.0)
Ending balance		62.7	60.7	52.7
Defined Benefit Plans, Changes in Fair Value of Plan Assets [Roll Forward]
Benefits and administrative expenses paid		$ (2.7)	$ (2.0)
Defined Benefit Plans, Weighted Average Assumptions Used in Calculating Benefit Obligations [Abstract]
Discount rate		5.00%		4.20%