SHAREHOLDERS' EQUITY (Details) - USD ($) $ in Millions	3 Months Ended		47 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Nov. 01, 2021	Apr. 26, 2018
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Value	$ 263.2
Stock options exercised, Shares	200,000	1,200,000
Stock options exercised, Value	$ 5.2	$ 25.7
Foreign Currency Translation Adjustment (net of taxes)
Beginning balance	(10.9)	19.4
Unrealized (losses) gains	(10.5)	(11.4)
Reclassification adjustments of losses (gains) into income	0.0	0.0
Tax benefit (provision)	0.0	0.0
Net change	(10.5)	(11.4)
Ending Balance	(21.4)	8.0	$ (21.4)
Unrealized (Losses) Gains on Derivative Contracts (net of taxes)
Beginning balance	22.8	21.4
Unrealized (losses) gains	52.8	122.0
Reclassification adjustments of losses (gains) into income	(12.4)	(112.8)
Tax benefit (provision)	(9.7)	(2.2)
Net change	30.7	7.0
Ending balance	53.5	28.4	53.5
Pension and Other Postretirement Benefits (net of taxes)
Beginning balance	(499.9)	(730.7)
Unrealized (losses) gains	0.0	0.0
Reclassification adjustments of losses (gains) into income	8.9	13.7
Tax benefit (provision)	(2.3)	(3.1)
Net change	6.6	10.6
Ending balance	(493.3)	(720.1)	(493.3)
Accumulated Other Comprehensive Loss
Beginning balance	(488.0)	(689.9)
Unrealized (losses) gains	42.3	110.6
Reclassification adjustments of losses (gains) into income	(3.5)	(99.1)
Tax benefit (provision)	(12.0)	(5.3)
Net change	26.8	6.2
Ending balance	(461.2)	$ (683.7)	$ (461.2)
2021 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock Repurchased and Retired During Period, Value	$ 211.0
Common Stock | 2018 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized share repurchase program (in dollars)					$ 500.0
Stock Repurchased and Retired During Period, Shares	5,200,000	0	15,700,000
Common Stock | 2021 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Authorized share repurchase program (in dollars)				$ 1,000.0
Stock Repurchased and Retired During Period, Shares	4,300,000
Remaining authorized repurchase amount (in dollars)	$ 789.0		$ 789.0