REVENUE - Contract balances (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Contract assets	$ 1,023.9		$ 1,023.9		$ 966.0
Contract liabilities	(711.1)		(711.1)		(1,012.9)
Net contract assets (liabilities)	312.8		312.8		$ (46.9)
Contract assets, increase (decrease)			$ 57.9
Contract with customer, asset, net, current, increase (decrease), (in percent)			6.00%
Contract (liabilities), (increase) decrease			$ 301.8
Contract with customer liability, current, increase (decrease), (in percent)			29.80%
Net contract assets (liabilities), increase (decrease)			$ 359.7
Contract assets (liabilities), current, net, increase (decrease), (in percent)			767.00%
Contract with customer, liability, revenue recognized	256.0	$ 53.4	$ 471.7	$ 250.5
Contract with customer, performance obligation satisfied in previous period	$ 97.2	$ 4.3	$ 119.2	$ 6.9