ACQUISITIONS AND DIVESTITURES (Schedule of Business Acquisitions) (Details) - USD ($) $ in Millions			12 Months Ended
		Aug. 26, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Significant Acquisitions And Disposals [Line Items]
Noncontrolling interest			$ (23.6)	$ (22.7)
Goodwill	[1]		43.8	524.6
Cash			529.2	$ 1,639.4	$ 43.2
Acquisitions 2022 [Member]
Significant Acquisitions And Disposals [Line Items]
Cash			529.2
Payable to seller			65.4
Total fair value of purchase consideration			594.6
Accounts and notes receivable, net			28.0
Inventories			15.4
Other current assets			2.1
Property, plant & equipment			498.6
Deferred income taxes, net			(12.5)
Other liabilities assumed			(21.8)
Net identifiable assets acquired			582.1
Goodwill			12.5
Cash			529.2
Acquisitions 2022 [Member] | Contractual Rights In Place [Member]
Significant Acquisitions And Disposals [Line Items]
Intangible assets			72.3
U.S. Concrete [Member]
Significant Acquisitions And Disposals [Line Items]
Cash			1,634.5
Total fair value of purchase consideration		$ 1,634.5	1,634.5
Accounts and notes receivable, net			235.6
Inventories			80.6
Other current assets			8.7
Property, plant & equipment			1,086.2
Operating lease right-of-use assets			217.6
Other noncurrent assets			5.3
Deferred income taxes, net			(226.1)
Debt assumed			(443.7)
Other liabilities assumed			(546.2)
Noncontrolling interest			(22.3)
Net identifiable assets acquired			1,078.6
Goodwill			555.9
Cash		1,268.5
Obligations paid on acquisition date		384.4
Cash acquired		$ 18.4
U.S. Concrete [Member] | Contractual Rights In Place [Member]
Significant Acquisitions And Disposals [Line Items]
Intangible assets			622.6
U.S. Concrete [Member] | Other Intangibles [Member]
Significant Acquisitions And Disposals [Line Items]
Intangible assets			$ 60.3

[1] See Note 19 for a summary of recent acquisitions.