LEASES (Narrative) (Details) $ in Millions		12 Months Ended
	Apr. 17, 2020 USD ($) hydrogenPlant	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Aug. 01, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Number of hydrogen plants sold | hydrogenPlant	5
Proceeds from sale of assets	$ 530.0	$ 0.0	$ 0.0	$ 543.1
Gain on disposition of property plant equipment		(0.9)	0.2	477.8
Operating lease, liability		1,034.0
Net gains (losses) on sale-leaseback transactions		$ 0.0
Lessee, lease not yet commenced, term of contract		2 years
Lessee, leases not yet commenced, liability		$ 48.9
Operating lease costs		$ 301.5	299.1
Air Products and Chemical, Inc.
Lessee, Lease, Description [Line Items]
Proceeds from sale of assets	$ 530.0
Gain on disposition of property plant equipment				$ 471.1
Air Products and Chemical, Inc. | Transition Service Agreement
Lessee, Lease, Description [Line Items]
Supply commitment, period	18 months
Minimum
Lessee, Lease, Description [Line Items]
Non-cancelable operating lease term		1 year
Maximum
Lessee, Lease, Description [Line Items]
Non-cancelable operating lease term		20 years
Hydrogen Supply | Air Products and Chemical, Inc.
Lessee, Lease, Description [Line Items]
Non-cancelable operating lease term					15 years
Operating lease, right-of-use asset					$ 504.0
Operating lease, liability					$ 504.0
Lease with Affiliate
Lessee, Lease, Description [Line Items]
Operating lease, right-of-use asset		$ 421.6	485.4
Operating lease costs		$ 129.9	$ 129.1
Lease with Affiliate | Minimum
Lessee, Lease, Description [Line Items]
Non-cancelable operating lease term		7 years
Lease with Affiliate | Maximum
Lessee, Lease, Description [Line Items]
Non-cancelable operating lease term		15 years