Derivatives and Hedging Activities - Schedule of fair value and location of outstanding derivative contracts recorded in consolidated balance sheets (Details) - USD ($) $ in Millions	Sep. 30, 2021	Jun. 30, 2021
Liability Derivatives:
Total liability derivatives	$ 6.0
Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	16.1	$ 15.9
Liability Derivatives:
Total liability derivatives	2.9	5.3
Interest Rate Swaps | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	0.0	0.0
Liability Derivatives:
Total liability derivatives	0.0	0.0
Foreign exchange contracts | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	0.0	0.0
Liability Derivatives:
Total liability derivatives	2.1	2.6
Commodity contracts | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	16.1	15.9
Liability Derivatives:
Total liability derivatives	0.8	2.7
Other current assets | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	12.0	10.0
Other current assets | Interest Rate Swaps | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	0.0	0.0
Other current assets | Foreign exchange contracts | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	0.0	0.0
Other current assets | Commodity contracts | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	12.0	10.0
Other assets | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	4.1	5.9
Other assets | Interest Rate Swaps | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	0.0	0.0
Other assets | Foreign exchange contracts | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	0.0	0.0
Other assets | Commodity contracts | Designated as Hedging Instrument
Asset Derivatives:
Total asset derivatives	4.1	5.9
Accrued liabilities | Designated as Hedging Instrument
Liability Derivatives:
Total liability derivatives	2.5	4.2
Accrued liabilities | Interest Rate Swaps | Designated as Hedging Instrument
Liability Derivatives:
Total liability derivatives	0.0	0.0
Accrued liabilities | Foreign exchange contracts | Designated as Hedging Instrument
Liability Derivatives:
Total liability derivatives	2.1	2.6
Accrued liabilities | Commodity contracts | Designated as Hedging Instrument
Liability Derivatives:
Total liability derivatives	0.4	1.6
Other liabilities | Designated as Hedging Instrument
Liability Derivatives:
Total liability derivatives	0.4	1.1
Other liabilities | Interest Rate Swaps | Designated as Hedging Instrument
Liability Derivatives:
Total liability derivatives	0.0	0.0
Other liabilities | Foreign exchange contracts | Designated as Hedging Instrument
Liability Derivatives:
Total liability derivatives	0.0	0.0
Other liabilities | Commodity contracts | Designated as Hedging Instrument
Liability Derivatives:
Total liability derivatives	$ 0.4	$ 1.1