Retirement Plans - Schedule of Estimated Losses Gains Amortized from Accumulated Other Comprehensive Loss into Net Periodic Benefit Cost (Details) $ in Millions	Sep. 30, 2020 USD ($)
Pension Plan [Member] | United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected Amortization of (Gain) Loss, Next Fiscal Year	$ 20.9
Expected Amortization of Prior Service (Credit) Cost, Next Fiscal Year	7.8
Expected Amortization, Next Fiscal Year	28.7
Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected Amortization of (Gain) Loss, Next Fiscal Year	10.4
Expected Amortization of Prior Service (Credit) Cost, Next Fiscal Year	0.2
Expected Amortization, Next Fiscal Year	10.6
Other Postretirement Benefits Plan [Member] | United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected Amortization of (Gain) Loss, Next Fiscal Year	(1.3)
Expected Amortization of Prior Service (Credit) Cost, Next Fiscal Year	(2.5)
Expected Amortization, Next Fiscal Year	(3.8)
Other Postretirement Benefits Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected Amortization of (Gain) Loss, Next Fiscal Year	0.1
Expected Amortization of Prior Service (Credit) Cost, Next Fiscal Year	0.1
Expected Amortization, Next Fiscal Year	$ 0.2