Subsequent Events (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
	Jul. 26, 2022	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021	Jul. 25, 2022
Subsequent Event [Line Items]
Gross Repayments of Long-term debt		$ 73.9	$ 915.0	$ 1,698.3
5.50% Senior Notes Maturing in December 2029 | Senior Notes
Subsequent Event [Line Items]
Gross Repayments of Long-term debt		15.0
Debt Instrument, Issuance Price, Percentage of Par Value			103.50%
4.50% Senior Notes Maturing in September 2031 | Senior Notes
Subsequent Event [Line Items]
Gross Repayments of Long-term debt		58.9	$ 58.9
5.75% Senior Notes Maturing March 2027 | Senior Notes
Subsequent Event [Line Items]
Gross Repayments of Long-term debt			$ 840.0
Gross Repayments of Long-term debt, percentage			65.00%
Incremental Term Loan | Term Loan
Subsequent Event [Line Items]
Loans Payable to Bank		$ 840.0	$ 840.0
Gross Repayments of Long-term debt			$ 840.0
Subsequent Event | Senior Notes
Subsequent Event [Line Items]
Gross Repayments of Long-term debt	$ 450.0
Subsequent Event | 4.625% Senior Notes Maturing April 2030 | Senior Notes
Subsequent Event [Line Items]
Gross Repayments of Long-term debt	$ 139.8
Gross Repayments of Long-term debt, percentage	8.00%
Debt Instrument, Issuance Price, Percentage of Par Value	87.00%
Subsequent Event | 4.50% Senior Notes Maturing in September 2031 | Senior Notes
Subsequent Event [Line Items]
Gross Repayments of Long-term debt	$ 381.8
Gross Repayments of Long-term debt, percentage	22.00%
Debt Instrument, Issuance Price, Percentage of Par Value	86.00%
Subsequent Event | Second Incremental Term Loan | Term Loan
Subsequent Event [Line Items]
Loans Payable to Bank					$ 450.0