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Leases - Lease Expense and Cash Flow Information (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Leases [Abstract]    
Operating lease costs $ 48.7 $ 49.5
Finance lease costs:    
Amortization of leased assets 29.0 28.2
Interest on lease liabilities 35.9 30.6
Total finance lease costs 64.9 58.8
Variable and short-term lease costs 16.3 13.7
Total lease costs 129.9 122.0
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash outflows from operating leases 47.2 47.9
Operating cash outflows from finance leases 34.1 30.2
Financing cash outflows from finance leases 19.3 18.1
Right-of-use assets obtained in exchange for operating lease obligations 39.9 45.3
Right-of-use assets obtained in exchange for finance lease obligations $ 108.7 $ 172.5