Leases and Property and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Lease Cost [Abstract]
Operating lease cost	$ 209.6	$ 216.2
Variable lease cost	16.5	29.9
Short-term lease cost	3.9	2.5
Sublease income	(0.9)	(3.7)
Total Operating Lease Cost	229.1	244.9
Finance leases, Depreciation of ROU assets	58.9	58.9
Finance leases, Interest	8.3	7.4
Total Finance Lease Cost	67.2	66.3
Total Lease Cost	296.3	311.2
Maturities of Lease Liabilities [Abstract]
Operating Leases Payments, 2025	238.5
Operating Leases Payments, 2026	208.8
Operating Leases Payments, 2027	162.7
Operating Leases Payments, 2028	127.7
Operating Leases Payments, 2029	98.2
Operating Leases Payments, Thereafter	449.2
Operating Leases Payments, Total lease payments	1,285.1
Operating Leases Payments, Less: Interest	266.4
Operating Leases Payments, Present Value of Lease Liabilities	1,018.7	1,070.3
Finance Leases Payments, 2025	55.7
Finance Leases Payments, 2026	37.1
Finance Leases Payments, 2027	22.2
Finance Leases Payments, 2028	9.1
Finance Leases Payments, 2029	3.5
Finance Leases Payments, Thereafter	2.2
Finance Leases Payments, Total lease payments	129.8
Finance Leases Payments, Less: Interest	8.1
Finance Leases Payments, Present Value of Lease Liabilities	121.7
Balance Sheet Classification and Weighted Average Remaining Lease Term and Weighted Average Discount Rate Related to Operating Leases [Abstract]
Operating Lease Right-Of-Use Assets	$ 1,043.6	$ 1,046.4
Operating lease liability, current, balance sheet classification	Other current liabilities	Other current liabilities
Operating lease liability, current	$ 204.5	$ 217.3
Long-Term Liability - Operating Leases	814.2	853.0
Operating lease liability, total	$ 1,018.7	$ 1,070.3
Operating leases, weighted average remaining lease term	6 years 2 months 12 days	6 years 4 months 24 days
Operating leases, weighted average discount rate	3.90%	3.70%
Property and Equipment and Finance Leases [Abstract]
Property and equipment - owned	$ 1,520.3	$ 1,620.9
Equipment under finance leases	401.3	404.4
Property and Equipment, Gross	1,921.6	2,025.3
Property and Equipment, accumulated depreciation	(1,096.9)	(1,150.4)
Property and Equipment, Net	$ 824.7	$ 874.9
Finance lease liability, current, balance sheet classification	Other current liabilities
Finance lease liability, noncurrent, balance sheet classification	Long-Term Liabilities
Finance leases, weighted average remaining lease term	2 years 7 months 6 days	2 years 10 months 24 days
Finance leases, weighted average discount rate	7.30%	6.60%