Cash Flow Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Dec. 31, 2021
Supplemental Cash Flow Information [Abstract]
Cash and cash equivalents	$ 63.7		$ 72.6
Restricted cash included in Other Current Assets	16.9		15.6
Restricted cash included in Other Assets	4.7		7.2
Total cash, cash equivalents, and restricted cash	85.3	$ 336.6	$ 95.4	$ 60.6
Accrued purchases of property and equipment	39.4	22.5
Adjustments to right-of use assets including right-of-use assets obtained in exchange for new operating lease liabilities	67.0	23.1
Adjustments to right-of use assets including right-of-use assets obtained in exchange for new finance lease liabilities	27.8	12.5
Interest payments, net of amounts capitalized and including interest on vehicle inventory financing	140.0	62.0
Income tax payments, net of income tax refunds	$ 190.8	$ 252.0