Debt (Vendor Financing Obligations) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Vendor Financing Obligation [Roll Forward]
Balance at January 1	$ 15,857.6
Principal payments on operating-related vendor financing	(191.0)	$ (143.5)
Principal payments on capital-related vendor financing	(45.1)	(104.5)
Balance at March 31	15,602.5
Vendor financing
Vendor Financing Obligation [Roll Forward]
Balance at January 1	768.7	704.7
Operating-related vendor financing additions	159.8	141.4
Capital-related vendor financing additions	39.8	42.3
Principal payments on operating-related vendor financing	(191.0)	(143.5)
Principal payments on capital-related vendor financing	(45.1)	(104.5)
Foreign currency and other	(24.2)	14.9
Balance at March 31	$ 708.0	$ 655.3