Debt (Vendor Financing Obligations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Roll Forward]
Balance at January 1	$ 14,398.8
Principal payments on operating-related vendor financing	(616.1)	$ (1,408.0)	$ (2,381.7)
Principal payments on capital-related vendor financing	(210.1)	(964.4)	(2,088.8)
Balance at December 31	13,370.2	14,398.8
Vendor financing
Debt Instrument [Roll Forward]
Balance at January 1	843.2	1,099.6
Balance at January 1, including amounts classified as held for sale	4,084.5	3,905.4
Operating-related vendor financing additions	522.7	1,781.6
Capital-related vendor financing additions	182.8	661.1	1,339.6
Principal payments on operating-related vendor financing	(616.1)	(1,408.0)
Principal payments on capital-related vendor financing	(210.1)	(964.4)
Foreign currency, acquisitions and other	(17.8)	108.8
Total vendor financing obligations	704.7	4,084.5	3,905.4
Balance at December 31	704.7	843.2	1,099.6
Vendor financing | U.K. J.V. Entities
Debt Instrument [Roll Forward]
Balance at January 1	3,241.3	2,805.8
Balance at December 31	$ 0.0	$ 3,241.3	$ 2,805.8