Equity Method Investments (Net Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Assets, Current	$ 10,902.9	$ 12,867.5
Total assets	54,842.8	61,553.0
Current liabilities	9,884.4	10,562.9
Total liabilities	34,350.1	38,598.9
Consolidated Entity
Schedule of Equity Method Investments [Line Items]
Assets, Current	4.2	38.9
Noncurrent assets	0.5	1.0
Total assets	4.7	39.9
Current liabilities	2.8	33.0
Noncurrent liabilities	0.0	1.8
Total liabilities	2.8	34.8
Net assets	$ 1.9	$ 5.1