Revenue Recognition and Accounts Receivable (Accounts Receivable, Net) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, net	$ 3,774.4	$ 3,891.3
Other receivables	492.0	952.5
Accounts receivable, net	4,266.4	4,843.8
Proceeds from Sale and Collection of Receivables	29.6	153.0
Allowance for doubtful accounts
Accounts, Notes, Loans and Financing Receivable [Line Items]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount	$ 154.5	$ 159.9	$ 72.8	$ 98.2
Credit Concentration Risk | Accounts Receivable | Three Customers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration risk, percentage	18.00%	12.00%
Variable Consideration [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, net	$ 1,688.6	$ 1,802.9
Other receivables	1,362.1	1,211.8
Accounts receivable, net	$ 3,050.7	$ 3,014.7