Other Consolidated Financial Statement Detail - Other Income (Expense), Net (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest income	$ 42.0	$ 120.0	$ 112.5
Interest expense	(222.5)	(187.4)	(200.6)
Gain (loss) on investments, net	685.7	204.7	119.5
Foreign exchange gains (losses), net	(10.7)	(7.0)	(9.9)
Other, net	2.9	(47.0)	(10.5)
Total other income (expense), net	$ 497.4	$ 83.3	$ 11.0

Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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