CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 8,142.4	$ 1,480.5	$ 1,672.4
Restricted cash included in other current assets and other assets, net	38.5	15.9	8.3
Restricted cash included in current and long-term assets of discontinued operations	0.0	1.9	2.1
Total cash and cash equivalents and restricted cash	$ 8,180.9	$ 1,498.3	$ 1,682.8