XML 92 R81.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurement (Assets and Liabilities Measure at Fair Value on Recurring Basis using Level 3 Inputs) (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Balance at January 1, $ 1,168.2 $ 1,058.0
Acquisitions 0.0 (4.0)
Payments (647.1) 0.0
Change in fair value included in earnings 100.4 144.3
Other (5.3) (11.4)
Balance as of September 30, $ 616.2 $ 1,186.9