XML 13 R57.htm IDEA: XBRL DOCUMENT v3.20.1
Shareholders' Equity (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Feb. 19, 2019
Jul. 23, 2018
Equity [Abstract]          
Repurchase of shares of our common stock up to a maximum aggregate value       $ 380.0 $ 500.0
Stock Repurchased During Period, Shares 0.2 3.0      
Stock Repurchased During Period, Value $ (3.2) $ (79.9)      
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased 585.1        
Stock Repurchase Program, Number of Shares Authorized to be Repurchased 880.0        
Dividends payable (in dollars per share)       $ 0.175  
Dividends payable $ 29.7   $ 29.7