Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Share Repurchases (Details)

v3.19.1
Stockholders' Equity - Share Repurchases (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended
Feb. 08, 2019
Mar. 31, 2019
Mar. 31, 2018
Class of Stock      
Payment for shares acquired $ 434.0 $ 433.6 $ 0.0
Percentage of outstanding shares (percent) 13.00%    
Common Stock      
Class of Stock      
Treasury shares acquired (in shares) 37    
Treasury stock price (usd per share) $ 11.72