v3.19.2
Earnings Per Share - Computation of Diluted EPS (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 12 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Earnings Per Share [Abstract]                      
Net earnings $ 183.2 $ 172.2 $ 49.9 $ 76.7 $ 206.9 $ 109.1 $ 62.1 $ 49.9 $ 482.1 $ 427.9 $ 326.8
Diluted Weighted-average shares outstanding (in shares)                 118.8 120.4 120.8
Diluted EPS (in dollars per share) $ 1.55 $ 1.45 $ 0.42 $ 0.64 $ 1.72 $ 0.90 $ 0.52 $ 0.42 $ 4.06 $ 3.56 $ 2.70