Income Taxes - Earnings from Continuing Operations before Income Taxes (Details) - USD ($) $ 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 before income taxes: | |||||||||||
| U.S. | $ 526.4 | $ 450.0 | $ 398.6 | ||||||||
| Foreign | 80.8 | 111.1 | 89.5 | ||||||||
| Earnings before income taxes | $ 230.0 | $ 223.6 | $ 64.3 | $ 89.3 | $ 258.0 | $ 125.2 | $ 103.5 | $ 74.3 | $ 607.3 | $ 561.0 | $ 488.1 |