Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Narrative (Details)

v3.21.2
Shareholders' Equity - Narrative (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2021
Jun. 30, 2021
Jun. 30, 2020
Class of Stock [Line Items]      
Cash dividends paid on common stock   $ 48.4 $ 47.6
Treasury Stock      
Class of Stock [Line Items]      
Common stock, shares issued 0.1 0.5 (0.1)