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Share Repurchase Share repurchase (Details)
shares in Millions, $ in Millions
3 Months Ended
Dec. 31, 2022
USD ($)
shares
share repurchase plan [Line Items]  
Stock Repurchased During Period, Value $ 100.0
September 22, 2022  
share repurchase plan [Line Items]  
Stock Repurchase Program, Authorized Amount $ 1,000.0
Stock Repurchased During Period, Shares | shares 1.5
Stock Repurchase Program, Remaining Authorized Repurchase Amount $ 900.0
December 11, 2020  
share repurchase plan [Line Items]  
Stock Repurchase Program, Authorized Amount $ 1,000.0