v3.26.1
Stock Incentive Plans - Components of Pre-Tax Stock-Based Compensation Expense Included in Continuing Operations (Parenthetical) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation $ 6 [1] $ 3 [2] $ 16 [1] $ 12 [2]
Cash-settled Nonvested Restricted Stock Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation 1 0 2 1
Cash-settled Performance Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation $ 0 $ 0 $ 1 $ 1
[1] Included $1 million and $2 million of expense related to cash-settled nonvested restricted stock awards during the three and nine months ended June 30, 2026, respectively, and zero and $1 million of expense related to cash-settled performance units during the three and nine months ended June 30, 2026, respectively.
[2] Included zero and $1 million of expense related to cash-settled nonvested restricted stock awards during the three and nine months ended June 30, 2025, respectively, and zero and income of $1 million related to cash-settled performance units during the three and nine months ended June 30, 2025, respectively.