v3.26.1
SHAREHOLDERS' EQUITY, Common Stock Outstanding Roll Forward (Details) - shares
3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Balance beginning of period (in shares) 197,000,000.0 204,600,000 198,139,594 203,300,000
Repurchases of common stock under the Board of Directors’ common stock repurchase authorization (in shares) (2,500,000) (1,700,000) (5,000,000.0) (2,000,000.0)
Issuances due to vesting of RSUs, employee stock purchases, and exercise of stock options, net of forfeitures (in shares) 100,000 200,000 1,500,000 1,800,000
Balance end of period (in shares) 194,643,210 203,100,000 194,643,210 203,100,000