Subsequent Events (Details) - USD ($)	Nov. 13, 2025	Nov. 12, 2025	Nov. 06, 2025	Sep. 30, 2025	Sep. 30, 2024
Subsequent Event [Line Items]
Preferred shares, authorized (in shares)				10,000,000.0	10,000,000.0
Subsequent Event
Subsequent Event [Line Items]
Purchase offer for Fem Care business		$ 340,000,000.0
Share Repurchase Program, Authorized, Amount	$ 100,000,000.0
Preferred shares, authorized (in shares)	10,000,000.0
Subsequent Event | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			$ 39,000,000.0
Subsequent Event | 2026 | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			23,000,000.0
Subsequent Event | Severance and related benefit costs | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			8,000,000.0
Subsequent Event | Severance and related benefit costs | 2026 | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			8,000,000.0
Subsequent Event | Asset impairment and accelerated depreciation | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			6,000,000.0
Subsequent Event | Asset impairment and accelerated depreciation | 2026 | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			3,000,000.0
Subsequent Event | Other exit costs | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			25,000,000.0
Subsequent Event | Other exit costs | 2026 | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			12,000,000.0
Subsequent Event | Cash payments | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			68,000,000.0
Subsequent Event | Estimated capital expenditures | Wet Shave Consolidation Plan
Subsequent Event [Line Items]
Restructuring and Related Cost, Expected Cost			$ 35,000,000.0