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ASSOCIATE MEDICAL BENEFITS (Tables)
 12 Months Ended
Sep. 30, 2021
Defined Benefit Plan, Postretirement Medical Plan with Prescription Drug Benefits [Abstract]  
Schedule of Changes in Accumulated Postemployment Benefit Obligations
The following tables set forth information about the retiree medical plan for domestic associates. The retiree medical plan is valued using a September 30 measurement date.
 
20212020
Change in Accumulated Plan Benefit Obligation (APBO):
Benefit obligation at beginning of year$22.4 $22.8 
Service cost0.2 0.2 
Interest cost0.4 0.6 
Plan participants’ contributions0.4 0.4 
Actuarial (gain) loss(0.8)0.7 
Benefits paid(2.4)(2.3)
Benefit obligation at end of year$20.1 $22.4 
Change in plan assets:
Fair value of plan assets at beginning of year$— $— 
Employer contribution2.0 1.9 
Plan participants’ contributions0.4 0.4 
Gross benefits paid(2.4)(2.3)
Fair value of plan assets at end of year$— $— 
Unfunded status at end of year$(20.1)$(22.4)

20212020
Amounts recognized in the Consolidated Balance Sheets consist of:
Current liabilities$(1.5)$(1.6)
Noncurrent liabilities(18.6)(20.8)
Total amount accrued$(20.1)$(22.4)
Amounts recognized in AOCL consist of:
Actuarial loss$2.5 $3.6 
Prior service credit(1.4)(2.5)
Total amount recognized$1.1 $1.1 
Total change in other comprehensive loss attributable to:
Gain (loss) during the period$0.8 $(0.7)
Reclassification to net income(0.8)(0.9)
Total change in other comprehensive loss$— $(1.6)
Discount rate used in development of APBO
2.66 %2.48 %
Schedule of Expected Benefit Payments
The following benefit payments under the plan are expected to be paid by the Company and the retirees for the fiscal years indicated:
Gross
Benefit
Payments		Retiree
Contributions		Net
Company
Payments
2022$2.0 $(0.5)$1.5 
20232.1 (0.5)1.6 
20242.0 (0.5)1.5 
20252.0 (0.5)1.5 
20262.1 (0.6)1.5 
2027 – 203110.4 (3.6)6.8