Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

Revenue Recognition - Schedule of Product and Market Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Net Sales by products	$ 684.1	$ 685.4	$ 1,449.2	$ 1,531.7
Modern Markets
Disaggregation of Revenue [Line Items]
Net Sales by products	111.7	115.2	265.3	280.5
Developing Markets
Disaggregation of Revenue [Line Items]
Net Sales by products	96.3	99.9	204.8	215.3
Distributors Markets
Disaggregation of Revenue [Line Items]
Net Sales by products	45.2	52.6	91.9	109.3
North America
Disaggregation of Revenue [Line Items]
Net Sales by products	430.9	417.7	887.2	926.6
Batteries
Disaggregation of Revenue [Line Items]
Net Sales by products	480.1	488.5	1,119.6	1,190.2
Auto Care
Disaggregation of Revenue [Line Items]
Net Sales by products	178.2	168.9	271.7	275.0
Lights
Disaggregation of Revenue [Line Items]
Net Sales by products	$ 25.8	$ 28.0	$ 57.9	$ 66.5