Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2020

Description Of Business And Summary Of Significant Accounting Policies [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure

The following table represents a summary of the changes in the reserve for allowance for doubtful accounts, returns and allowances and cash discounts for fiscal 2020, 2019 and 2018 (in millions):

	2020			2019			2018
Balance at beginning of fiscal year	$	53.2		$	49.7		$	45.8
Reduction in sales and charges to costs and expenses		270.8			259.6			202.8
Deductions		(257.7	)		(256.1	)		(198.9	)
Balance at end of fiscal year	$	66.3		$	53.2		$	49.7

Property, Plant and Equipment, Estimated Useful Lives

For financial reporting purposes, we provide depreciation and amortization primarily on a straight-line method generally over the estimated useful lives of the assets as follows:

Buildings and building improvements	15-40 years
Machinery and equipment	3-25 years
Transportation equipment	3-8 years