Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Apr. 30, 2021

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

Schedule II – Valuation and Qualifying Accounts

For the Years Ended April 30, 2019, 2020, and 2021

(Expressed in millions)

Col. A	Col. B		Col. C(1)		Col. C(2)		Col. D			Col. E
Description	Balance at Beginning of Period		Additions Charged to Costs and Expenses		Additions Charged to Other Accounts		Deductions			Balance at End of Period
2019
Allowance for doubtful accounts	$	7	$	1	$	—	$	1	(1)	$	7
Deferred tax valuation allowance	$	29	$	1	$	1	$	6		$	25
2020
Allowance for doubtful accounts	$	7	$	4	$	—	$	—		$	11
Deferred tax valuation allowance	$	25	$	2	$	—	$	5		$	22
2021
Allowance for doubtful accounts	$	11	$	—	$	—	$	4	(1)	$	7
Deferred tax valuation allowance	$	22	$	10	$	—	$	12		$	20

 

(1)Doubtful accounts written off, net of recoveries.