Allowance for Doubtful Accounts

Our two finance receivables portfolio segments, retail and wholesale, each consist of one class of receivable based on: (i) initial measurement attributes of the receivables, and (ii) the assessment and monitoring of risk and performance of the receivables. For more information, see Note 3, Finance Receivables.

The following tables present the activity related to our allowance for doubtful accounts for our retail portfolio segment, wholesale portfolio segment, and trade and other receivables:



	Three Months Ended January 31, 2018										Three Months Ended January 31, 2017
(in millions)	Retail Portfolio			Wholesale Portfolio		Trade and Other Receivables		Total			Retail Portfolio			Wholesale Portfolio		Trade and Other Receivables			Total
Allowance for doubtful accounts, at beginning of period	$	17		$	3	$	28	$	48		$	19		$	2	$	28		$	49
Provision for doubtful accounts	—			—		1		1			5			—		1			6
Charge-off of accounts	(1		)	—		—		(1		)	(3		)	—		(1		)	(4		)
Recoveries	1			—		—		1			—			—		—			—
Other^(A)	1			—		—		1			(2		)	—		—			(2		)
Allowance for doubtful accounts, at end of period	$	18		$	3	$	29	$	50		$	19		$	2	$	28		$	49

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(A) Amounts include impact from currency translation.

The accrual of interest income is discontinued on certain impaired finance receivables. Impaired finance receivables include accounts with specific loss reserves and certain accounts that are on non-accrual status. In certain cases, we continue to collect payments on our impaired finance receivables.

The following table presents information regarding impaired finance receivables:



	January 31, 2018						October 31, 2017
(in millions)	Retail Portfolio		Wholesale Portfolio		Total		Retail Portfolio		Wholesale Portfolio		Total
Impaired finance receivables with specific loss reserves	$	19	$	—	$	19	$	16	$	—	$	16
Impaired finance receivables without specific loss reserves	—		—		—		—		—		—
Specific loss reserves on impaired finance receivables	8		—		8		7		—		7
Finance receivables on non-accrual status	19		—		19		16		—		16

The average balances of the impaired finance receivables in the retail portfolio were $18 million and $13 million during the three months ended January 31, 2018 and 2017, respectively. See Note 9, Fair Value Measurements, for information on the valuation of impaired finance receivables.

We use the aging of our receivables as well as other inputs when assessing credit quality. The following table presents the aging analysis for finance receivables:



	January 31, 2018						October 31, 2017
(in millions)	Retail Portfolio		Wholesale Portfolio		Total		Retail Portfolio		Wholesale Portfolio		Total
Current, and up to 30 days past due	$	514	$	1,127	$	1,641	$	524	$	1,244	$	1,768
30-90 days past due	36		1		37		21		1		22
Over 90 days past due	16		—		16		14		1		15
Total finance receivables	$	566	$	1,128	$	1,694	$	559	$	1,246	$	1,805