Installment Receivables (Tables)

6 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Summary of Installment Receivables

The following table summarizes the installment receivables:

	September 30, 2017			March 31, 2017
	(in millions)
Installment receivables, gross	$	2,017		$	2,270
Deferred interest	(157		)	(207		)
Installment receivables, net of deferred interest	1,860			2,063
Allowance for credit losses	(277		)	(299		)
Installment receivables, net	$	1,583		$	1,764
Classified on the consolidated balance sheets as:
Accounts and notes receivable, net	$	1,269		$	1,195
Other assets	314			569
Installment receivables, net	$	1,583		$	1,764

Balance and Aging of Financing Receivables by Credit Category

The balance and aging of installment receivables on a gross basis by credit category were as follows:

	September 30, 2017						March 31, 2017
	Prime		Subprime		Total		Prime		Subprime		Total
	(in millions)						(in millions)
Unbilled	$	1,354	$	507	$	1,861	$	1,501	$	619	$	2,120
Billed - current	75		35		110		74		36		110
Billed - past due	23		23		46		20		20		40
Installment receivables, gross	$	1,452	$	565	$	2,017	$	1,595	$	675	$	2,270

Schedule of Activity in the Deferred Interest Allowance for Credit Losses

Activity in the deferred interest and allowance for credit losses for the installment receivables was as follows:

	Six Months Ended			Twelve Months Ended
	September 30, 2017			March 31, 2017
	(in millions)
Deferred interest and allowance for credit losses, beginning of period	$	506		$	—
Bad debt expense	97			61
Write-offs, net of recoveries	(119		)	(28		)
Change in deferred interest on short-term and long-term installment receivables	(50		)	8
Recognition of deferred interest and allowance for credit losses	—			465
Deferred interest and allowance for credit losses, end of period	$	434		$	506