Installment Receivables (Tables)

3 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Summary of Installment Receivables

The following table summarizes the installment receivables:

	June 30, 2018			March 31, 2018
	(in millions)
Installment receivables, gross	$	1,232		$	1,472
Deferred interest	(50		)	(106		)
Installment receivables, net of deferred interest	1,182			1,366
Allowance for credit losses	(199		)	(217		)
Installment receivables, net	$	983		$	1,149
Classified in the consolidated balance sheets as:
Accounts and notes receivable, net	$	841		$	995
Other assets	142			154
Installment receivables, net	$	983		$	1,149

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:

	June 30, 2018						March 31, 2018
	Prime		Subprime		Total		Prime		Subprime		Total
	(in millions)						(in millions)
Unbilled	$	782	$	337	$	1,119	$	951	$	391	$	1,342
Billed - current	62		24		86		69		29		98
Billed - past due	15		12		27		17		15		32
Installment receivables, gross	$	859	$	373	$	1,232	$	1,037	$	435	$	1,472

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:

	Three Months Ended			Twelve Months Ended
	June 30, 2018			March 31, 2018
	(in millions)
Deferred interest and allowance for credit losses, beginning of period	$	323		$	506
Adjustment to deferred interest on short- and long-term installment receivables due to Topic 606	(50		)	—
Bad debt expense	15			142
Write-offs, net of recoveries	(33		)	(224		)
Change in deferred interest on short- and long-term installment receivables	(6		)	(101		)
Deferred interest and allowance for credit losses, end of period	$	249		$	323