Installment Receivables (Tables)

9 Months Ended

Dec. 31, 2015

Financing Receivable, Recorded Investment [Line Items]

Installment Receivables

The following table summarizes the installment receivables:

	March 31, 2015
	(in millions)
Installment receivables, gross	$	1,725
Deferred interest	(139		)
Installment receivables, net of deferred interest	1,586
Allowance for credit losses	(190		)
Installment receivables, net	$	1,396
Classified on the consolidated balance sheets as:
Accounts and notes receivable, net	$	1,035
Other assets	361
Installment receivables, net	$	1,396

Balance and Aging of Installment Receivables

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

	March 31, 2015
	Prime		Subprime		Total
	(in millions)
Unbilled	$	1,243	$	359	$	1,602
Billed - current	65		22		87
Billed - past due	21		15		36
Installment receivables, gross	$	1,329	$	396	$	1,725

Allowance for Credit Losses on Financing Receivables [Table Text Block]

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

	Nine Months Ended December 31,			Twelve Months Ended  March 31,
	2015			2015
	(in millions)
Deferred interest and allowance for credit losses, beginning of period	$	329		$	124
Bad debt expense	93			398
Write-offs, net of recoveries	(105		)	(255		)
Change in deferred interest on short-term and long-term installment receivables	(43		)	62
Derecognition of deferred interest and allowance for credit losses	(274		)	—
Deferred interest and allowance for credit losses, end of period	$	—		$	329