Related Party Transactions (Tables)

9 Months Ended

Dec. 31, 2016

Brightstar [Member]

Related Party Transaction [Line Items]

Schedule of Related Party Transactions [Table Text Block]

Amounts included in our consolidated financial statements associated with these arrangements with Brightstar were as follows:

Consolidated balance sheets:	December 31, 2016		March 31, 2016
	(in millions)
Accounts receivable	$	219	$	197
Accounts payable	$	126	$	96

Consolidated statements of comprehensive loss:	Three Months Ended December 31,				Nine Months Ended December 31,
	2016		2015		2016		2015
	(in millions)
Equipment revenues	$	480	$	598	$	1,107	$	1,375
Cost of products	$	403	$	601	$	1,021	$	1,362