Property, Plant and Equipment (Tables)

12 Months Ended

Mar. 31, 2018

Property, Plant and Equipment [Line Items]

Property, Plant and Equipment

The following table presents the components of PP&E, and the related accumulated depreciation:

	March 31,
	2018			2017
	(in millions)
Land	$	254		$	260
Network equipment, site costs and related software	22,930			21,693
Buildings and improvements	813			818
Non-network internal use software, office equipment, leased devices and other	11,149			8,625
Construction in progress	2,202			2,316
Less: accumulated depreciation	(17,423		)	(14,503		)
Property, plant and equipment, net	$	19,925		$	19,209

Minimum Estimated Payments to be Received for Leased Devices

As of March 31, 2018, the minimum estimated payments to be received for leased devices were as follows (in millions):

Fiscal year 2018	$	3,483
Fiscal year 2019	462
	$	3,945

Leased devices [Member]

Property, Plant and Equipment [Line Items]

Property, Plant and Equipment

The following table presents leased devices and the related accumulated depreciation:

	March 31,
	2018			2017
	(in millions)
Leased devices	$	9,592		$	7,276
Less: accumulated depreciation	(3,580		)	(3,114		)
Leased devices, net	$	6,012		$	4,162