Property, Plant and Equipment (Tables)

6 Months Ended

Sep. 30, 2014

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

The following table presents the components of property, plant and equipment, and the related accumulated depreciation:

	Successor
	September 30, 2014			March 31, 2014
	(in millions)
Land	$	265		$	265
Network equipment, site costs and related software	16,810			14,902
Buildings and improvements	752			745
Non-network internal use software, office equipment and other	1,084			866
Construction in progress	2,598			1,970
Less: accumulated depreciation	(3,952		)	(2,449		)
Property, plant and equipment, net	$	17,557		$	16,299