Commitments and Contingencies (Tables)

12 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Contractual Obligation by Maturity Year

As of March 31, 2018, the minimum estimated amounts due under operating leases, spectrum leases and service credits, and purchase orders and other commitments were as follows:

Future Minimum Commitments	Total		Fiscal Year 2018		Fiscal Year 2019		Fiscal Year 2020		Fiscal Year 2021		Fiscal Year 2022		Fiscal Year 2023 and thereafter
	(in millions)
Operating leases	$	13,002	$	2,205	$	2,147	$	2,035	$	1,739	$	1,198	$	3,678
Spectrum leases and service credits	6,759		249		272		248		266		262		5,462
Purchase orders and other commitments	11,068		7,732		1,029		565		393		235		1,114
Total	$	30,829	$	10,186	$	3,448	$	2,848	$	2,398	$	1,695	$	10,254