CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Net operating revenues:
Service	$ 25,368	$ 27,174	$ 29,542
Equipment	7,979	5,006	4,990
Net operating revenues	33,347	32,180	34,532
Net operating expenses:
Cost of services (exclusive of depreciation and amortization below)	7,861	9,439	9,660
Cost of products (exclusive of depreciation and amortization below)	7,077	5,795	9,309
Selling, general and administrative	7,994	8,479	9,563
Impairments	0	0	2,133	[1]
Severance and exit costs	66	409	304
Depreciation	7,098	5,794	3,797
Amortization	1,052	1,294	1,552
Other, net	435	660	109
Total costs and expenses	31,583	31,870	36,427
Operating (loss) income	1,764	310	(1,895)
Other (expense) income:
Interest expense	(2,495)	(2,182)	(2,051)
Other income (expense), net	(40)	18	27
Nonoperating income (expense)	(2,535)	(2,164)	(2,024)
Loss (income) before income taxes	(771)	(1,854)	(3,919)
Income tax benefit (expense)	(435)	(141)	574
Net loss	$ (1,206)	$ (1,995)	$ (3,345)
Basic and diluted net loss per common share	$ (0.30)	$ (0.50)	$ (0.85)
Basic and diluted weighted average common shares outstanding	3,981	3,969	3,953

[1] (2)Impairments for the year ended March 31, 2015 consist of a $1.9 billion trade name impairment related to the Wireless segment and a $233 million impairment related to Wireline long-lived assets.