Intangible Assets

Indefinite-Lived Intangible Assets

Our indefinite-lived intangible assets consist of FCC licenses, which were acquired primarily through FCC auctions and business combinations, certain of our trademarks, and goodwill. At March 31, 2018, we held 800 MHz, 1.9 GHz and 2.5 GHz FCC licenses authorizing the use of radio frequency spectrum to deploy our wireless services. As long as the Company acts within the requirements and constraints of the regulatory authorities, the renewal and extension of these licenses is reasonably certain at minimal cost. Accordingly, we have concluded that FCC licenses are indefinite-lived intangible assets. Our Sprint and Boost Mobile trademarks have also been identified as indefinite-lived intangible assets. Goodwill represents the excess of consideration paid over the estimated fair value of net tangible and identifiable intangible assets acquired in business combinations.

During the year ended March 31, 2018, Sprint and PRWireless PR, Inc. completed a transaction to combine their operations in Puerto Rico and the U.S. Virgin Islands into a new entity named PRWireless HoldCo, LLC. The companies contributed employees, subscribers, network assets and spectrum to the transaction. Sprint and PRWireless PR, Inc. have an approximate 68% and a 32% preferred economic interest, as well as a 55% and 45% common voting interest in the new entity, respectively. Sprint's ownership represents a controlling financial interest and as a result consolidates the entity and presents a noncontrolling interest in its consolidated financial statements. The consideration transferred by Sprint has been preliminarily allocated to assets acquired and liabilities assumed from PRWireless PR, Inc. based on their estimated fair values at the time of the transaction. The preliminary purchase accounting adjustments represent management's current best estimate of fair value but could change as additional information is obtained and evaluated. Beginning total assets and liabilities of the new entity were approximately $390 million and $240 million, respectively. Of these amounts, approximately $270 million and $220 million represent the fair value of the PRWireless PR, Inc. asset and liability contribution, respectively, which have increased the corresponding financial statement line items in the Sprint consolidated balance sheet at March 31, 2018. The acquired assets primarily consist of approximately $150 million of FCC licenses, $35 million of other intangible assets and $85 million of current and fixed assets. The acquired liabilities consist of approximately $170 million of long-term debt and $50 million of other current liabilities.

The following provides the activity of indefinite-lived intangible assets within the consolidated balance sheets:



	March 31, 2017		Net Additions			March 31, 2018
	(in millions)
FCC licenses	$	36,550	$	724	⁽¹⁾	$	37,274
Trademarks	4,035		—			4,035
Goodwill ⁽³⁾	6,579		7		⁽²⁾	6,586
	$	47,164	$	731		$	47,895



	March 31, 2016		Net Additions		March 31, 2017
	(in millions)
FCC licenses	$	36,038	$	512	$	36,550
Trademarks	4,035		—		4,035
Goodwill ⁽³⁾	6,575		4		6,579
	$	46,648	$	516	$	47,164

_________________


(1)	During the year ended March 31, 2018, net additions within FCC licenses include a $479 million increase from spectrum license exchanges described below, and approximately $150 million of spectrum licenses as a result of the transaction with PRWireless PR, Inc. described above.


(2)	During the year ended March 31, 2018, approximately $7 million was added to goodwill as a result of the transaction with PRWireless PR, Inc. as described above.


(3)	Through March 31, 2018 there is no accumulated impairment losses for goodwill.

Spectrum License Exchanges

In the first quarter of fiscal year 2017, we exchanged certain spectrum licenses with other carriers in non-cash transactions. As a result, we recorded a non-cash gain of $479 million, which represented the difference between the fair value and the net book value of the spectrum transferred to the other carriers resulting in a non-cash investing activity for the fair value of the licenses received of $921 million. The gain was presented in "Other, net" in the consolidated statements of operations for the year ended March 31, 2018.

Assessment of Impairment

Our annual impairment testing date for goodwill and indefinite-lived intangible assets is January 1 of each year; however, we test for impairment between our annual tests if an event occurs or circumstances change that indicate that the asset may be impaired, or in the case of goodwill, that the fair value of the reporting unit is below its carrying amount. We did not record any impairment during the years ended March 31, 2018 and 2017.

Our stock price at March 31, 2018 of $4.88 was below the net book value per share price of $6.58. However, subsequent to the balance sheet date, the stock price has increased to $5.14 at May 23, 2018. The quoted market price of our stock is not the sole consideration of fair value. Other considerations include, but are not limited to, expectations of future results as well as broad market and industry data.

The determination of fair value requires considerable judgment and is highly sensitive to changes in underlying assumptions. Consequently, there can be no assurance that the estimates and assumptions made for the purposes of the goodwill, spectrum licenses, and Sprint and Boost Mobile trade names impairment tests will prove to be an accurate prediction of the future. Sustained declines in the Company’s operating results, number of wireless subscribers, future forecasted cash flows, growth rates and other assumptions, as well as significant, sustained declines in the Company’s stock price and related market capitalization could impact the underlying key assumptions and our estimated fair values, potentially leading to a future material impairment of goodwill or other indefinite-lived intangible assets.

Intangible Assets Subject to Amortization

Customer relationships are amortized using the sum-of-the-months' digits method, while all other definite-lived intangible assets are amortized using the straight-line method over the estimated useful lives of the respective assets. We reduce the gross carrying value and associated accumulated amortization when specified intangible assets become fully amortized. Amortization expense related to favorable spectrum and tower leases is recognized in "Cost of services" in our consolidated statements of operations.



		March 31, 2018							March 31, 2017
	Useful Lives	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
		(in millions)
Customer relationships	5 to 8 years	$	6,562	$	(5,462	)	$	1,100	$	6,923	$	(5,053	)	$	1,870
Other intangible assets:
Favorable spectrum leases	23 years	856		(172		)	684		869		(138		)	731
Favorable tower leases	7 years	335		(179		)	156		589		(386		)	203
Trademarks	2 to 34 years	520		(74		)	446		520		(58		)	462
Other	5 to10 years	129		(50		)	79		91		(37		)	54
Total other intangible assets		1,840		(475		)	1,365		2,069		(619		)	1,450
Total definite-lived intangible assets		$	8,402	$	(5,937	)	$	2,465	$	8,992	$	(5,672	)	$	3,320



	Fiscal Year 2018		Fiscal Year 2019		Fiscal Year 2020		Fiscal Year 2021		Fiscal Year 2022
	(in millions)
Estimated amortization expense	$	673	$	469	$	265	$	111	$	71