
Note 7.	Intangible Assets

Indefinite-Lived Intangible Assets



	December 31, 2010		Net Additions		December 31, 2011		Net Additions		December 31, 2012
	(in millions)
FCC licenses	$	19,927	$	117	$	20,044	$	224	$	20,268
Trademarks	409		—		409		—		409
Goodwill	359		—		359		—		359
	$	20,695	$	117	$	20,812	$	224	$	21,036

We hold 1.9 gigahertz (GHz), 800 megahertz (MHz), and 900 MHz 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. We are not aware of any technology being developed that would render this spectrum obsolete and have concluded that these licenses are indefinite-lived intangible assets. Our Sprint and Boost Mobile trademarks have also been identified as indefinite-lived intangible assets. During 2012, we conducted our annual assessment of the estimated fair value of indefinite-lived intangible assets other than goodwill and determined that no adjustment was necessary.

Goodwill

Goodwill represents the excess of consideration paid over the estimated fair value of net tangible and identifiable intangible assets acquired in business combinations.

Goodwill Recoverability Assessment

The carrying value of Sprint's goodwill is included in the Wireless segment, which represents our wireless reporting unit. We estimate the fair value of the wireless reporting unit using both discounted cash flow and market-based valuation models. If the fair value of the wireless reporting unit exceeds its net book value, goodwill is not impaired, and no further testing is necessary. If the net book value of our wireless reporting unit exceeds its estimated fair value, we estimate the fair value of goodwill to determine the amount of impairment loss, if any.

The determination of the estimated fair value of the wireless reporting unit requires significant estimates and assumptions. These estimates and assumptions primarily include, but are not limited to, transactions within the wireless industry and related control premiums, discount rate, terminal growth rate, operating income before depreciation and amortization (OIBDA) and capital expenditure forecasts. Due to the inherent uncertainty involved in making those estimates, actual results could differ from those estimates. We evaluate the merits of each significant assumption, both individually and in the aggregate, used to determine the fair value of the wireless reporting unit for reasonableness. During 2012, we conducted our annual assessment of goodwill and determined that no adjustment was necessary.

Intangible Assets Subject to Amortization

Sprint's remaining customer relationships are amortized using the sum-of-the-months' digits method. We reduce the gross carrying value and associated accumulated amortization when specified intangible assets become fully amortized. During 2012, we reduced the gross carrying value and accumulated amortization by approximately $107 million associated with fully amortized intangible assets primarily related to customer relationships in connection with the 2007 acquisition of Northern PCS. Other intangible assets primarily include certain rights under affiliation agreements that were reacquired in connection with the acquisitions of Affiliates and Nextel Partners, Inc., which are being amortized over the remaining terms of those affiliation agreements on a straight-line basis, and the Nextel, Direct Connect and Virgin Mobile trade names, which are being amortized on a straight-line basis. During 2012, we conducted an assessment of the recoverability of intangible assets subject to amortization and determined that no adjustment was necessary.



		December 31, 2012							December 31, 2011
	Useful Lives	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Gross Carrying Value		Accumulated Amortization			Net Carrying Value
							(in millions)
Customer relationships	4 years	$	234	$	(230	)	$	4	$	341	$	(297	)	$	44
Other intangible assets
Trademarks	10 to 37 years	1,168		(681		)	487		1,169		(585		)	584
Reacquired rights	9 to 14 years	1,571		(785		)	786		1,571		(652		)	919
Other	9 to 10 years	138		(80		)	58		126		(57		)	69
Total other intangible assets		2,877		(1,546		)	1,331		2,866		(1,294		)	1,572
Total definite-lived intangible assets		$	3,111	$	(1,776	)	$	1,335	$	3,207	$	(1,591	)	$	1,616



	2013		2014		2015		2016		2017
	(in millions)
Estimated amortization expense	$	250	$	237	$	196	$	135	$	134