Goodwill and Other Intangible Assets

Note 11—Goodwill and Other Intangible Assets

Goodwill—The gross carrying amounts of goodwill and accumulated impairment associated with our contract drilling services reporting unit were as follows (in millions):

	Year ended December 31, 2013							Year ended December 31, 2012
	Gross carrying amount		Accumulated impairment			Net carrying amount		Gross carrying amount			Accumulated impairment			Net carrying amount
Balance, beginning of period	$	10,799	$	(7,812	)	$	2,987	$	10,911		$	(7,694	)	$	3,217
Impairment associated with continuing operations	—		—			—		—			(118		)	(118		)
Reclassified balance associated with discontinued operations (a)	—		—			—		(112		)	—			(112		)
Balance, end of period	$	10,799	$	(7,812	)	$	2,987	$	10,799		$	(7,812	)	$	2,987

(a) As a result of our decision to discontinue operations associated with the standard jackups and swamp barge asset groups, components of our contract drilling services operating segment, we allocated $112 million of goodwill attributable to such operations, which was subsequently impaired. See Note 7—Discontinued Operations.

Definite-lived intangible assets and liabilities—The gross carrying amounts of our drilling contract intangibles and drilling management customer relationships, both of which we consider to be definite-lived intangible assets and intangible liabilities, and accumulated amortization and impairment were as follows (in millions):

	Year ended December 31, 2013								Year ended December 31, 2012
	Gross carrying amount		Accumulated amortization and impairment			Net carrying amount			Gross carrying amount			Accumulated amortization and impairment			Net carrying amount
Drilling contract intangible assets
Balance, beginning of period	$	9	(9		)	—			$	191		$	(191	)	$	—
Amortization	—		—			—			—			—			—
Reclassified balance associated with discontinued operations (a)	—		—			—			(182		)	182			—
Balance, end of period	9		(9		)	—			9			(9		)	—

Customer relationships
Balance, beginning of period	60		(60		)	—			148			(94		)	54
Amortization	—		—			—			—			(1		)	(1		)
Impairment associated with continuing operations	—		—			—			—			(22		)	(22		)
Reclassified balance associated with discontinued operations (b)	—		—			—			(88		)	57			(31		)
Balance, end of period	60		(60		)	—			60			(60		)	—

Total definite-lived intangible assets
Balance, beginning of period	69		(69		)	—			339			(285		)	54
Amortization	—		—			—			—			(1		)	(1		)
Impairment associated with continuing operations	—		—			—			—			(22		)	(22		)
Reclassified balance associated with discontinued operations (b)	—		—			—			(270		)	239			(31		)
Balance, end of period	$	69	(69		)	—			$	69		$	(69	)	$	—

Drilling contract intangible liabilities
Balance, beginning of period	$	1,410	$	(1,351	)	$	59		$	1,494		$	(1,393	)	$	101
Amortization	—		(15		)	(15		)	—			(42		)	(42		)
Reclassified balance associated with discontinued operations (a)	—		—			—			(84		)	84			—
Balance, end of period	$	1,410	$	(1,366	)	$	44		$	1,410		$	(1,351	)	$	59

(a) As a result of our decision to discontinue operations associated with the standard jackup and swamp barge asset groups, we reclassified the balances attributable to such operations. See Note 7—Discontinued Operations.

(b) As a result of our decision to discontinue the U.S. operations of our drilling management services operating segment, we reclassified the balances attributable to such operations. See Note 7—Discontinued Operations.

At December 31, 2013, the estimated future amortization of our drilling contract intangible liabilities was as follows (in millions):

	Drilling contract intangible liabilities
Years ending December 31,
2014	$	15
2015	15
2016	14
Total intangible liabilities	$	44

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

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