GOODWILL AND OTHER INTANGIBLE ASSETS

6 Months Ended

Jun. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill for our reportable segments for the six months ended June 30, 2016 were as follows:



	Retail		Group		Healthcare Services		Total
	(in millions)
Balance at January 1, 2016	$	1,069	$	385	$	1,811	$	3,265
Acquisitions	—		—		1		1
Balance at June 30, 2016	$	1,069	$	385	$	1,812	$	3,266

The following table presents details of our other intangible assets included in other long-term assets in the accompanying condensed consolidated balance sheets at June 30, 2016 and December 31, 2015.



		June 30, 2016						December 31, 2015
	Weighted Average Life	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
		($ in millions)
Other intangible assets:
Customer contracts/ relationships	9.8 yrs	$	566	$	320	$	246	$	566	$	292	$	274
Trade names and technology	8.3 yrs	104		62		42		104		54		50
Provider contracts	14.6 yrs	51		27		24		51		24		27
Noncompetes and other	8.2 yrs	32		28		4		32		26		6
Total other intangible assets	9.8 yrs	$	753	$	437	$	316	$	753	$	396	$	357

Amortization expense for other intangible assets was approximately $20 million for the three months ended June 30, 2016 and $24 million for the three months ended June 30, 2015. For the six months ended June 30, 2016 and 2015, amortization expense for other intangible assets was approximately $41 million and $50 million, respectively. The following table presents our estimate of amortization expense for 2016 and each of the five next succeeding years:



	(in millions)
For the years ending December 31,:
2016	$	78
2017	71
2018	62
2019	51
2020	47
2021	13

- 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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