XBRL Cloud: Business Report

Rendering

Component: (Network and Table)
Network	2305301 - Disclosure - Goodwill and Other Acquired Intangible Assets (Tables) (http://www.aetna.com/role/GoodwillAndOtherAcquiredIntangibleAssetsTables)
Table	(Implied)

Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001122304 (http://www.sec.gov/CIK)

Goodwill and Intangible Assets Disclosure [Abstract]

Period [Axis]

2016-01-01 - 2016-12-31

Goodwill and Intangible Assets Disclosure [Abstract]

Change in Goodwill

The change in the carrying amount of goodwill for our reportable segments for the years ended December 31, 2016 and 2015 was as follows:



(Millions)	Health Care		Group Insurance		Total Company
Balance at January 1, 2015	$	10,500	$	113	$	10,613
Acquisitions	12		—		12
Dispositions	—		—		—
Subsequent adjustments	12		—		12
Balance at December 31, 2015	10,524		113		10,637
Acquisitions	—		—		—
Dispositions	—		—		—
Subsequent adjustments	—		—		—
Balance at December 31, 2016	$	10,524	$	113	$	10,637

Other acquired intangible assets

Other acquired intangible assets at December 31, 2016 and 2015 were comprised of the following:



(Millions)	Cost		Accumulated Amortization		Net Balance		Amortization Period (Years)
2016
Provider networks	$	1,254	$	694	$	560	12-25	⁽¹⁾
Customer lists	1,166		485		681		3-14	⁽¹⁾
Value of business acquired	149		92		57		20
Technology	176		123		53		4-10
Other	10		4		6		10-15
Definite-lived trademarks	170		107		63		5-20
Indefinite-lived trademarks	22		—		22
Total other acquired intangible assets	$	2,947	$	1,505	$	1,442
2015
Provider networks	$	1,254	$	632	$	622	12-25	⁽¹⁾
Customer lists	1,165		374		791		5-14	⁽¹⁾
Value of business acquired	149		80		69		20
Technology	176		93		83		4-10
Other	10		3		7		2-15
Definite-lived trademarks	170		76		94		5-20
Indefinite-lived trademarks	22		—		22
Total other acquired intangible assets	$	2,946	$	1,258	$	1,688

⁽¹⁾

The amortization period for our provider networks and customer lists includes an assumption of renewal or extension of these arrangements. At both December 31, 2016 and 2015, the periods prior to the next renewal or extension for our provider networks primarily ranged from 1 to 3 years, and the period prior to the next renewal or extension for our customer lists was 1 year. Any costs related to the renewal or extension of these contracts are expensed as incurred.

Estimated annual pretax amortization for other acquired intangible assets over the next five years

We estimate annual pre-tax amortization for other acquired intangible assets over the next five years to be as follows:



(Millions)
2017	$	234
2018	198
2019	192
2020	180
2021	156