GOODWILL AND OTHER INTANGIBLE ASSETS

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND OTHER INTANGIBLE ASSETS

GOODWILL AND OTHER INTANGIBLE ASSETS

Changes in the carrying amount of goodwill for our reportable segments for the years ended December 31, 2019 and 2018 were as follows:

	Retail		Group and Specialty		Healthcare Services		Total
	(in millions)
Balance at January 1, 2018	$	1,059	$	261	$	1,961	$	3,281
Acquisitions	476		—		140		616
Balance at December 31, 2018	1,535		261		2,101		3,897
Acquisitions	—		—		31		31
Balance at December 31, 2019	$	1,535	$	261	$	2,132	$	3,928

The following table presents details of our other intangible assets included in other long-term assets in the accompanying consolidated balance sheets at December 31, 2019 and 2018.

	Weighted Average Life	2019						2018
		Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
		(in millions)
Other intangible assets:
Customer contracts/relationships	8.7 years	$	646	$	496	$	150	$	646	$	434	$	212
Trade names and technology	6.4 years	84		84		—		84		83		1
Provider contracts	11.8 years	70		44		26		68		37		31
Noncompetes and other	7.3 years	29		28		1		29		28		1
Total other intangible assets	8.7 years	$	829	$	652	$	177	$	827	$	582	$	245

Amortization expense for other intangible assets was approximately $70 million in 2019, $90 million in 2018, and $75 million in 2017. Amortization expense for 2018 included $12 million associated with the write-off of a trade name value reflecting the re-branding of certain provider assets.

The following table presents our estimate of amortization expense for each of the five next succeeding fiscal years:

	(in millions)
For the years ending December 31,
2020	$	68
2021	34
2022	31
2023	18
2024	11