GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Goodwill By Reportable Segments

The carrying amount of goodwill for our reportable segments was unchanged from December 31, 2018 to March 31, 2019. The carrying amount at March 31, 2019 was as follows:

	Retail		Group and Specialty		Healthcare Services		Total
	(in millions)
Balance at March 31, 2019	$	1,535	$	261	$	2,101	$	3,897

Schedule of Intangible Assets Included in Other Long-Term Assets

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

		March 31, 2019						December 31, 2018
	Weighted Average Life	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
		($ in millions)
Other intangible assets:
Customer contracts/ relationships	8.7 years	$	646	$	450	$	196	$	646	$	434	$	212
Trade names and technology	6.4 years	84		84		—		84		83		1
Provider contracts	11.7 years	70		39		31		68		37		31
Noncompetes and other	7.3 years	29		28		1		29		28		1
Total other intangible assets	8.7 years	$	829	$	601	$	228	$	827	$	582	$	245

Schedule of Estimated Amortization Expense

The following table presents our estimate of amortization expense for 2019 and each of the five next succeeding years:

	(in millions)
For the years ending December 31,
2019	$	70
2020	67
2021	34
2022	31
2023	18
2024	11