GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Goodwill By Reportable Segments

Changes in the carrying amount of goodwill for our reportable segments for the years ended December 31, 2020 and 2019 were as follows:

	Retail		Group and Specialty		Healthcare Services		Total
	(in millions)
Balance at January 1, 2019	$	1,535	$	261	$	2,101	$	3,897
Acquisitions	—		—		31		31
Balance at December 31, 2019	1,535		261		2,132		3,928
Acquisitions	—		—		519		519
Balance at December 31, 2020	$	1,535	$	261	$	2,651	$	4,447

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 consolidated balance sheets at December 31, 2020 and 2019.

	Weighted Average Life	2020						2019
		Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
		(in millions)
Other intangible assets:
Customer contracts/relationships	9.5 years	$	849	$	572	$	277	$	646	$	496	$	150
Trade names and technology	7.0 years	122		89		33		84		84		—
Provider contracts	11.8 years	69		50		19		70		44		26
Noncompetes and other	7.3 years	29		29		—		29		28		1
Total other intangible assets	9.3 years	$	1,069	$	740	$	329	$	829	$	652	$	177

Schedule of Estimate of Amortization Expense

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,
2021	$	56
2022	53
2023	40
2024	33
2025	33