Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Change in goodwill

Below is a summary of the changes in the carrying amount of goodwill by segment for the years ended December 31, 2020 and 2019:

In millions	Pharmacy Services		Retail/ LTC		Health Care Benefits		Total
Balance at December 31, 2018	$	23,388	$	10,806	$	44,484	$	78,678
Segment realignment	194		—		(194)		—
Purchase accounting adjustments	—		—		1,071		1,071
Other	(1)		1		—		—
Balance at December 31, 2019	23,581		10,807		45,361		79,749
Acquisitions	34		—		274		308
Divestiture of Workers’ Compensation business	—		—		(505)		(505)
Balance at December 31, 2020	$	23,615	$	10,807	$	45,130	$	79,552

Other intangible assets

The following table is a summary of the Company’s intangible assets as of December 31, 2020 and 2019:

In millions, except weighted average life	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Weighted Average Life (years)
2020
Trademarks (indefinite-lived)	$	10,498	$	—	$	10,498	N/A
Customer contracts/relationships and covenants not to compete	24,952		(8,923)		16,029		14.9
Technology	1,060		(739)		321		3.0
Provider networks	4,203		(440)		3,763		20.0
Value of Business Acquired	590		(119)		471		20.0
Other	320		(260)		60		7.7
Total	$	41,623	$	(10,481)	$	31,142	15.2
2019
Trademarks (indefinite-lived)	$	10,498	$	—	$	10,498	N/A
Customer contracts/relationships and covenants not to compete	25,447		(8,128)		17,319		14.8
Technology	1,060		(386)		674		3.0
Provider networks	4,200		(229)		3,971		20.0
Value of Business Acquired	590		(63)		527		20.0
Other	364		(232)		132		8.1
Total	$	42,159	$	(9,038)	$	33,121	15.1

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

The projected annual amortization expense for the Company’s intangible assets for the next five years is as follows:

In millions
2021	$	2,249
2022	1,842
2023	1,812
2024	1,770
2025	1,718