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Goodwill and Intangible Assets, Net (Tables)
12 Months Ended
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of goodwill
The following table presents the changes in the carrying amounts of goodwill, for the periods presented. All goodwill is recorded in the Health Plans segment.
(In millions)
Balance, December 31, 2018
$143 
Acquisitions— 
Dispositions— 
Impairment and other— 
Balance, December 31, 2019
143 
Acquisitions549 
Dispositions— 
Impairment and other— 
Balance, December 31, 2020
$692 
Summary of identified intangible assets, by major class
The following table provides the details of identified intangible assets, by major class, for the periods presented. All intangible assets, net, are recorded in the Health Plans segment.
December 31, 2020December 31, 2019
CostAccumulated
Amortization
Carrying Amount CostAccumulated
Amortization
Carrying Amount
 (In millions)
Contract rights and licenses$370 $168 $202 $179 $156 $23 
Provider networks47 15 32 20 14 
Trade name 15 — 15 — — — 
Total$432 $183 $249 $199 $170 $29