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Goodwill and Intangible Assets, Net - Intangible Assets Balances (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Cost	$ 583	$ 501
Accumulated Amortization	308	231
Carrying Amount	275	270
Contract rights and licenses
Finite-Lived Intangible Assets [Line Items]
Cost	507	426
Accumulated Amortization	279	210
Carrying Amount	228	216
Provider networks
Finite-Lived Intangible Assets [Line Items]
Cost	57	56
Accumulated Amortization	24	19
Carrying Amount	33	37
Trade names
Finite-Lived Intangible Assets [Line Items]
Cost	19	19
Accumulated Amortization	5	2
Carrying Amount	$ 14	$ 17

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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