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Goodwill and Intangible Assets, Net - Intangible Assets Balances (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 501 | $ 432
Accumulated Amortization | 231 | 183
Carrying Amount | 270 | 249
Contract rights and licenses |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 426 | 370
Accumulated Amortization | 210 | 168
Carrying Amount | 216 | 202
Provider networks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 56 | 47
Accumulated Amortization | 19 | 15
Carrying Amount | 37 | 32
Trade name |  |
Finite-Lived Intangible Assets [Line Items] |  |
Cost | 19 | 15
Accumulated Amortization | 2 | 0
Carrying Amount | $ 17 | $ 15

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- 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 http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition 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 -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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