Number of members eligible for the health care programs.

No definition available.

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- Definition

Health Plan, Contract Term

+ References

No definition available.

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599

+ Details

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- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3213-108585

+ Details

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Balance Type:	credit
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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Balance Type:
Period Type:

- Details

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Organization and Basis of Presentation (Details) member in Millions, $ in Millions	1 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) state member	Apr. 30, 2020 USD ($)	Sep. 30, 2020 USD ($) state segment member	Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment			2
Net cash paid in business combinations			$ 62	$ 0
Affinity health plan
Segment Reporting Information [Line Items]
Net cash paid in business combinations	$ 380
Magellan complete care
Segment Reporting Information [Line Items]
Net cash paid in business combinations		$ 820
Health Plans
Segment Reporting Information [Line Items]
Number of states in which entity operates \| state	15		15
Number of members eligible for the health care programs, approximately \| member	4.0		4.0
Minimum \| Health Plans
Segment Reporting Information [Line Items]
Contract term			3 years
Maximum \| Health Plans
Segment Reporting Information [Line Items]
Contract term			5 years