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Significant Accounting Policies - Narrative (Details) people in Millions, patient in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jan. 31, 2023 state | Jun. 30, 2022 USD ($) people state clinic store patient | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) people state clinic Segment store patient | Jun. 30, 2021 USD ($)
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of pharmacy plan members | people |  | 110 |  | 110 |
Number of patients served per year | patient |  | 1 |  | 1 |
Number of reportable segments | Segment |  |  |  | 4 |
Expenses from transactions with related party | $ |  | $ 16 | $ 10 | $ 31 | $ 19
Other revenues from transactions with related party | $ |  | $ 23 | $ 19 | $ 44 | $ 37
Heartland Healthcare Services |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of states in which entity operates |  | 4 |  | 4 |
Retail/ LTC |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of retail locations (more than) | store |  | 9,000 |  | 9,000 |
Number of walk in medical clinics | clinic |  | 1,100 |  | 1,100 |
Health Care Benefits |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Number of people served | people |  | 35 |  | 35 |
Number of states in which the Company has entered the individual public health insurance exchange |  |  |  | 8 |
Health Care Benefits | Forecast |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Additional number of states in which the Company has entered the individual public health insurance exchange | 4 |  |  |  |

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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 https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599 + Details
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