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v3.23.3

Acquisitions and Assets Held for Sale - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |  |  |  | 1 Months Ended | 3 Months Ended | 5 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 02, 2023 | May 01, 2023 | Feb. 21, 2023 | Feb. 28, 2023 | Sep. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | May 02, 2023 | Mar. 29, 2023
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from debt | $ 4,900 | $ 5,000 | $ 6,000 | $ 6,000 |  |  |  |  |  |  |  |  |  |
Amortization of intangible assets |  |  |  |  | $ 509 |  | $ 458 |  |  | $ 1,396 | $ 1,380 |  |  |
Loss on assets held for sale |  |  |  |  | $ 0 |  | $ 2,480 |  |  | 349 | $ 2,521 |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Omnicare Long-Term Care Business | Pharmacy & Consumer Wellness |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on assets held for sale |  |  |  |  |  | $ 349 |  |  |  |  |  | $ 2,500 |  |
Oak Street Health Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |
Cash to be received by shareholders in proposed acquisition (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  | $ 39.00 |
Deferred income taxes |  |  |  |  |  |  |  |  |  |  |  |  | $ 773 |
Revenues since acquisition date |  |  |  |  |  |  |  | $ 1,300 |  |  |  |  |  |
Operating losses since acquisition date |  |  |  |  |  |  |  | 304 |  |  |  |  |  |
Amortization of intangible assets |  |  |  |  |  |  |  | 121 |  |  |  |  |  |
Stock-based compensation |  |  |  |  |  |  |  | $ 51 |  |  |  |  |  |
Transaction costs |  |  |  |  |  |  |  |  |  | 77 |  |  |  |
Signify Health, Inc. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of voting interests acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%
Cash to be received by shareholders in proposed acquisition (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 30.50
Deferred income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 272
Revenues since acquisition date |  |  |  |  |  |  |  |  | $ 528 |  |  |  |  |
Transaction costs |  |  |  |  |  |  |  |  |  | $ 37 |  |  |  |
Goodwill deductible for income tax purposes |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,700

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