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Acquisitions and Divestitures - Divestitures (Details) - USD ($) shares in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 | Jul. 31, 2022 | Sep. 30, 2022 | Sep. 30, 2022
Business Acquisition [Line Items] |  |  |  |
Value of common shares |  |  | $ 1,988 | $ 1,988
NEOGEN Corporation |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Ownership interest (as a percent) | 50.10% |  | 50.10% | 50.10%
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Health Care |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Ownership interest after spinoff (as a percent) |  | 19.90% |  |
Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations | Food Safety Division |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Pre-tax gain on divestitures | $ 2,700 |  |  |
Aggregate consideration | 2,800 |  | $ 2,800 | $ 2,800
Value of shares exchanged | 1,000 |  | 1,000 | 1,000
Value of shares exchanged, net of adjustments | $ 828 |  | $ 828 | $ 828
Reduction of outstanding shares | 16 |  | 16 | 16
Value of common shares | $ 2,000 |  |  |
Special cash payment received | 478 |  | $ 478 | $ 478
Value of noncash debt exchange | $ 350 |  | $ 350 | $ 350

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