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Goodwill and Other Intangible Assets (Narrative) (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 USD ($) | Sep. 27, 2024 USD ($) | Dec. 31, 2024 USD ($) reportingUnit | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Goodwill [Line Items] |  |  |  |  |
Reporting units | reportingUnit |  |  | 5 |  |
Goodwill | $ 40,497,000,000 |  | $ 40,497,000,000 | $ 41,608,000,000 | $ 37,276,000,000
Impairment loss |  |  | $ 0 | 0 | 0
Finite-lived intangible assets, weighted-average life (in years) |  |  | 11 years |  |
Impairment charges |  |  | $ 265,000,000 | 77,000,000 | 0
Amortization of intangible assets |  |  | 1,631,000,000 | $ 1,491,000,000 | $ 1,434,000,000
Estimated amortization expense, 2025 | 1,600,000,000 |  | 1,600,000,000 |  |
Estimated amortization expense, 2026 | 1,600,000,000 |  | 1,600,000,000 |  |
Estimated amortization expense, 2027 | 1,500,000,000 |  | 1,500,000,000 |  |
Estimated amortization expense, 2028 | 1,500,000,000 |  | 1,500,000,000 |  |
Estimated amortization expense, 2029 | 1,400,000,000 |  | 1,400,000,000 |  |
Life Sciences | Genomics |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Impairment loss |  | $ 0 |  |  |
Impairment charges |  | 0 |  |  |
Life Sciences | Trade Names |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Impairment charges |  |  | 222,000,000 |  |
Impairment charges, after tax |  |  | 169,000,000 |  |
Indefinite-lived intangibles, gross carrying amount |  | $ 508,000,000 |  |  |
Diagnostics | Trade Names |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Impairment charges | 43,000,000 |  |  |  |
Minimum |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill | 1,200,000,000 |  | 1,200,000,000 |  |
Maximum |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |
Goodwill | $ 22,500,000,000 |  | $ 22,500,000,000 |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 985 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481283/985-20-50-2 + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 + Details
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