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Acquisitions and Divestitures - Intangible Allocation (Detail) - USD ($) $ in Millions | Nov. 04, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Stericycle [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets | $ 3,536 |  |  |
Stericycle [Member] | Trade Names [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets | 630 |  |  |
Stericycle [Member] | Customer Relationships [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets | $ 2,279 |  |  |
Weighted average amortization periods | 15 years |  |  |
Stericycle [Member] | Permits [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets | $ 319 |  |  |
Stericycle [Member] | Trade Names [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets | $ 162 |  |  |
Weighted average amortization periods | 2 years 2 months 12 days |  |  |
Stericycle [Member] | ERP software [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets | $ 141 |  |  |
Weighted average amortization periods | 4 years 8 months 12 days |  |  |
Stericycle [Member] | Developed technology [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets | $ 5 |  |  |
Weighted average amortization periods | 17 years |  |  |
Aggregate smaller acquisitions [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets |  | $ 79 | $ 44 | $ 64
Aggregate smaller acquisitions [Member] | Customer Relationships [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets |  | 63 | 34 | 45
Aggregate smaller acquisitions [Member] | Noncompete Agreements [Member] |  |  |  |
Intangible assets |  |  |  |
Other intangible assets |  | $ 14 | $ 10 | $ 19

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