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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Useful lives of Company's assets | Property, equipment and right-of-use assets consisted of the following at December 31:
|  | 2024 |  | 2023
|  | (in millions)
Buildings, building equipment and land |  | $ | 709 |  |  | $ | 678 |
Equipment |  | 2,118 |  |  | 1,940 |
Furniture and fixtures |  | 101 |  |  | 90 |
Leasehold improvements |  | 436 |  |  | 398 |
Operating lease right-of-use assets |  | 1,167 |  |  | 1,192 |
Property, equipment and right-of-use assets |  | 4,531 |  |  | 4,298 |
Less: Accumulated depreciation and amortization |  | (2,393) |  |  | (2,237) |
Property, equipment and right-of-use assets, net |  | $ | 2,138 |  |  | $ | 2,061 |
The useful lives of the Company’s assets are as follows:
Asset Category |  | Estimated Useful Life
Buildings |  | 30 years
Building equipment |  | 10 - 15 years
Equipment and furniture and fixtures |  | 3 - 5 years
Leasehold improvements |  | Shorter of life of improvement or lease term
Right-of-use assets |  | Shorter of life of the asset or lease term

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
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