v3.25.4
Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Summary of Major Classes of Property and Equipment
Property and equipment are stated at cost and are depreciated using the straight-line method over the shorter of the asset’s estimated useful life or the lease term, if related to leased property, as follows:

Buildings and leasehold improvements3-40 years
Equipment3-10 years
Furniture and fixtures5-10 years
Transportation equipment3-20 years
The major classes of property and equipment were as follows:
December 31,
(in millions)20252024
Land, buildings and leasehold improvements$385 $367 
Equipment903 840 
Transportation equipment88 85 
Furniture and fixtures62 62 
Property and equipment, gross1,438 1,354 
Less accumulated depreciation(905)(819)
Property and equipment, net$533 $535 
Definite-Lived Identifiable Intangible Assets Amortized
Definite-lived other identifiable intangible assets are amortized primarily using an accelerated method that reflects the pattern in which the Company expects to benefit from the use of the asset over its estimated remaining useful life as follows:

Client relationships and backlog1-25 years
Software and related assets1-10 years
Trademarks, trade names and other1-17 years
Databases1-9 years
Non-compete agreements2-5 years
The following is a summary of other identifiable intangible assets:
December 31, 2025December 31, 2024
(in millions)Gross AmountAccumulated AmortizationNet AmountGross AmountAccumulated AmortizationNet Amount
Definite-lived identifiable intangible assets:
Client relationships and backlog$6,653 $(3,566)$3,087 $5,690 $(2,966)$2,724 
Software and related assets4,466 (2,782)1,684 3,914 (2,358)1,556 
Trademarks, trade names and other570 (406)164 539 (350)189 
Databases1,892 (1,873)19 1,773 (1,751)22 
Non-compete agreements11 (3)8 14 (6)
$13,592 $(8,630)$4,962 $11,930 $(7,431)$4,499