v3.25.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2024
Accounting Policies [Abstract]  
Schedule of Range of Useful Lives
The range of useful lives approximate the following (in years):

Customer relationships
1 to 30
Patents and trademarks
5 to 40
Monitoring lines
7 to 10
Service portfolio and other
1 to 50
Identifiable intangible assets consisted of the following:

20242023
(In millions)Gross AmountAccumulated AmortizationNet AmountGross AmountAccumulated AmortizationNet Amount
Customer relationships$5,607 $(939)$4,668 $1,056 $(445)$611 
Patents and trademarks885 (147)738 255 (96)159 
Service portfolios and other1,530 (504)1,026 431 (256)175 
Total intangible assets (1)
$8,022 $(1,590)$6,432 $1,742 $(797)$945 
(1) Indefinite-lived intangible assets were sold as part of the CRF Business divestiture.