XML 20 R12.htm IDEA: XBRL DOCUMENT
v3.24.3

Goodwill and Other Intangibles | 9 Months Ended
--- | ---
Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangibles | 3. Goodwill and Other Intangibles The following table shows the changes in goodwill by reportable segment and in total:
|  | East |  |  | West |  |  |  |
|  | Group |  |  | Group |  |  | Total |
|  | (Dollars in Millions) |
Balance at January 1, 2024 |  | $ | 764 |  |  | $ | 2,625 |  |  | $ | 3,389 |
Acquisitions |  |  | 268 |  |  |  | 111 |  |  |  | 379 |
Balance at September 30, 2024 |  | $ | 1,032 |  |  | $ | 2,736 |  |  | $ | 3,768 |
Intangible assets acquired during 2024 are as follows:
(Dollars in Millions) |  | Amount |  |  | Weighted-average amortization period
Subject to amortization: |  |  |  |  |
Customer relationships |  | $ | 24 |  |  | 12 years
Not subject to amortization: |  |  |  |  |
Use rights |  |  | 5 |  |  | N/A
Total |  | $ | 29 |  |  |

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-20/tableOfContent + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration