XML 40 R28.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Credit Losses on Financial Instruments (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2024
Credit Loss [Abstract] |
Schedule of Financing Receivable, Allowance for Credit Loss | The following table presents the activity of our allowance for credit losses by accounts receivable portfolio for the three months ended March 31, 2024:
| Business |  | Mass Markets |  | Total
| (Dollars in millions)
As of December 31, 2023 | $ | 36 |  |  | 31 |  |  | 67 |
Provision for expected losses | 8 |  |  | 15 |  |  | 23 |
Write-offs charged against the allowance | (10) |  |  | (17) |  |  | (27) |
Recoveries collected | 3 |  |  | 1 |  |  | 4 |
Ending balance at March 31, 2024 | $ | 37 |  |  | 30 |  |  | 67 |

X
- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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