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Supplemental Financial Information (Tables) | 9 Months Ended
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Sep. 30, 2025
Disclosure Text Block Supplement [Abstract] |
Schedule of Activity of Allowance for Doubtful Accounts | The following summarizes the activity for the first nine months of 2025 related to the allowance for doubtful accounts as of September 30, 2025:
(in millions) |  |
Allowance for Doubtful Accounts: |  |
Balance at December 31, 2024 |  | $ | 247 |
Provisions/charges to income |  | 70 |
Amounts charged off and other deductions |  | (25) |
Balance at September 30, 2025 |  | $ | 292 |
Schedule of Components of Long-Term Investments | The components of long-term investments are as follows:
(in millions) |  | September 30, 2025 |  | December 31, 2024
Long-term Investments: |  |  |  |
Equity securities |  | $ | 633 |  |  | $ | 553 |
Other |  | 318 |  |  | 333 |
Total |  | $ | 951 |  |  | $ | 886 |

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- Definition Tabular disclosure of allowance for credit loss on accounts 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 + Details
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