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Supplemental Financial Information (Tables) | 3 Months Ended
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Mar. 31, 2024
Disclosure Text Block Supplement [Abstract] |
Summary of Allowance for Doubtful Accounts Activity | The following summarizes the activity for the first three months of 2024 related to the allowance for doubtful accounts as of March 31, 2024:
(in millions) |  |
Allowance for Doubtful Accounts: |  |
Balance at December 31, 2023 |  | $ | 241 |
Provisions/charges to income |  | 14 |
Amounts charged off and other adjustments |  | (8) |
Balance at March 31, 2024 |  | $ | 247 |
Schedule of Long-Term Investments | The components of long-term investments as of March 31, 2024 and December 31, 2023 are as follows:
(in millions) |  | March 31, 2024 |  | December 31, 2023
Long-term Investments: |  |  |  |
Equity securities |  | $ | 547 |  |  | $ | 555 |
Other |  | 271 |  |  | 244 |
Total |  | $ | 818 |  |  | $ | 799 |

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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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