XML 39 R28.htm IDEA: XBRL DOCUMENT v3.25.2
Supplemental Financial Information (Tables)
6 Months Ended
Jun. 30, 2025
Disclosure Text Block Supplement [Abstract]  
Schedule of Activity of Allowance for Doubtful Accounts
The following summarizes the activity for the first six months of 2025 related to the allowance for doubtful accounts as of June 30, 2025:

(in millions)
Allowance for Doubtful Accounts:
Balance at December 31, 2024$247 
Provisions/charges to income52 
Amounts charged off and other deductions(19)
Balance at June 30, 2025$280 
Schedule of Components of Long-Term Investments
The components of long-term investments are as follows:

(in millions)June 30,
2025
December 31,
2024
Long-term Investments:
Equity securities$619 $553 
Other339 333 
Total$958 $886