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Additional Financial Information
 12 Months Ended
Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Additional Financial Information
NOTE 23. ADDITIONAL FINANCIAL INFORMATION

December 31,
Consolidated Balance Sheets20242023
Accounts payable and accrued liabilities:
Accounts payable$27,433 $27,309 
Accrued payroll and commissions2,015 1,698 
Current portion of employee benefit obligation570 631 
Accrued interest2,020 2,187 
Accrued taxes1,301 1,022 
Other2,318 3,005 
Total accounts payable and accrued liabilities$35,657 $35,852 

Consolidated Statements of Income202420232022
Advertising expense$2,505 $2,576 $2,462 
Interest income
$212 $303 $143 
Interest expense incurred$7,120 $7,578 $7,402 
Capitalized interest – capital expenditures(162)(179)(174)
Capitalized interest – spectrum1
(199)(695)(1,120)
Total interest expense$6,759 $6,704 $6,108 
1Included in “Acquisitions, net of cash acquired” in our consolidated statements of cash flows.

Cash and Cash Flows We typically maintain our restricted cash balances for purchases and sales of certain investment securities and funding of certain deferred compensation benefit payments.

The following table summarizes cash and cash equivalents and restricted cash balances contained on our consolidated balance sheets:
December 31,
Cash and Cash Equivalents and Restricted Cash2024202320222021
Cash and cash equivalents from continuing operations$3,298 $6,722 $3,701 $19,223 
Cash and cash equivalents from discontinued operations— — — 1,946 
Restricted cash in Prepaid and other current assets1 2 1 3 
Restricted cash in Other Assets107 109 91 144 
Cash and cash equivalents and restricted cash$3,406 $6,833 $3,793 $21,316 
The following tables summarize certain cash flow activities from continuing operations:
Consolidated Statements of Cash Flows202420232022
Cash paid (received) during the year for:
Interest$7,132 $7,370 $7,772 
Income taxes, net of refunds1
2,456 1,599 592 
1Total cash income taxes paid, net of refunds, by AT&T was $2,456, $1,599 and $696 for 2024, 2023 and 2022, respectively.
Purchase of property and equipment$20,101 $17,674 $19,452 
Interest during construction - capital expenditures1
162 179 174 
Total Capital expenditures$20,263 $17,853 $19,626 
Business acquisitions$— $— $— 
Spectrum acquisitions
181 2,247 9,080 
Interest during construction - spectrum1
199 695 1,120 
Total Acquisitions, net of cash acquired$380 $2,942 $10,200 
1Total capitalized interest was $361, $874 and $1,294 for 2024, 2023 and 2022, respectively.

Labor Contracts As of December 31, 2024, we employed approximately 140,990 persons. Approximately 43% of our employees are represented by the Communications Workers of America (CWA), the International Brotherhood of Electrical Workers (IBEW) or other unions. After expiration of collective bargaining agreements, work stoppages or labor disruptions may occur in the absence of new contracts or other agreements being reached. The main contract set to expire in 2025 covers approximately 9,000 employees in Arkansas, Kansas, Missouri, Oklahoma and Texas and is set to expire in April.