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Additional Financial Information - Income Statement Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Depreciation expense | $ 14,937 | $ 14,592 | $ 14,119
Interest costs on debt balances | 7,123 | 5,429 | 5,148
Net amortization of debt discount | 219 | 214 | 178
Capitalized interest costs | (1,818) | (2,030) | (1,841)
Advertising expense | 3,847 | 3,556 | 3,394
Other income (expense), net |  |  |
Interest income | 354 | 146 | 48
Other components of net periodic benefit (cost) income | (938) | 2,386 | 3,785
Net debt extinguishment gains (losses) | 308 | (1,077) | (3,541)
Other, net | (37) | (82) | 20
Other income (expense), net | $ (313) | $ 1,373 | $ 312

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 720 -SubTopic 35 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483406/720-35-50-1 + Details
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