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New Accounting Pronouncements | 3 Months Ended
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Mar. 31, 2025
Accounting Standards Update and Change in Accounting Principle [Abstract] |
New Accounting Pronouncements | New Accounting Pronouncements Accounting Pronouncements Not Yet Adopted In December 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. ASU 2023-09 requires enhanced income tax disclosures on an annual basis for specific categories in the rate reconciliation and disclosure of income taxes paid by jurisdiction. The guidance in ASU 2023-09 is effective for fiscal years beginning after December 15, 2024. Mattel is currently evaluating the impact of the adoption of ASU 2023-09 on its consolidated financial statements. In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses for public business entities. ASU 2024-03 requires enhanced disclosures of each expense caption in the income statement to improve transparency and provide financial statement users with more detailed information about the nature, amount and timing of expenses impacting financial performance. The guidance in ASU 2024-03 is effective for fiscal years beginning after December 15, 2026, and interim periods within fiscal years beginning after December 15, 2027. Mattel is currently evaluating the impact of the adoption of ASU 2024-03 on its consolidated financial statements.

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- Definition The entire disclosure for change in accounting principle. 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