New Accounting Pronouncements	6 Months Ended
New Accounting Pronouncements	Jun. 30, 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 on a prospective basis, with the option to apply the standard retrospectively. 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. Additionally, in January 2025, the FASB issued ASU 2025-01 to clarify the effective date of ASU 2024-03. 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. Early adoption is permitted. The ASU may be applied either (1) prospectively to financial statements issued for reporting periods after the effective date of this ASU or (2) retrospectively to all prior periods presented in the financial statements. Mattel is currently evaluating the impact of the adoption of ASU 2024-03 on its consolidated financial statements.

The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.

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MATTEL INC /DE/ 10-Q