Share-Based Payments - Weighted Average Assumptions Used to Determine Fair Value of Options Granted (Details) - Stock Options	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)	6 years 7 months 6 days	6 years 4 months 24 days
Risk-free interest rate	3.50%	3.10%
Volatility factor	44.40%	43.80%
Dividend yield	0.00%	0.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

MATTEL INC /DE/ 10-K