XML 88 R79.htm IDEA: XBRL DOCUMENT
v3.22.1

Contingencies (Details) $ in Millions | 1 Months Ended | 2 Months Ended | 3 Months Ended
--- | --- | --- | ---
Feb. 28, 2022 USD ($) | Jan. 31, 2020 stockholder | Mar. 31, 2022 lawsuit child class
Sleeper |  |  |
Loss Contingencies [Line Items] |  |  |
Number of additional lawsuits pending |  |  | 40
Number of children with injuries or fatalities related to lawsuits | child |  |  | 44
Whistleblower Letter |  |  |
Loss Contingencies [Line Items] |  |  |
Number of additional lawsuits pending |  |  | 7
Number of stockholders who filed complaints | stockholder |  | 2 |
Litigation settlement, amount awarded to other party | $ | $ 86 |  |
Minimum | Sleeper |  |  |
Loss Contingencies [Line Items] |  |  |
Number of consumer classes | class |  |  | 10

X
- Definition Loss Contingencies, Number Of Children With Injuries Related To Outstanding Lawsuits + References No definition available. + Details
Name: | mat_LossContingenciesNumberOfChildrenWithInjuriesRelatedToOutstandingLawsuits
Namespace Prefix: | mat_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Loss Contingency Additional Lawsuits Pending + References No definition available. + Details
Name: | mat_LossContingencyAdditionalLawsuitsPending
Namespace Prefix: | mat_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Consumer Classes + References No definition available. + Details
Name: | mat_NumberOfConsumerClasses
Namespace Prefix: | mat_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number Of Stockholders Who Filed Complaints + References No definition available. + Details
Name: | mat_NumberOfStockholdersWhoFiledComplaints
Namespace Prefix: | mat_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount awarded to other party in judgment or settlement of litigation. + References No definition available. + Details
Name: | us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_LitigationCaseAxis=mat_SleeperMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_LitigationCaseAxis=mat_WhistleblowerLetterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |