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v3.25.2

GUARANTEES (Details) $ in Millions | Jun. 29, 2025 USD ($)
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Guarantees and Product Warranties [Abstract] |
Guarantor obligations, repayments of debt | $ 61

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- Definition Guarantor Obligations, Repayments Of Debt + References No definition available. + Details
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Namespace Prefix: | smf_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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