Description of the Plan - Payment of Benefits (Details) - SIMON PROPERTY GROUP AND ADOPTING ENTITIES MATCHING SAVINGS PLAN	Dec. 31, 2025 USD ($)
Description of the Plan
Minimum vested balance to receive lump sum or installment payments	$ 5,000
Maximum vested balance for single lump sum payment	$ 5,000

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.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478416/962-205-50-1

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