Consolidated Statements of Equity - USD ($) $ in Thousands	Simon Property Group, L.P. Simon (Managing General Partner)	Simon Property Group, L.P. Limited Partners	Simon Property Group, L.P. Preferred Stock	Simon Property Group, L.P. Noncontrolling Interests	Simon Property Group, L.P.	Preferred Stock Series J Preferred stock	Common Stock.	Accumulated Other Comprehensive Income (Loss)	Capital in Excess of Par Value	Accumulated Deficit	Common Stock Held in Treasury	Noncontrolling Interests	Total
Balance at Dec. 31, 2019						$ 42,420	$ 32	$ (118,604)	$ 9,756,073	$ (5,379,952)	$ (1,773,571)	$ 384,852	$ 2,911,250
Balance at Dec. 31, 2019	$ 2,483,978	$ 378,339	$ 42,420	$ 6,513	$ 2,911,250
Increase (Decrease) in Stockholders' Equity
Exchange of limited partner units									2,028			(2,028)
Issuance of limited partner units		79,601			79,601							79,601	79,601
Public offering of common stock							2		1,556,477				1,556,479
Series J preferred stock premium amortization			(329)		(329)	(329)							(329)
Limited partner units exchanged to common units	2,028	(2,028)
Issuance of units related to Simon's public offering of its common stock	1,556,479				1,556,479
Stock incentive program									(35,662)		35,662
Redemption of limited partner units	(15,163)	(943)			(16,106)				(15,163)			(943)	(16,106)
Amortization of stock incentive	11,660				11,660				11,660				11,660
Treasury stock purchase											(152,590)		(152,590)
Treasury unit purchase	(152,590)				(152,590)
Long-term incentive performance units		2,331			2,331							2,331	2,331
Issuance of unit equivalents and other	34,071			(3,582)	30,489				30	34,894	(853)	(3,582)	30,489
Unrealized gain on hedging activities	(92,834)	(13,714)			(106,548)			(92,834)				(13,714)	(106,548)
Currency translation adjustments	22,694	4,594			27,288			22,694				4,594	27,288
Changes in available-for-sale securities and other	162	18			180			162				18	180
Net gain reclassified from accumulated other comprehensive loss into earnings	(93)	(13)			(106)			(93)				(13)	(106)
Other comprehensive income	(70,071)	(9,115)			(79,186)			(70,071)				(9,115)	(79,186)
Adjustment to limited partners' interest from change in ownership in the Operating Partnership	(95,755)	95,755							(95,755)			95,755
Distributions to common stockholders and limited partners, excluding Operating Partnership preferred interests										(1,869,820)		(279,379)	(2,149,199)
Distributions to other noncontrolling interest partners												(3,507)	(3,507)
Distributions, excluding distributions on preferred interests classified as temporary equity	(1,866,483)	(279,379)	(3,337)	(3,507)	(2,152,706)
Net income, excluding preferred distributions on temporary equity preferred units and amounts attributable to noncontrolling redeemable interests in properties	1,109,227	167,223	3,337	1,666	1,281,453
Net income, excluding attributable to preferred interests in the Operating Partnership and a loss attributable to noncontrolling redeemable interests in properties										1,112,564		168,889	1,281,453
Balance at Dec. 31, 2020						42,091	34	(188,675)	11,179,688	(6,102,314)	(1,891,352)	432,874	3,472,346
Balance at Dec. 31, 2020	2,997,381	431,784	42,091	1,090	3,472,346
Increase (Decrease) in Stockholders' Equity
Exchange of limited partner units									539			(539)
Series J preferred stock premium amortization			(328)		(328)	(328)							(328)
Limited partner units exchanged to common units	539	(539)
Stock incentive program									(9,229)		9,229
Redemption of limited partner units	(2,061)	(159)			(2,220)				(2,061)			(159)	(2,220)
Amortization of stock incentive	19,673				19,673				19,673				19,673
Long-term incentive performance units		17,755			17,755							17,755	17,755
Issuance of unit equivalents and other	(40,877)	1		18,493	(22,383)				5,760	(44,319)	(2,318)	18,494	(22,383)
Unrealized gain on hedging activities	44,676	6,438			51,114			44,676				6,438	51,114
Currency translation adjustments	(33,932)	(4,840)			(38,772)			(33,932)				(4,840)	(38,772)
Changes in available-for-sale securities and other	(886)	(128)			(1,014)			(886)				(128)	(1,014)
Net gain reclassified from accumulated other comprehensive loss into earnings	(6,369)	(916)			(7,285)			(6,369)				(916)	(7,285)
Other comprehensive income	3,489	554			4,043			3,489				554	4,043
Adjustment to limited partners' interest from change in ownership in the Operating Partnership	18,620	(18,620)							18,620			(18,620)
Distributions to common stockholders and limited partners, excluding Operating Partnership preferred interests										(1,926,706)		(276,698)	(2,203,404)
Distributions to other noncontrolling interest partners												(2,708)	(2,708)
Distributions, excluding distributions on preferred interests classified as temporary equity	(1,923,369)	(276,698)	(3,337)	(2,708)	(2,206,112)
Net income, excluding preferred distributions on temporary equity preferred units and amounts attributable to noncontrolling redeemable interests in properties	2,246,294	323,214	3,337	(2,634)	2,570,211
Net income, excluding attributable to preferred interests in the Operating Partnership and a loss attributable to noncontrolling redeemable interests in properties										2,249,631		320,580	2,570,211
Balance at Dec. 31, 2021						41,763	34	(185,186)	11,212,990	(5,823,708)	(1,884,441)	491,533	3,852,985
Balance at Dec. 31, 2021	3,319,689	477,292	41,763	14,241	3,852,985
Increase (Decrease) in Stockholders' Equity
Exchange of limited partner units									27			(27)
Series J preferred stock premium amortization			(328)		(328)	(328)							(328)
Limited partner units exchanged to common units	27	(27)
Stock incentive program									(27,637)		27,637
Redemption of limited partner units	(1,708)	(144)			(1,852)				(1,708)			(144)	(1,852)
Amortization of stock incentive	23,670				23,670				23,670				23,670
Treasury stock purchase											(180,387)		(180,387)
Treasury unit purchase	(180,387)				(180,387)
Long-term incentive performance units		14,845			14,845							14,845	14,845
Issuance of unit equivalents and other	11,649	(1)		10,601	22,249				(2,769)	21,206	(6,788)	10,600	22,249
Unrealized gain on hedging activities	47,888	6,920			54,808			47,888				6,920	54,808
Currency translation adjustments	(24,427)	(3,692)			(28,119)			(24,427)				(3,692)	(28,119)
Changes in available-for-sale securities and other	(1,755)	(254)			(2,009)			(1,755)				(254)	(2,009)
Net gain reclassified from accumulated other comprehensive loss into earnings	(1,393)	(202)			(1,595)			(1,393)				(202)	(1,595)
Other comprehensive income	20,313	2,772			23,085			20,313				2,772	23,085
Adjustment to limited partners' interest from change in ownership in the Operating Partnership	28,308	(28,308)							28,308			(28,308)
Distributions to common stockholders and limited partners, excluding Operating Partnership preferred interests										(2,264,007)		(326,550)	(2,590,557)
Distributions to other noncontrolling interest partners												(1,362)	(1,362)
Distributions, excluding distributions on preferred interests classified as temporary equity	(2,260,670)	(326,550)	(3,337)	(1,362)	(2,591,919)
Net income, excluding preferred distributions on temporary equity preferred units and amounts attributable to noncontrolling redeemable interests in properties	2,136,198	308,197	3,337	1,572	2,449,304
Net income, excluding attributable to preferred interests in the Operating Partnership and a loss attributable to noncontrolling redeemable interests in properties										2,139,535		309,769	2,449,304
Balance at Dec. 31, 2022						$ 41,435	$ 34	$ (164,873)	$ 11,232,881	$ (5,926,974)	$ (2,043,979)	$ 473,128	$ 3,611,652
Balance at Dec. 31, 2022	$ 3,097,089	$ 448,076	$ 41,435	$ 25,052	$ 3,611,652