| Dec 31, 2010 | Dec 31, 2011 | Dec 31, 2012 | Dec 31, 2013 | Dec 31, 2014 | Dec 31, 2015 | Dec 31, 2016 | Dec 31, 2017 | Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Kimco Realty OP, LLC | - | - | - | - | - | - | - | - | - | - | - | - | - | 666 | 419 |
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| Net income | 162 | 182 | 280 | 241 | 436 | 900 | 386 | 440 | 498 | 414 | 1,003 | 850 | 115 | 666 | 419 |
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| Depreciation and amortization | - | - | - | - | - | - | - | - | - | - | - | - | - | 507 | 604 |
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| Impairment charges | - | - | - | - | - | - | - | - | - | - | - | - | - | 14 | 4 |
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| us-gaap_StraightLineRentAdjustments | - | - | - | - | - | - | - | - | - | - | - | - | - | -23 | -23 |
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| Amortization of above-market and below-market leases, net | - | - | - | - | - | - | - | - | - | - | - | - | - | -17 | -25 |
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| Amortization of deferred financing costs and fair value debt adjustments, net | - | - | - | - | - | - | - | - | - | - | - | - | - | -9 | -1 |
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| Early extinguishment of debt charges | -11 | - | - | - | - | - | -46 | -2 | -13 | - | -7 | - | -8 | - | - |
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| Equity award expense | - | - | - | - | - | - | - | - | - | - | - | - | - | 33 | 35 |
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| Gain on sale of properties | - | - | - | - | - | - | - | - | - | - | - | - | - | 75 | 1 |
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| Loss/(gain) on marketable securities, net | - | - | - | - | - | - | - | - | - | - | - | - | - | 21 | -28 |
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| Change in fair value of embedded derivative liability | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 0 |
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| Kimco Realty OP, LLC | - | - | - | - | - | - | - | - | - | - | - | - | - | 72 | 84 |
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| Equity in income, net | 56 | 64 | 113 | 209 | 160 | 480 | 219 | 61 | 72 | - | - | - | - | 11 | 84 |
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| Distributions from joint ventures and other investments | - | - | - | - | - | - | - | - | - | - | - | - | - | 76 | 98 |
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| Change in accounts and notes receivable, net | - | - | - | - | - | - | - | - | - | - | - | - | - | -18 | -6 |
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| Change in accounts payable and accrued expenses | - | - | - | - | - | - | - | - | - | - | - | - | - | 6 | -22 |
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| Change in other operating assets and liabilities, net | - | - | - | - | - | - | - | - | - | - | - | - | - | 20 | 22 |
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| Net cash flow provided by operating activities | - | - | - | - | - | - | - | - | - | - | - | - | - | 1,072 | 1,006 |
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| Acquisition of operating real estate and other related net assets | - | - | - | - | - | - | - | - | - | - | - | - | - | 277 | 153 |
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| Improvements to operating real estate | - | - | - | - | - | - | - | - | - | - | - | - | - | 264 | 324 |
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| Acquisition of RPT Realty | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 149 |
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| Acquisition of Weingarten Realty Investors, net of cash acquired | - | - | - | - | - | - | - | - | - | - | - | 264 | - | - | - |
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| Investment in marketable securities | - | - | - | - | - | - | - | - | - | - | - | - | - | 4 | 1 |
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| Proceeds from sale of marketable securities | - | - | - | - | - | - | - | - | - | - | - | - | - | 293 | 301 |
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| Investment in cost method investments | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 0 |
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| Kimco Realty OP, LLC | - | - | - | - | - | - | - | - | - | - | - | - | - | 24 | 4 |
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| Investments in and advances to real estate joint ventures | 139 | 172 | 220 | 297 | 94 | 92 | 86 | 35 | 36 | 28 | 16 | 13 | 87 | 24 | 4 |
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| Reimbursements of investments in and advances to real estate joint ventures | - | - | - | - | - | - | - | - | - | - | - | - | - | 14 | 27 |
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| Investments in and advances to other investments | - | - | - | - | - | - | - | - | - | - | - | - | - | 18 | 8 |
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| Reimbursements of investments in and advances to other investments | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 3 |
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| Investment in mortgage and other financing receivables | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 202 |
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| Investment in mortgage and other financing receivables | - | - | - | - | - | - | - | - | - | - | - | - | - | 19 | - |
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| Collection of mortgage and other financing receivables | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 108 |
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| Proceeds from sale of properties | - | - | - | - | - | - | - | - | - | - | - | - | - | 160 | 71 |
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| Proceeds from insurance casualty claims | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 8 |
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| Principal payments from securities held-to-maturity | - | - | - | - | - | - | - | - | - | - | - | - | - | -5 | -5 |
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| Net cash flow used for investing activities | - | - | - | - | - | - | - | - | - | - | - | - | - | -137 | -319 |
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| Principal payments on debt, excluding normal amortization of rental property debt | - | - | - | - | - | - | - | - | - | - | - | - | - | -49 | -12 |
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| Principal payments on rental property debt | - | - | - | - | - | - | - | - | - | - | - | - | - | 11 | 10 |
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| Proceeds from mortgage loan financings | - | 20 | 15 | 36 | 16 | - | - | 206 | 51 | 16 | - | - | 19 | - | - |
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| Proceeds from unsecured debt | - | - | - | - | - | - | - | - | - | - | - | - | - | 500 | 860 |
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| Repayments of unsecured notes | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1,158 |
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| Financing origination costs | - | - | - | - | - | - | - | - | - | - | - | - | - | 12 | 9 |
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| Payment of early extinguishment of debt charges | - | - | - | - | - | - | 46 | 3 | 13 | 2 | 8 | - | 7 | - | - |
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| us-gaap_ProceedsFromMinorityShareholders | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 0 |
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| Redemption/distribution of noncontrolling interests | - | - | - | - | - | - | - | - | - | - | - | - | - | 58 | 53 |
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| Dividends paid | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 686 |
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| Proceeds from issuance of units, net | - | - | - | - | - | - | - | - | - | - | - | - | - | 4 | 136 |
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| Repurchase of preferred units | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 27 |
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| Units repurchased for employee tax withholding on equity awards | - | - | - | - | - | - | - | - | - | - | - | - | - | 16 | 16 |
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| Principal payments under finance lease obligations | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0 |
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| Change in tenants' security deposits | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 3 |
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| Net cash flow used for financing activities | - | - | - | - | - | - | - | - | - | - | - | - | - | -301 | -781 |
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| Net change in cash, cash equivalents and restricted cash | - | - | - | - | - | - | - | - | - | - | - | - | - | 634 | -94 |
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| Interest paid during the year including payment of early extinguishment of debt charges of $0, $0 and $6,955, respectively (net of capitalized interest of $2,218, $2,313 and $668, respectively) | - | - | - | - | - | - | - | - | - | - | - | - | - | 250 | 301 |
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| Income taxes paid during the year, net of refunds | - | - | - | - | - | - | - | - | - | - | - | - | - | 65 | 61 |
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