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Real Estate Investments (Details) shares in Millions, $ in Billions |  | 12 Months Ended
--- | --- | ---
Mar. 01, 2017 USD ($) property | Dec. 31, 2019 shares
Parent Company [Member] |  |
Business Acquisition [Line Items] |  |
Conversion of Stock, Conversion Ratio |  | 0.45
Stock Issued During Period, Shares, Acquisitions | shares |  | 65.5
Equity One Inc. [Member] |  |
Business Acquisition [Line Items] |  |
Business Combination, Consideration Transferred | $ | $ 5.2 |
Number of real estate properties acquired | 121 |
Equity One Inc. [Member] | Partially Owned Properties [Member] |  |
Business Acquisition [Line Items] |  |
Number of real estate properties acquired | 8 |

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