Real Estate and Other Activities - Investments in Unconsolidated Real Estate Joint Ventures - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Mar. 14, 2022
Business Acquisition [Line Items]
Percentage of equity investment		50.00%
Investments in Unconsolidated Real Estate Joint Ventures [Member]
Business Acquisition [Line Items]
Percentage of equity investment	100.00%
Dividend income	$ 50
Investments in Unconsolidated Real Estate Joint Ventures [Member] | Switzerland [Member]
Business Acquisition [Line Items]
Dividend income	$ 27
Investments in Unconsolidated Real Estate Joint Ventures [Member] | Maximum [Member]
Business Acquisition [Line Items]
Percentage of equity investment	100.00%