Acquisitions and Divestitures - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Apr. 30, 2019
Business Acquisition [Line Items]
Carrying Value	$ 21,397,743,000		$ 21,285,446,000
Commercial and Residential Lending Segment
Business Acquisition [Line Items]
Proceeds from sale of operating properties	0	$ 0
Commercial and Residential Lending Segment | Orlando, Florida | Credit deteriorated
Business Acquisition [Line Items]
Carrying Value				$ 18,500,000
Operating properties | Investing and Servicing Segment
Business Acquisition [Line Items]
Proceeds from sale of operating properties	$ 0	34,500,000
Gain on sale of property		11,700,000
Operating properties | Commercial and Residential Lending Segment | Orlando, Florida
Business Acquisition [Line Items]
Proceeds from sale of operating properties		114,800,000
Gain on sale of property		$ 86,600,000