Notes Payable - Callable Medium-Term Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
2025	$ 4,377,382
2026	3,346,872
2027	3,109,837
Total principal net of discounts	$ 24,999,411	$ 25,000,199
Weighted-Average Rate	2.58%
Year one
Debt Instrument [Line Items]
Weighted-Average Rate	2.38%
Year two
Debt Instrument [Line Items]
Weighted-Average Rate	2.32%
Year three
Debt Instrument [Line Items]
Weighted-Average Rate	1.61%
Year four
Debt Instrument [Line Items]
Weighted-Average Rate	3.06%
Call Option
Debt Instrument [Line Items]
2024	$ 1,038,243
2025	771,937
2026	1,184,809
2027	650,076
Thereafter	1,698,156
Total principal net of discounts	$ 5,343,221
Weighted-Average Rate	2.31%
Call Option \| Year one
Debt Instrument [Line Items]
Weighted-Average Rate	3.61%
Call Option \| Year two
Debt Instrument [Line Items]
Weighted-Average Rate	2.10%
Call Option \| Year three
Debt Instrument [Line Items]
Weighted-Average Rate	1.46%
Call Option \| Year four
Debt Instrument [Line Items]
Weighted-Average Rate	2.30%
Call Option \| Thereafter
Debt Instrument [Line Items]
Weighted-Average Rate	2.21%

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