Notes Payable - Callable Medium-Term Notes (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
2025	$ 5,231,168
2026	3,243,230
2027	3,297,724
Total principal net of discounts	$ 25,602,487	$ 25,000,199
Weighted-Average Rate	2.90%
Year one
Debt Instrument [Line Items]
Weighted-Average Rate	2.62%
Year two
Debt Instrument [Line Items]
Weighted-Average Rate	2.60%
Year three
Debt Instrument [Line Items]
Weighted-Average Rate	1.81%
Year four
Debt Instrument [Line Items]
Weighted-Average Rate	3.14%
Call Option
Debt Instrument [Line Items]
2024	$ 816,830
2025	664,046
2026	1,012,989
2027	560,204
Thereafter	1,161,379
Total principal net of discounts	$ 4,215,448
Weighted-Average Rate	2.45%
Call Option \| Year one
Debt Instrument [Line Items]
Weighted-Average Rate	3.66%
Call Option \| Year two
Debt Instrument [Line Items]
Weighted-Average Rate	2.33%
Call Option \| Year three
Debt Instrument [Line Items]
Weighted-Average Rate	1.57%
Call Option \| Year four
Debt Instrument [Line Items]
Weighted-Average Rate	2.27%
Call Option \| Thereafter
Debt Instrument [Line Items]
Weighted-Average Rate	2.51%

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