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Borrowings and Other Secured Financings - Rates for Long-Term Borrowings (Details)
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]      
Contractual weighted average coupon (as a percent) 2.70% 2.90% 3.40%
Effective weighted average coupon after swaps (as a percent) 1.60% 1.70% 2.90%