Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Principles - Significant Accounting Principles: Collateral (Details)

v3.20.4
Summary of Significant Accounting Principles - Significant Accounting Principles: Collateral (Details) - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]    
Securities held as collateral, fair value $ 812.4 $ 693.0
Securities received as collateral, amount re-pledged and sold $ 758.5 $ 593.8