XML 58 R47.htm IDEA: XBRL DOCUMENT v3.21.2
Pledged Assets (Assets Pledged from Counterparties) (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Offsetting Assets and Liabilities [Line Items]    
Obligation to Return Securities Borrowed Under Reverse Repurchase Agreements at Fair Value $ 10,920 $ 11,727
Restricted Cash and Cash Equivalents 623 1,307
Assets Pledged to Us [Member]    
Offsetting Assets and Liabilities [Line Items]    
Restricted Cash and Cash Equivalents 315 110
Restricted Cash and Securities Pledged 13,351 11,850
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] | Assets Pledged to Us [Member]    
Offsetting Assets and Liabilities [Line Items]    
Pledged Financial Instruments, Not Separately Reported, Mortgage-Related Securities Available-for-sale or Held-for-investment (13) (13)
Restricted Cash and Cash Equivalents 1 3
Securities Sold under Agreements to Repurchase [Member] | Assets Pledged to Us [Member]    
Offsetting Assets and Liabilities [Line Items]    
Pledged Financial Instruments, Not Separately Reported, Mortgage-Related Securities Available-for-sale or Held-for-investment (14) (16)
Derivative [Member] | Assets Pledged to Us [Member]    
Offsetting Assets and Liabilities [Line Items]    
Restricted Cash and Securities Pledged 314 107
US Treasury Securities [Member]    
Offsetting Assets and Liabilities [Line Items]    
Securities Received as Collateral, Amount Repledged and Sold 600  
US Treasury Securities [Member] | Assets Pledged to Us [Member]    
Offsetting Assets and Liabilities [Line Items]    
Pledged Financial Instruments, Not Separately Reported, Mortgage-Related Securities Available-for-sale or Held-for-investment (13,036) (11,740)
Reverse Repurchase Agreements [Member] | Assets Pledged to Us [Member]    
Offsetting Assets and Liabilities [Line Items]    
Pledged Financial Instruments, Not Separately Reported, Mortgage-Related Securities Available-for-sale or Held-for-investment (13,023) (11,727)
Reverse Repurchase Agreements [Member] | US Treasury Securities [Member] | Assets Pledged to Us [Member]    
Offsetting Assets and Liabilities [Line Items]    
Pledged Financial Instruments, Not Separately Reported, Mortgage-Related Securities Available-for-sale or Held-for-investment (13,023) (11,727)
Derivative [Member]    
Offsetting Assets and Liabilities [Line Items]    
Restricted Cash and Cash Equivalents 604 890
Derivative [Member] | US Treasury Securities [Member] | Assets Pledged to Us [Member]    
Offsetting Assets and Liabilities [Line Items]    
Pledged Financial Instruments, Not Separately Reported, Mortgage-Related Securities Available-for-sale or Held-for-investment 0 0
Derivative [Member] | Assets Pledged to Us [Member]    
Offsetting Assets and Liabilities [Line Items]    
Restricted Cash and Cash Equivalents $ 314 $ 107