v3.24.4
Fair Value Measurements (Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale [1] $ 13,402 $ 11,987
US Treasury and Government    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale [1] 12,937 11,423
Residential Mortgage Backed Securities - Agency [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale [1] 465 [2] 564
Fair Value, Recurring [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 13,402 11,987
Equity Securities, FV-NI 1 41 [3]
Fair Value, Recurring [Member] | Interest Rate Swaps [Member] | Cash Flow Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments, assets, fair value [3] 2 1
Derivative financial instruments, liabilities, fair value [3]   3
Fair Value, Recurring [Member] | Interest Rate Swaps [Member] | Fair Value Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments, assets, fair value [3] 2  
Derivative financial instruments, liabilities, fair value [3]   2
Fair Value, Recurring [Member] | US Treasury and Government    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 12,937 11,423
Fair Value, Recurring [Member] | Residential Mortgage Backed Securities - Agency [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 465 564
Fair Value, Recurring [Member] | Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 12,928 11,416
Equity Securities, FV-NI 1 41
Fair Value, Recurring [Member] | Level 1 [Member] | Interest Rate Swaps [Member] | Cash Flow Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments, assets, fair value [3] 0 0
Derivative financial instruments, liabilities, fair value [3]   0
Fair Value, Recurring [Member] | Level 1 [Member] | Interest Rate Swaps [Member] | Fair Value Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments, assets, fair value [3] 0  
Derivative financial instruments, liabilities, fair value [3]   0
Fair Value, Recurring [Member] | Level 1 [Member] | US Treasury and Government    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 12,928 11,416
Fair Value, Recurring [Member] | Level 1 [Member] | Residential Mortgage Backed Securities - Agency [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 0 0
Fair Value, Recurring [Member] | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 474 571
Equity Securities, FV-NI 0 0
Fair Value, Recurring [Member] | Level 2 [Member] | Interest Rate Swaps [Member] | Cash Flow Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments, assets, fair value [3] 2 1
Derivative financial instruments, liabilities, fair value [3]   3
Fair Value, Recurring [Member] | Level 2 [Member] | Interest Rate Swaps [Member] | Fair Value Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments, assets, fair value [3] 2  
Derivative financial instruments, liabilities, fair value [3]   2
Fair Value, Recurring [Member] | Level 2 [Member] | US Treasury and Government    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 9 7
Fair Value, Recurring [Member] | Level 2 [Member] | Residential Mortgage Backed Securities - Agency [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 465 564
Fair Value, Recurring [Member] | Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 0 0
Equity Securities, FV-NI 0 0
Fair Value, Recurring [Member] | Level 3 [Member] | Interest Rate Swaps [Member] | Cash Flow Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments, assets, fair value [3] 0 0
Derivative financial instruments, liabilities, fair value [3]   0
Fair Value, Recurring [Member] | Level 3 [Member] | Interest Rate Swaps [Member] | Fair Value Hedges [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivative financial instruments, assets, fair value [3] 0  
Derivative financial instruments, liabilities, fair value [3]   0
Fair Value, Recurring [Member] | Level 3 [Member] | US Treasury and Government    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale 0 0
Fair Value, Recurring [Member] | Level 3 [Member] | Residential Mortgage Backed Securities - Agency [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Debt Securities, Available-for-sale $ 0 $ 0
[1] Available-for-sale investment securities are reported at fair value.
[2] Maturities of RMBS are reflective of the contractual maturities of the investment.
[3] Derivative instrument carrying values in an asset or liability position are presented as part of other assets or accrued expenses and other liabilities, respectively, in the Company’s consolidated statements of financial condition.