Statements of Condition (Parenthetical) - USD ($) shares in Millions, $ in Millions		Mar. 31, 2020	Dec. 31, 2019
HTM securities pledged as collateral that may be repledged		$ 0	$ 0
Available-for-sale securities pledged as collateral that may be repledged		643	381
Trading securities pledged as collateral that may be repledged		0	0
Assets:
Fair Value of Held-to-maturity securities		6,867	7,566
Fair Value of Advances Under the Fair Value Option	[1]	4,334	4,370
Amortized Cost of AFS	[2]	$ 16,427	$ 15,206
Capital:
Common stock, par value		$ 100
Common Class B
Capital:
Common stock, par value		$ 100	$ 100
Common stock, shares issued		32	30
Common Stock, Shares, Outstanding		32	30
Consolidated obligation bonds
Liabilities:
Fair Value of Bonds Under the Fair Value Option		$ 254	$ 337

[1] At March 31, 2020, and December 31, 2019, none of these advances were 90 days or more past due or had been placed on nonaccrual status.

[2] Amortized cost includes unpaid principal balance, unamortized premiums and discounts, net charge-offs, and valuation adjustments for hedging activities, and excludes accrued interest receivable of $51 and $58 at March 31, 2020, and December 31, 2019, respectively.