Pledged Assets, Collateral and Restricted Assets (Tables)

9 Months Ended

Sep. 30, 2023

Transfers and Servicing [Abstract]

Schedule of Financial Instruments Owned and Pledged as Collateral

The following table presents the carrying value of Northern Trust's pledged assets by type.

TABLE 57: TYPE OF PLEDGED ASSETS

(In Billions)	SEPTEMBER 30, 2023		DECEMBER 31, 2022
Debt Securities(1)	$	27.8	$	31.4
Loans(2)	11.2		11.8
Total Pledged Assets	$	39.0	$	43.2

(1) Debt securities are comprised of held to maturity and available for sale securities.

(2) Loans pledged at the FHLB of Chicago and the Federal Reserve Bank of Chicago.

The following table presents the AFS debt securities pledged as collateral that are included in pledged assets.

TABLE 58: FAIR VALUE OF AVAILABLE FOR SALE DEBT SECURITIES INCLUDED IN PLEDGED ASSETS

	SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE				DERIVATIVE CONTRACTS
(In Millions)	SEPTEMBER 30, 2023		DECEMBER 31, 2022		SEPTEMBER 30, 2023		DECEMBER 31, 2022
Debt Securities
Available for Sale	$	540.7	$	464.7	$	15.6	$	34.7

Schedule of Customer Securities for which Entity has Right to Sell or Repledge

The following table presents the fair value of securities accepted as collateral.

TABLE 59: ACCEPTED COLLATERAL

(In Millions)	SEPTEMBER 30, 2023		DECEMBER 31, 2022
Collateral that may be repledged or sold
Reverse repurchase agreements(1)(2)	$	49,972.7	$	12,119.4
Derivative contracts	14.3		5.0
Collateral that may not be repledged or sold
Reverse repurchase agreements	—		450.0
Total Collateral Accepted	$	49,987.0	$	12,574.4

(1) The fair value of securities collateral that was repledged or sold totaled $49.6 billion and $11.5 billion at September 30, 2023 and December 31, 2022, respectively.

(2) This includes collateral accepted as related to the sponsored member program. Refer to Note 20—Commitments and Contingent Liabilities for further information.