Commitments and Contingent Liabilities (Tables)

6 Months Ended

Jun. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of Fair Value, Off-balance Sheet Risks

The following table provides details of Northern Trust's off-balance sheet financial instruments as of June 30, 2023 and December 31, 2022.

TABLE 75: SUMMARY OF OFF-BALANCE SHEET FINANCIAL INSTRUMENTS

	JUNE 30, 2023						DECEMBER 31, 2022
($ In Millions)	ONE YEAR AND LESS		OVER ONE YEAR		TOTAL		ONE YEAR AND LESS		OVER ONE YEAR		TOTAL
Undrawn Commitments(1)	$	12,169.1	$	18,047.1	$	30,216.2	$	13,639.2	$	17,321.4	$	30,960.6
Standby Letters of Credit and Financial Guarantees(2)(3)	48,306.3		378.1		48,684.4		17,553.0		409.9		17,962.9
Commercial Letters of Credit	34.9		1.2		36.1		25.4		1.3		26.7
Securities Lent with Indemnification	143,809.6		—		143,809.6		130,311.0		—		130,311.0
Unsettled Reverse Repurchase Agreements	4,872.8		—		4,872.8		496.8		—		496.8
Total Off-Balance Sheet Financial Instruments	$	209,192.7	$	18,426.4	$	227,619.1	$	162,025.4	$	17,732.6	$	179,758.0

(1) These amounts exclude $215.8 million and $266.6 million of commitments participated to others at June 30, 2023 and December 31, 2022, respectively.

(2) These amounts include $30.8 million and $35.1 million of standby letters of credit secured by cash deposits or participated to others as of June 30, 2023 and December 31, 2022, respectively.

(3) These amounts include a $47.0 billion and $16.3 billion guarantee to the Fixed Income Clearing Corporation (FICC) under the sponsored member program, without taking into consideration the related collateral, as of June 30, 2023 and December 31, 2022, respectively. Northern Trust became a sponsored member during the third quarter of 2021.