Goodwill and Other Intangibles

9 Months Ended

Sep. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill. Changes by reporting segment in the carrying amount of Goodwill for the nine months ended September 30, 2024, including the effect of foreign exchange rates on non-U.S. dollar denominated balances, were as follows.

TABLE 58: GOODWILL


(In Millions)	ASSET SERVICING		WEALTH MANAGEMENT		TOTAL
Balance at December 31, 2023	$	621.9	$	80.4	$	702.3

Foreign Exchange Rates	5.5		—		5.5
Balance at September 30, 2024	$	627.4	$	80.4	$	707.8

Other Intangible Assets Subject to Amortization. The gross carrying amount and accumulated amortization of other intangible assets subject to amortization as of September 30, 2024 and December 31, 2023 were as follows.

TABLE 59: OTHER INTANGIBLE ASSETS


(In Millions)	SEPTEMBER 30, 2024		DECEMBER 31, 2023
Gross Carrying Amount	$	136.0	$	135.0
Less: Accumulated Amortization	71.1		63.4
Net Book Value	$	64.9	$	71.6

Other intangible assets consist primarily of the value of acquired client relationships and are included within Other Assets on the consolidated balance sheets. Amortization expense related to other intangible assets totaled $2.4 million and $7.1 million for the three and nine months ended September 30, 2024 and $2.3 million and $7.0 million for the three and nine months ended September 30, 2023, respectively. Amortization for the remainder of 2024 and for the years 2025, 2026, 2027, and 2028 is estimated to be $2.3 million, $9.0 million, $8.6 million, $8.4 million, and $7.7 million, respectively.

Capitalized Software. The gross carrying amount and accumulated amortization of capitalized software as of September 30, 2024 and December 31, 2023 were as follows.

TABLE 60: CAPITALIZED SOFTWARE


(In Millions)	SEPTEMBER 30, 2024		DECEMBER 31, 2023
Gross Carrying Amount	$	4,256.2	$	3,781.7
Less: Accumulated Amortization	2,197.4		1,754.2
Net Book Value	$	2,058.8	$	2,027.5

Capitalized software, which is included in Other Assets on the consolidated balance sheets, consists primarily of purchased software, software licenses, and allowable internal costs, including compensation relating to software developed for internal use. Fees paid for the use of software licenses that are not hosted by Northern Trust are expensed as incurred. Amortization expense, which is included in Equipment and Software expense on the consolidated statements of income, totaled $153.1 million and $444.1 million for the three and nine months ended September 30, 2024, respectively, and $126.7 million and $370.8 million for the three and nine months ended September 30, 2023, respectively.