Goodwill and Other Intangibles (Tables)

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

Changes in the carrying amount of goodwill are as follows:

June 30,
(In millions)	2020			2019
Balance as of January 1,	$	14,671		$	9,599
Goodwill acquired	466			4,895
Other adjustments(a)	(340		)	(15		)
Balance at June 30,	$	14,797		$	14,479

^(a) Primarily reflects the impact of foreign exchange.

Amortized Intangible Assets

The gross cost and accumulated amortization of identified intangible assets at June 30, 2020 and December 31, 2019 are as follows:

	June 30, 2020						December 31, 2019
(In millions)	Gross Cost		Accumulated Amortization		Net Carrying Amount		Gross Cost		Accumulated Amortization		Net Carrying Amount
Client Relationships	$	3,592	$	1,002	$	2,590	$	3,494	$	897	$	2,597
Other (a)	390		219		171		380		203		177
Amortized intangibles	$	3,982	$	1,221	$	2,761	$	3,874	$	1,100	$	2,774

^(a) Primarily non-compete agreements, trade names and developed technology.

Estimated Future Aggregate Amortization Expense

The estimated future aggregate amortization expense is as follows:

For the Years Ending December 31,
(In millions)	Estimated Expense
2020 (excludes amortization through June 30, 2020)	$	181
2021	347
2022	321
2023	296
2024	282
Subsequent years	1,334
	$	2,761