Goodwill and Other Intangibles (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

Changes in the carrying amount of goodwill are as follows:

March 31,
(In millions)	2020			2019
Balance as of January 1,	$	14,671		$	9,599
Goodwill acquired	142			97
Other adjustments(a)	(401		)	43
Balance at March 31,	$	14,412		$	9,739

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

Amortized Intangible Assets

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

	March 31, 2020						December 31, 2019
(In millions)	Gross Cost		Accumulated Amortization		Net Carrying Amount		Gross Cost		Accumulated Amortization		Net Carrying Amount
Client Relationships	$	3,450	$	951	$	2,499	$	3,494	$	897	$	2,597
Other (a)	373		209		164		380		203		177
Amortized intangibles	$	3,823	$	1,160	$	2,663	$	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 March 31, 2020)	$	249
2021	325
2022	298
2023	277
2024	266
Subsequent years	1,248
	$	2,663