Goodwill and Other Intangibles (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill

Changes in the carrying amount of goodwill are as follows: 

(In millions)	2021		2020
Balance as of January 1, as reported	$	15,517	$	14,671
Goodwill acquired	1,045		593
Other adjustments(a)	(245)		253
Balance at December 31,	$	16,317	$	15,517

(a) Primarily reflects the impact of foreign exchange and dispositions.

Schedule of finite-lived intangible assets

The gross cost and accumulated amortization of intangible assets at December 31, 2021 and 2020 are as follows:

(In millions)	2021						2020
	Gross Cost		Accumulated Amortization		Net Carrying Amount		Gross Cost		Accumulated Amortization		Net Carrying Amount
Customer relationships	$	4,066	$	1,334	$	2,732	$	3,713	$	1,170	$	2,543
Other(a)	365		287		78		386		230		156
Amortized intangibles	$	4,431	$	1,621	$	2,810	$	4,099	$	1,400	$	2,699

(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)
2022	$	350
2023	327
2024	307
2025	271
2026	252
Subsequent years	1,303
	$	2,810