Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 28,201	$ 27,019
Foreign currency translation	(966)	1,218
Disposals (Note 2)	(243)	(49)
Goodwill, ending balance	27,038	28,201
Americas
Goodwill [Roll Forward]
Goodwill, beginning balance	9,083	9,042
Foreign currency translation	(41)	35
Disposals (Note 2)	0	(7)
Goodwill, ending balance	9,087	9,083
EMEA
Goodwill [Roll Forward]
Goodwill, beginning balance	10,844	10,243
Foreign currency translation	(559)	643
Disposals (Note 2)	(8)	(42)
Goodwill, ending balance	10,278	10,844
APAC
Goodwill [Roll Forward]
Goodwill, beginning balance	5,262	4,957
Foreign currency translation	(173)	305
Disposals (Note 2)	(235)	0
Goodwill, ending balance	4,854	5,262
Engineering
Goodwill [Roll Forward]
Goodwill, beginning balance	2,682	2,470
Foreign currency translation	(186)	212
Disposals (Note 2)	0	0
Goodwill, ending balance	2,496	2,682
Other
Goodwill [Roll Forward]
Goodwill, beginning balance	330	307
Foreign currency translation	(7)	23
Disposals (Note 2)	0	0
Goodwill, ending balance	323	330
2018 Non-Merger Related Acquisitions
Goodwill [Roll Forward]
Acquisitions	46	13
2018 Non-Merger Related Acquisitions \| Americas
Goodwill [Roll Forward]
Acquisitions	45	13
2018 Non-Merger Related Acquisitions \| EMEA
Goodwill [Roll Forward]
Acquisitions	1	0
2018 Non-Merger Related Acquisitions \| APAC
Goodwill [Roll Forward]
Acquisitions	0	0
2018 Non-Merger Related Acquisitions \| Engineering
Goodwill [Roll Forward]
Acquisitions	0	0
2018 Non-Merger Related Acquisitions \| Other
Goodwill [Roll Forward]
Acquisitions	$ 0	$ 0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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