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Goodwill and Other Intangible Assets - Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($)
Goodwill [Roll Forward]
Balance at beginning of period	$ 14,094.5
Additions	25.6
Other	(0.5)
Currency translation adjustments	(24.7)
Balance at end of period	14,094.9
Application Software
Goodwill [Roll Forward]
Balance at beginning of period	8,889.3
Additions	25.6
Other	0.0
Currency translation adjustments	(6.6)
Balance at end of period	8,908.3
Network Software & Systems
Goodwill [Roll Forward]
Balance at beginning of period	3,797.0
Additions	0.0
Other	(0.5)
Currency translation adjustments	(12.1)
Balance at end of period	3,784.4
Measurement & Analytical Solutions
Goodwill [Roll Forward]
Balance at beginning of period	1,160.6
Additions	0.0
Other	0.0
Currency translation adjustments	(5.0)
Balance at end of period	1,155.6
Process Technologies
Goodwill [Roll Forward]
Balance at beginning of period	247.6
Additions	0.0
Other	0.0
Currency translation adjustments	(1.0)
Balance at end of period	$ 246.6

X

- Definition

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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