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Goodwill and Other Intangible Assets (Goodwill Rollforward) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Changes in the carrying value of goodwill by operating segment
Balance as of January 1, 2023	$ 2,719
Foreign currency and other	19
Balance as of March 31, 2023	2,738
Water Infrastructure
Changes in the carrying value of goodwill by operating segment
Balance as of January 1, 2023	638
Foreign currency and other	5
Balance as of March 31, 2023	643
Applied Water
Changes in the carrying value of goodwill by operating segment
Balance as of January 1, 2023	502
Foreign currency and other	4
Balance as of March 31, 2023	506
Measurement & Control Solutions
Changes in the carrying value of goodwill by operating segment
Balance as of January 1, 2023	1,579
Foreign currency and other	10
Balance as of March 31, 2023	$ 1,589

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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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-Section S99
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X

- Definition

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.

+ References

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- Definition

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