Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Intangible Asset, Finite-Lived | |||||
| Amortization expense related to finite-lived intangible assets | $ 75 | $ 76 | $ 150 | $ 153 | |
| Software | |||||
| Intangible Asset, Finite-Lived | |||||
| Intangible Asset, Excluding Goodwill, Indefinite-Lived, Impairment Loss | 2 | ||||
| Measurement and Control Solutions | Software | |||||
| Intangible Asset, Finite-Lived | |||||
| Intangible Asset, Excluding Goodwill, Indefinite-Lived, Impairment Loss | $ 2 | ||||
| Water Solutions and Services | Software | |||||
| Intangible Asset, Finite-Lived | |||||
| Intangible Asset, Excluding Goodwill, Indefinite-Lived, Impairment Loss | $ 3 | ||||
| Water Infrastructure | Software | |||||
| Intangible Asset, Finite-Lived | |||||
| Intangible Asset, Excluding Goodwill, Indefinite-Lived, Impairment Loss | $ 1 | ||||
| X | ||||||||||
- Definition Amount of amortization expense for finite-lived intangible asset. Excludes goodwill and capitalized cost for software to be sold, leased, or marketed. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of impairment loss for indefinite-lived intangible asset. Excludes goodwill. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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