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ACQUISITIONS - Narrative (Details) € in Millions, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 USD ($) | Mar. 31, 2021 USD ($) | Mar. 31, 2021 EUR (€) | Dec. 31, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Acquisitions |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | $ 64 | $ 41
Easy Sanitary Solutions B.V. |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Noncontrolling interest ownership |  | 24.90% | 24.90% |  |  |  |
SmarTap |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Cash consideration |  |  |  |  | $ 24 |  |
Increase in definite-lived intangible assets |  |  |  |  | $ 10 |  |
Weighted average useful life |  |  |  |  | 5 years |  |
Goodwill |  |  |  |  | $ 14 |  |
Kraus USA Inc. |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Cash consideration |  |  |  | $ 103 |  |  |
Increase in definite-lived intangible assets |  |  |  | $ 49 |  |  |
Weighted average useful life |  |  |  | 10 years |  |  |
Goodwill |  |  |  | $ 20 |  |  |
Asset acquisition, consideration transferred, contingent consideration |  |  |  | 50 |  |  |
Contingent consideration, liability |  |  |  | 8 |  | 24 | 8
Goodwill, purchase accounting adjustments |  |  |  | 1 |  |  |
Work Tools International Inc. and Elder & Jenks LLC |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Cash consideration |  |  |  | 48 |  |  |
Increase in definite-lived intangible assets |  |  |  | $ 27 |  |  |
Weighted average useful life |  |  |  | 12 years |  |  |
Goodwill |  |  |  | $ 7 |  |  |
Consideration transferred |  |  |  | 53 |  |  |
Liabilities incurred |  |  |  | $ 5 |  |  |
Liabilities incurred, payment period |  |  |  | 18 months |  |  |
Increase in other indefinite-lived intangible assets |  |  |  | $ 7 |  |  |
Steamist, Inc. |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Cash consideration | $ 56 |  |  |  |  |  |
Increase in definite-lived intangible assets | $ 31 |  |  |  |  |  |
Weighted average useful life | 11 years |  |  |  |  |  |
Goodwill | $ 29 |  |  |  |  |  |
Easy Sanitary Solutions B.V. |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Cash consideration |  | $ 52 |  |  |  |  |
Increase in definite-lived intangible assets |  | $ 32 |  |  |  |  |
Weighted average useful life |  | 10 years | 10 years |  |  |  |
Goodwill |  | $ 35 |  |  |  |  |
Equity interest acquired |  | 75.10% | 75.10% |  |  |  |
Consideration transferred |  | $ 58 | € 47 |  |  |  |
Liabilities incurred |  | $ 6 |  |  |  |  |
Liabilities incurred, payment period |  | 2 years | 2 years |  |  |  |
Plumbing Products |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | $ 63 | $ 34
Plumbing Products | Kraus USA Inc. |  |  |  |  |  |  |
Acquisitions |  |  |  |  |  |  |
Increase in other indefinite-lived intangible assets |  |  |  | $ 25 |  |  |

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