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Goodwill and Other Intangible Assets (Rollforward of Goodwill) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Changes in the carrying value of goodwill by operating segment |  |  |  |
Beginning Balance |  | $ 2,792 | $ 2,854 |
Goodwill, Impairment Loss |  | 0 | 0 | $ (58)
Foreign currency and other |  | (73) | (62) |
Ending Balance |  | 2,719 | 2,792 | 2,854
Water Infrastructure |  |  |  |
Changes in the carrying value of goodwill by operating segment |  |  |  |
Beginning Balance |  | 656 | 668 |
Foreign currency and other |  | (18) | (12) |
Ending Balance |  | 638 | 656 | 668
Applied Water |  |  |  |
Changes in the carrying value of goodwill by operating segment |  |  |  |
Beginning Balance |  | 515 | 529 |
Foreign currency and other |  | (13) | (14) |
Ending Balance |  | 502 | 515 | 529
Measurement & Control Solutions |  |  |  |
Changes in the carrying value of goodwill by operating segment |  |  |  |
Beginning Balance |  | 1,621 | 1,657 |
Goodwill, Impairment Loss | $ (58) |  |  |
Foreign currency and other |  | (42) | (36) |
Ending Balance |  | $ 1,579 | $ 1,621 | $ 1,657

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- 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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 55 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=122137925&loc=d3e14258-109268 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI https://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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