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Restructuring and Asset Impairment Charges - Estimated Restructuring Costs (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
2017 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | $ 5 |
Incurred restructuring costs | 3 |
Expected costs remaining | 2 |
2016 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | 59 |
Incurred restructuring costs | 6 | $ 53
Expected costs remaining | 0 |
Corporate | 2017 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | 0 |
Incurred restructuring costs | 0 |
Expected costs remaining | 0 |
Corporate | 2016 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | 0 |
Incurred restructuring costs | 0 | 0
Expected costs remaining | 0 |
Operating Segments | Water Infrastructure | 2017 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | 4 |
Incurred restructuring costs | 3 |
Expected costs remaining | 1 |
Operating Segments | Water Infrastructure | 2016 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | 23 |
Incurred restructuring costs | 4 | 19
Expected costs remaining | 0 |
Operating Segments | Applied Water | 2017 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | 0 |
Incurred restructuring costs | 0 |
Expected costs remaining | 0 |
Operating Segments | Applied Water | 2016 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | 6 |
Incurred restructuring costs | 2 | 4
Expected costs remaining | 0 |
Operating Segments | Measurement & Control Solutions | 2017 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | 1 |
Incurred restructuring costs | 0 |
Expected costs remaining | 1 |
Operating Segments | Measurement & Control Solutions | 2016 Restructuring Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Expected restructuring costs | 30 |
Incurred restructuring costs | 0 | $ 30
Expected costs remaining | $ 0 |

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- Definition Amount expected to be recognized in earnings for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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