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Goodwill and Other Intangible Assets (Tables)
 6 Months Ended
Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Changes in the carrying value of goodwill by operating segment Changes in the carrying value of goodwill by reportable segment for the six months ended June 30, 2021 are as follows:
(in millions)
Water
Infrastructure
Applied WaterMeasurement & Control SolutionsTotal
Balance as of January 1, 2021$668 $529 $1,657 $2,854 
Activity in 2021
Foreign currency and other— (5)(8)(13)
Balance as of June 30, 2021$668 $524 $1,649 $2,841 
Other Intangible Assets Information regarding our other intangible assets is as follows:
June 30, 2021December 31, 2020
(in millions)
Carrying
Amount
Accumulated
Amortization
Net
Intangibles
Carrying
Amount
Accumulated
Amortization
Net
Intangibles
Customer and distributor relationships$941 $(436)$505 $941 $(410)$531 
Proprietary technology and patents206 (138)68 206 (131)75 
Trademarks143 (68)75 143 (63)80 
Software523 (284)239 500 (265)235 
Other21 (19)2 21 (18)3 
Indefinite-lived intangibles169 — 169 169 — 169 
Other Intangibles$2,003 $(945)$1,058 $1,980 $(887)$1,093