Restructuring and Asset Impairment Charges - Estimated Restructuring Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring, Incurred Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]			Restructuring and asset impairment charges
2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	$ 14
Incurred restructuring costs	14
Expected costs remaining	0
2016 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	3
Incurred restructuring costs	0	$ 3
Expected costs remaining	0
2015 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	59
Incurred restructuring costs	0	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	6
Incurred restructuring costs	6
Expected costs remaining	0
Operating Segments | Water Infrastructure | 2016 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	3
Incurred restructuring costs	0	3
Expected costs remaining	0
Operating Segments | Water Infrastructure | 2015 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	23
Incurred restructuring costs	0	4	19
Expected costs remaining	0
Operating Segments | Applied Water | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	4
Incurred restructuring costs	4
Expected costs remaining	0
Operating Segments | Applied Water | 2016 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	0
Incurred restructuring costs	0	0
Expected costs remaining	0
Operating Segments | Applied Water | 2015 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	6
Incurred restructuring costs	0	2	4
Expected costs remaining	0
Operating Segments | Measurement & Control Solutions | 2017 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	4
Incurred restructuring costs	4
Expected costs remaining	0
Operating Segments | Measurement & Control Solutions | 2016 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	0
Incurred restructuring costs	0	0
Expected costs remaining	0
Operating Segments | Measurement & Control Solutions | 2015 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	30
Incurred restructuring costs	0	0	30
Expected costs remaining	0
Corporate | 2015 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected restructuring costs	0
Incurred restructuring costs	0	$ 0	$ 0
Expected costs remaining	$ 0