Revenue (Tables)

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Geographic net sales information, based on geographic destination of the sale, was as follows:

	Three months ended				Six months ended
In millions	June 30, 2020		June 30, 2019		June 30, 2020		June 30, 2019
U.S.	$	482.7	$	511.1	$	946.7	$	937.1
Western Europe	84.9		106.9		188.7		211.2
Developing (1)	100.4		129.0		194.9		237.9
Other Developed (2)	45.3		52.5		93.0		102.2
Consolidated net sales	$	713.3	$	799.5	$	1,423.3	$	1,488.4
(1)  Developing includes China, Eastern Europe, Latin America, the Middle East and Southeast Asia.
(2) Other Developed includes Australia, Canada and Japan.

Vertical net sales information was as follows:

	Three months ended				Six months ended
In millions	June 30, 2020		June 30, 2019		June 30, 2020		June 30, 2019
Residential	$	439.7	$	451.0	$	855.5	$	834.6
Commercial	124.4		170.7		265.8		321.4
Industrial	149.2		177.8		302.0		332.4
Consolidated net sales	$	713.3	$	799.5	$	1423.3	$	1488.4

Contract with Customer, Asset and Liability

Contract assets and liabilities

Contract assets and liabilities consisted of the following:

In millions	June 30, 2020		December 31, 2019		$ Change			% Change
Contract assets	$	49.5	$	41.0	$	8.5		20.7	%
Contract liabilities	29.1		32.6		(3.5		)	(10.7	)%
Net contract assets	$	20.4	$	8.4	$	12.0		142.9	%