Revenue Revenue (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregated Revenue by Business Group

The following table presents disaggregated revenue by business group:

	Twelve Months Ended December 31,
in millions	2020		2019		2018
Net sales
Commercial and Industrial	$	762.1	$	902.1	$	910.8
Construction and Energy	715.4		808.7		799.7
Lighting	786.1		914.9		950.1
Total Electrical Solutions	$	2,263.6	$	2,625.7	$	2,660.6
Power Systems	1,343.0		1,283.1		1,210.0
Aclara	579.4		682.2		611.1
Total Utility Solutions	$	1,922.4	$	1,965.3	$	1,821.1
TOTAL	$	4,186.0	$	4,591.0	$	4,481.7

The following table presents disaggregated third-party net sales by geographic location (on a geographic basis, the Company defines "international" as operations based outside of the United States and its possessions):

	Twelve Months Ended December 31,
in millions	2020		2019		2018
Net sales
United States	$	2,049.5	$	2,358.2	$	2,365.4
International	214.1		267.5		295.2
Total Electrical Solutions	$	2,263.6	$	2,625.7	$	2,660.6
United States	1,810.9		1,832.3		1,675.2
International	111.5		133.0		145.9
Total Utility Solutions	$	1,922.4	$	1,965.3	$	1,821.1
TOTAL	$	4,186.0	$	4,591.0	$	4,481.7