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Summary of Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Schedule of Weighted Average Diluted Shares Outstanding The effects of potential common stock were determined using the treasury stock method:
  
Years ended December 31,
 
2019
 
2018
 
2017
Basic weighted-average shares outstanding
103.9

 
103.2

 
102.2

Effect of potential common stock:
 

 
 

 
 

Common stock awards
1.2

 
1.2

 
1.3

Diluted weighted-average shares outstanding
105.1

 
104.4

 
103.5


Schedule of Property, Plant and Equipment Depreciation and amortization are provided for using principally the straight-line method over the estimated useful lives of the assets as follows:
Buildings
20-30 years
Machinery
8-12 years
Other equipment
3-5 years


The components of property, plant and equipment at December 31 were as follows:
 
2019
 
2018
Land
$
2.2

 
$
2.2

Buildings
84.7

 
76.7

Machinery and other equipment
218.1

 
218.0

Computer equipment
96.4

 
79.4

Software
73.3

 
64.4

 
474.7

 
440.7

Accumulated depreciation
(334.8
)
 
(312.0
)
 
$
139.9

 
$
128.7


Schedule of Disaggregated Revenue
 
 
Year ended December 31,
 
 
2019
 
2018
Software and related services
 
$
2,477.7

 
$
2,165.9

Engineered products and related services
 
2,889.1

 
3,025.3

Net revenues
 
$
5,366.8

 
$
5,191.2