XML 52 R33.htm IDEA: XBRL DOCUMENT v3.20.1
Other Retirement Plans (Tables)
 3 Months Ended
Mar. 31, 2020
Multiemployer Plans [Abstract]  
Schedule of Covered Employees and Contributions, Multiemployer Plans Total contributions to multiemployer plans and the related number of employees covered by these plans for the periods indicated were as follows:
 
Multiemployer Plans
 
Covered Employees
 
Contributions (in millions)
 
Low
 
High
 
Pension
 
Other Multiemployer
 
Total
For the Three Months Ended March 31:
 
 
 
 
 
 
 
 
 
2020
1,119

 
1,424

 
$
5.4

 
$
1.7

 
$
7.1

2019
1,626

 
2,117

 
$
7.0

 
$
1.3

 
$
8.3