XML 139 R120.htm IDEA: XBRL DOCUMENT v3.10.0.1
Employee Benefit Plans: Plan Assets Allocation (Details)
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Target Allocation Percentage of Assets 100.00% 100.00%
Equity Securities    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Target Allocation Percentage of Assets 17.00% 26.00%
Real Estate    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Target Allocation Percentage of Assets 4.00% 4.00%
Fixed Income Funds    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Target Allocation Percentage of Assets 71.00% 63.00%
Cash and Cash Equivalents    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Target Allocation Percentage of Assets 3.00% 1.00%
Hedge Funds    
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Defined Benefit Plan, Target Allocation Percentage of Assets 5.00% 6.00%