Employee Benefit Plans and Other Postretirement Benefits - Schedule of Pension Plan Asset Investments and Target Allocations (Details)	Dec. 31, 2018	Jan. 05, 2018	Dec. 31, 2017
Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of Fair Value	53.00%	52.00%	21.00%
International Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of Fair Value	27.00%	28.00%	6.00%
U.S. Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of Fair Value	18.00%	20.00%	9.00%
Other Securities
Defined Benefit Plan Disclosure [Line Items]
Percentage of Fair Value	2.00%		64.00%