Significant Concentrations of Risk (Details)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Boeing [Member] | Revenue [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	79.00%	79.00%	79.00%
Boeing [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	40.00%	36.00%	44.00%
Airbus [Member] | Revenue [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	16.00%	16.00%	16.00%
Airbus [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	41.00%	48.00%	38.00%
Domestic Destination [Member]
Concentration Risk [Line Items]
Number of employees	15,900
percentage of represented workers	89.00%
U.K. [Member]
Concentration Risk [Line Items]
Number of employees	1,100
percentage of represented workers	64.00%
Malaysia [Member]
Concentration Risk [Line Items]
Number of employees	1,100
France [Member]
Concentration Risk [Line Items]
Number of employees	100