Employee Benefits (Narrative Defined Benefit Plans) (Details) - Domestic Plan [Member] $ in Millions	1 Months Ended
	Dec. 31, 2014 plan	Dec. 31, 2017 USD ($)
Defined Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans amended | plan	1
Pension Plan Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected future contributions in the next fiscal year | $		$ 3