Benefit Obligations (Schedule of Principle Weighted Average Assumptions Used to Determine Benefit Obligations and Benefit Cost) (Details)		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate obligations		3.70%	4.00%
Rate of compensation increase		2.80%	2.70%
Discount rate NPBC		4.00%	3.70%	4.60%
Discount rate NPBC - service cost	[1]	3.10%	3.70%	4.60%
Discount rate NPBC - interest cost	[1]	3.20%	3.70%	4.60%
Expected return on plan assets		7.30%	7.80%	8.20%
Rate of compensation increase NPBC		2.70%	2.80%	3.00%
United States Pension Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate obligations		3.90%	4.20%
Discount rate NPBC		4.20%	3.90%	4.70%
Discount rate NPBC - service cost	[1]	4.50%	3.90%	4.70%
Discount rate NPBC - interest cost	[1]	3.40%	3.90%	4.70%
Expected return on plan assets		7.50%	8.00%	8.50%
Rate of compensation increase NPBC				3.00%
Foreign Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate obligations		2.10%	2.60%
Rate of compensation increase		2.80%	2.70%
Discount rate NPBC		2.60%	2.40%	3.70%
Discount rate NPBC - service cost	[1]	3.10%	2.40%	3.70%
Discount rate NPBC - interest cost	[1]	2.20%	2.40%	3.70%
Expected return on plan assets		6.10%	6.00%	6.20%
Rate of compensation increase NPBC		2.70%	2.80%	2.80%
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate obligations		3.40%	3.70%
Discount rate NPBC		3.90%	3.60%	4.40%
Discount rate NPBC - service cost	[1]	3.80%	3.60%	4.40%
Discount rate NPBC - interest cost	[1]	3.10%	3.60%	4.40%
United States Postretirement Benefit Plan of US Entity [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate obligations		3.80%	4.00%
Discount rate NPBC		4.00%	3.70%	4.30%
Discount rate NPBC - service cost	[1]	4.20%	3.70%	4.30%
Discount rate NPBC - interest cost	[1]	3.10%	3.70%	4.30%
Foreign Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate obligations		3.30%	3.60%
Discount rate NPBC		3.60%	3.50%	4.50%
Discount rate NPBC - service cost	[1]	3.80%	3.50%	4.50%
Discount rate NPBC - interest cost	[1]	3.10%	3.50%	4.50%

[1] Weighted-average discount rates in 2016 reflect the adoption of the full yield curve approach.