Income Taxes (Statutory Tax Rate to Effective Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Contingency [Line Items]
Statutory tax rate	20.00%	35.00%	35.00%
Effective tax rate	7.40%	4.20%	16.20%
United States
Income Tax Contingency [Line Items]
Clean energy and research credits	(13.00%)	(9.60%)	(5.70%)
Rate differential	4.60%	0.00%	0.00%
Other	0.00%	(2.20%)	2.10%
Foreign tax credits, net	(0.00%)	(0.60%)	(2.60%)
State income taxes and credits	0.00%	2.20%	1.00%
Other Foreign Operations
Income Tax Contingency [Line Items]
Rate differential	(15.20%)	(11.90%)	(13.00%)
Other	4.80%	4.00%	(3.80%)
Uncertain tax positions	(0.30%)	1.60%	(1.10%)
Valuation allowance	6.50%	0.90%	4.30%
Merger of foreign subsidiaries	0.00%	(15.20%)	0.00%