Long-Term Employee Benefits (Plan Assets) (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Total	100.00%	100.00%
U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average target plan asset allocations	29.00%	28.00%
Non-U.S. Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average target plan asset allocations	22.00%	21.00%
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average target plan asset allocations	32.00%	32.00%
Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average target plan asset allocations	2.00%	2.00%
Private market securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average target plan asset allocations	9.00%	9.00%
Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average target plan asset allocations	3.00%	5.00%
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted average target plan asset allocations	3.00%	3.00%