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Long-Term Employee Benefits (Plan Assets) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
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 | 27.00% | 29.00%
Non-U.S. Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average target plan asset allocations | 24.00% | 22.00%
Fixed Income Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average target plan asset allocations | 33.00% | 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 | 8.00% | 9.00%
Real Estate [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average target plan asset allocations | 4.00% | 3.00%
Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Weighted average target plan asset allocations | 2.00% | 3.00%

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- Definition Target allocation of investments of this type to total plan assets presented on a weighted average basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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