Supplemental Information (Postretirement Benefit Plans - Asset Allocation) (Details)	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Principal pension plans \| Equity Securities
Asset Allocation
Target plan asset allocations range minimum	17.00%
Target plan asset allocations range maximum	57.00%
Actual allocation	47.00%
Principal pension plans \| Debt securities
Asset Allocation
Target plan asset allocations range minimum	13.00%
Target plan asset allocations range maximum	53.00%
Actual allocation	29.00%
Principal pension plans \| Private equities
Asset Allocation
Target plan asset allocations range minimum	8.00%
Target plan asset allocations range maximum	18.00%
Actual allocation	11.00%
Principal pension plans \| Real estate
Asset Allocation
Target plan asset allocations range minimum	2.00%
Target plan asset allocations range maximum	12.00%
Actual allocation	7.00%
Principal pension plans \| Other investments
Asset Allocation
Target plan asset allocations range minimum	3.00%
Target plan asset allocations range maximum	13.00%
Actual allocation	6.00%
Other pension plans \| Equity Securities \| Weighted average
Asset Allocation
Target Allocations	37.00%
Actual allocation	40.00%
Other pension plans \| Debt securities \| Weighted average
Asset Allocation
Target Allocations	37.00%
Actual allocation	40.00%
Other pension plans \| Private equities \| Weighted average
Asset Allocation
Target Allocations	5.00%
Actual allocation	4.00%
Other pension plans \| Real estate \| Weighted average
Asset Allocation
Target Allocations	9.00%
Actual allocation	8.00%
Other pension plans \| Other investments \| Weighted average
Asset Allocation
Target Allocations	12.00%
Actual allocation	8.00%
Principal retiree benefit plans \| Equity Securities
Asset Allocation
Target plan asset allocations range minimum	35.00%
Target plan asset allocations range maximum	75.00%
Actual allocation	59.00%
Principal retiree benefit plans \| Debt securities
Asset Allocation
Target plan asset allocations range minimum	11.00%
Target plan asset allocations range maximum	46.00%
Actual allocation	27.00%
Principal retiree benefit plans \| Private equities
Asset Allocation
Target plan asset allocations range minimum	0.00%
Target plan asset allocations range maximum	25.00%
Actual allocation	11.00%
Principal retiree benefit plans \| Real estate
Asset Allocation
Target plan asset allocations range minimum	0.00%
Target plan asset allocations range maximum	12.00%
Actual allocation	1.00%
Principal retiree benefit plans \| Other investments
Asset Allocation
Target plan asset allocations range minimum	0.00%
Target plan asset allocations range maximum	10.00%
Actual allocation	2.00%
GE Pension Plan
Asset Allocation
Maximum Percentage Of Fair Value of Trust Assets That Can Be Qualifying Employer Securites and Qualifying Employe Real Property	10.00%
Percentage Of GE Securities of GE Penion Trust Assets	3.70%	3.80%
Maximum Percentage of Total GE Pension PLan assets that Can Be Sector Concentration of Assets	15.00%

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The percentage of qualifying employer securities and qualifying employer real property allowed to be held, per the investement policies and strategies.

+ References

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+ References

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- References

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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=58740216&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=58740216&loc=d3e1928-114920

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Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

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Target allocation minimum percentage 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 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

Reference 2: 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=58740216&loc=d3e2446-114920

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Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ 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)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

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