Property, Plant and Equipment (Narratives) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | 12 Months Ended | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2015 |
Sep. 30, 2014 |
Sep. 30, 2015 |
Sep. 30, 2014 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Dec. 31, 2012 |
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Property, Plant and Equipment | ||||||||||
Original cost | $ 87,332 | $ 87,332 | $ 84,070 | |||||||
Accumulated depreciation and amortization | (36,628) | (36,628) | (35,734) | |||||||
Depreciation and amortization | 1,278 | $ 1,424 | 3,603 | $ 3,820 | $ 3,674 | |||||
Property, Plant and Equipment, Net | [1] | 50,704 | 50,704 | 48,336 | ||||||
Subsidiaries GECC [Member] | ||||||||||
Property, Plant and Equipment | ||||||||||
Impairment of Long-Lived Assets Held-for-use | 0 | $ 0 | ||||||||
Amortization of Leased Asset | 1,668 | 1,773 | $ 1,789 | |||||||
Property, Plant and Equipment, Net | [1] | $ 34,516 | $ 34,516 | 31,519 | ||||||
Equipment Leased to Other Party [Member] | ||||||||||
Property, Plant and Equipment | ||||||||||
Original cost | 0 | 0 | ||||||||
Accumulated depreciation and amortization | $ 0 | $ 0 | ||||||||
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