Commitments, Guarantees, Product Warranties and Other Loss Contingencies (Legacy and Environmental Matters) (Details) € in Millions, $ in Millions		12 Months Ended
	Nov. 02, 2015	Dec. 31, 2016 EUR (€)	Dec. 31, 2014 USD ($)
Commitments, Guarantees and Product Warranties [Abstract]
Business Acquisition Effective Date Of Acquisition	Nov. 02, 2015
Business Acquisition Name Of Acquired Entity	Thermal, Renewables and Grid businesses
Loss Contingency [Abstract]
Loss contingency lawsuit filing date		Jan-07
Loss contingency name of plaintiff		European Commission
Loss contingency name of defendant		Alstom	for this push
Loss contingency allegations		participating in a gas insulated switchgear cartel from 1988-2004	multiple violations of the Foreign Corrupt Practices Act
Initial amount of fine		€ 65
Final amount of fine paid		€ 59
Settlement amount | $			$ 772
Settlement agreement date			Dec-14
Reserves for environmental remediation	1772000000