Business Acquisition and Dispositions - Narrative (Details) - USD ($) $ in Millions		1 Months Ended
	Jul. 03, 2017	Jul. 31, 2019	Oct. 31, 2018	Oct. 01, 2018
GE Transaction Agreement
Business Acquisition [Line Items]
Consideration transferred	$ 24,798
Recip [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Sales price		$ 77
Natural Gas Solutions (NGS) | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Sales price				$ 375
Other non operating income (loss)			$ 171
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Business Acquisition [Line Items]
Other non operating income (loss)		$ 138