Acquisitions and Dispositions (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) shares $ / shares	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Business Acquisition, Equity Interests Issued or Issuable [Line Items]
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current	$ 1,206
Stock conversion rate | shares	1.12
Cash Consideration | $ / shares	$ 19.00
Total Share Consideration | shares	492,000,000
Total cash consideration	$ 8,300
Senior Notes, Noncurrent	7,500
Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Maximum Amount	$ 2,500
Debt Instrument, Redemption Price, Percentage	101.00%
Senior unsecured bridge facility	$ 1,100	$ 8,600
Baker Hughes Contract Termination Fee	3,500
Disposal Group, Including Discontinued Operation, Revenue	2,600	3,600	$ 3,600
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, before Income Tax	460	391	$ 422
Disposal Group, Including Discontinued Operation, Depreciation and Amortization	244
Disposal Group, Including Discontinued Operation, Inventory, Current	576
Disposal Group, Including Discontinued Operation, Goodwill, Current	276
Disposal Group, Including Discontinued Operation, Intangible Assets, Current	57
Disposal Group, Including Discontinued Operation, Assets, Current	2,115	$ 0
Disposal Group, Including Discontinued Operation, Postretirement Plan Benefit Obligation, Current	46
Disposal Group, Including Discontinued Operation, Liabilities, Current	46
Disposal Group, Including Discontinued Operation, Other Assets, Current	$ 103