Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Cash and cash equivalents	$ 7,107	$ 7,075
Accounts receivable, net	11,500	10,653
Inventories and contracts in progress, net	9,081	8,135
Other assets, current	860	843
Total Current Assets	28,548	26,706
Customer financing assets	1,077	1,018
Future income tax benefits	1,765	1,961
Fixed assets	19,384	18,494
Less: Accumulated depreciation	10,395	9,762
Fixed assets, net	8,989	8,732
Goodwill	27,422	27,301
Intangible assets, net	15,800	15,603
Other assets	6,461	6,163
Total Assets	90,062	87,484
Short-term borrowings	871	926
Accounts payable	7,432	6,875
Accrued liabilities	12,634	14,638
Long-term debt currently due	1,604	179
Total Current Liabilities	22,541	22,618
Long-term debt	20,190	19,320
Future pension and postretirement benefit obligations	5,552	6,022
Other long-term liabilities	10,700	10,558
Total Liabilities	58,983	58,518
Commitments and contingent liabilities (Note 15)
Redeemable noncontrolling interest	315	122
Common Stock	17,213	16,033
Treasury Stock	32,584	30,907
Retained earnings	52,384	49,956
Unearned ESOP shares	97	105
Accumulated other comprehensive loss	(7,729)	(7,619)
Total Shareowners' Equity	29,187	27,358
Noncontrolling interest	1,577	1,486
Total Equity	30,764	28,844
Total Liabilities and Equity	$ 90,062	$ 87,484