Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Cash and cash equivalents	$ 9,345	$ 7,157
Accounts receivable, net	12,597	11,481
Inventories and contracts in progress, net	9,860	8,704
Other assets, current	1,027	1,208
Total Current Assets	32,829	28,550
Customer financing assets	1,701	1,398
Future income tax benefits	1,817	1,809
Fixed assets	20,309	19,469
Less: Accumulated depreciation	10,834	10,311
Fixed assets, net	9,475	9,158
Goodwill	27,587	27,059
Intangible assets, net	15,881	15,684
Other assets	5,503	6,048
Total Assets	94,793	89,706
Short-term borrowings	682	601
Accounts payable	8,542	7,483
Accrued liabilities	12,634	12,219
Long-term debt currently due	2,061	1,603
Total Current Liabilities	23,919	21,906
Long-term debt	23,883	21,697
Future pension and postretirement benefit obligations	5,249	5,612
Other long-term liabilities	11,181	11,026
Total Liabilities	64,232	60,241
Commitments and contingent liabilities (Note 15)
Redeemable noncontrolling interest	406	296
Common Stock	17,372	17,285
Treasury Stock	35,516	34,150
Retained earnings	54,640	52,873
Unearned ESOP shares	90	95
Accumulated other comprehensive loss	(7,964)	(8,334)
Total Shareowners' Equity	28,442	27,579
Noncontrolling interest	1,713	1,590
Total Equity	30,155	29,169
Total Liabilities and Equity	$ 94,793	$ 89,706