Condensed Consolidated Statement of Cash Flows Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended		6 Months Ended		12 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Cash flows - operation activities:
Net earnings		$ 2,196	$ 1,749	$ 4,673	$ 3,328
Non-cash items -
Share-based plans expense				98	98
Depreciation and amortization				1,008	956
Asset Impairment Charges				44	46
Customer financing valuation (benefit)/expense				(2)	5
Gain/(loss) on dispositions, net		3	(2)	7
Other charges and credits, net				(112)	(135)
Changes in assets and liabilities -
Accounts receivable				(62)	163
Unbilled receivables				1,675	950
Advances and progress billings				2,931	3,916
Inventories				(408)	1,036
Other current assets				(2)	148
Accounts payable				682	419
Accrued liabilities				(922)	(570)
Income taxes receivable, payable and deferred				269	774
Other long-term liabilities				(65)	(18)
Pension and other postretirement plans				(57)	13
Customer financing, net				97	(342)
Other				(352)	100
Net cash provided by operating activities				7,816	7,047
Cash flows - investing activities:
Payments to Acquire Property, Plant, and Equipment				770	905
Property, plant and equipment reductions				41	25
Contributions to investments				1,537	1,820
Proceeds from investments				1,028	1,441
Purchase of distribution rights				(56)	(131)
Other				(1)	7
Net cash provided/(used) by investing activities				(1,295)	(1,383)
Cash flows - financing activities:
New borrowings				3,648	874
Debt repayments				2,708	56
Contributions from noncontrolling interests				20
Stock options exercised				61	240
Employee taxes on certain share-based payment arrangements				236	112
Common shares repurchased				5,965	5,000
Dividends paid				1,997	1,720
Net cash used by financing activities				(7,177)	(5,774)
Effect of exchange rate changes on cash and cash equivalents, including restricted				(36)	52
Net decrease in cash & cash equivalents, including restricted				(692)	(58)
Cash & cash equivalents, including restricted, at beginning of year				8,887	8,869	$ 8,869
Cash & cash equivalents, including restricted, at end of period		8,195	8,811	8,195	8,811	8,887
Restricted Cash and Cash Equivalents	[1]	(74)	(74)	(74)	(74)	(74)
Cash and cash equivalents at end of period		$ 8,121	$ 8,737	$ 8,121	$ 8,737	$ 8,813

[1] Reflects amounts restricted in support of our workers’ compensation programs, employee benefit programs, and insurance premiums.