Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows - operation activities:
Net earnings	$ 1,451	$ 1,219
Non-cash items –
Share-based plans expense	50	51
Depreciation and amortization	471	443
Investment/asset impairment charges, net	23	33
Customer financing valuation benefit	7	(2)
Gain on dispositions, net	(2)	(4)
Other charges and credits, net	52	84
Changes in assets and liabilities –
Accounts receivable	(769)	(1,002)
Inventories, net of advances and progress billings	(31)	(56)
Accounts payable	616	960
Accrued liabilities	(613)	(467)
Advances and billings in excess of related costs	249	(435)
Income taxes receivable, payable and deferred	495	273
Other long-term liabilities	(72)	(116)
Pension and other postretirement plans	10	79
Customer financing, net	232	276
Other	(75)	(61)
Net cash provided by operating activities	2,094	1,275
Cash flows – investing activities:
Property, plant and equipment additions	(466)	(748)
Property, plant and equipment reductions	9	11
Contributions to investments	(605)	(204)
Proceeds from investments	803	493
Other	(3)	10
Net cash used by investing activities	(262)	(438)
Cash flows – financing activities:
New borrowings	872	115
Debt repayments	(34)	(128)
Stock options exercised	174	42
Employee taxes on certain share-based payment arrangements	(107)	(76)
Common shares repurchased	(2,500)	(3,501)
Dividends paid	(868)	(717)
Net cash used by financing activities	(2,463)	(4,265)
Effect of exchange rate changes on cash and cash equivalents	20	12
Net decrease in cash and cash equivalents	(611)	(3,416)
Cash and cash equivalents at beginning of year	8,801	11,302
Cash and cash equivalents at end of period	$ 8,190	$ 7,886