Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 884	$ 818
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	273	251
Deferred income taxes	(9)	(85)
Equity income in unconsolidated affiliate	(23)	(14)
Dividend from unconsolidated affiliate	45	17
Other, net	33	5
Change in operating assets and liabilities, net of acquisitions:
Receivables	(379)	(205)
Inventories	(363)	29
Costs in excess of billings	316	(62)
Prepaid and other current assets	(110)	(6)
Accounts payable	88	13
Billings in excess of costs	267	(636)
Other assets/liabilities, net	(135)	157
Net cash provided by operating activities	887	282
Cash flows from investing activities:
Purchases of property, plant and equipment	(192)	(78)
Business acquisitions, net of cash acquired	(259)	(62)
Dividend from unconsolidated affiliate	13	16
Other	14	16
Net cash used in investing activities	(424)	(108)
Cash flows from financing activities:
Repayments on debt	(372)	(9)
Cash dividends paid	(93)	(84)
Proceeds from stock options exercised	71	8
Other, net	16	3
Net cash used in financing activities	(378)	(82)
Effect of exchange rates on cash	22	(26)
Increase in cash and cash equivalents	107	66
Cash and cash equivalents, beginning of period	3,333	2,622
Cash and cash equivalents, end of period	3,440	2,688
Cash payments during the period for:
Interest	30	28
Income taxes	$ 712	$ 262