Condensed Consolidated Statement of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
Operating Activities:
Net income attributable to common shareowners	$ 2,330,000,000		$ 1,976,000,000
Noncontrolling interest in subsidiaries' earnings	201,000,000		183,000,000
Net income	2,531,000,000		2,159,000,000
Adjustments to reconcile net income to net cash flows provided by operating activities:
Depreciation and amortization	677,000,000		666,000,000
Deferred income tax provision	292,000,000		128,000,000
Stock compensation cost	128,000,000		88,000,000
Change in:
Accounts receivable	(624,000,000)		(552,000,000)
Inventories and contracts in progress	(829,000,000)		(653,000,000)
Other current assets	(7,000,000)		(26,000,000)
Accounts payable and accrued liabilities	524,000,000		834,000,000
Global pension contributions*	(70,000,000)	[1]	(261,000,000)
Other operating activities, net	(3,000,000)		171,000,000
Net cash flows provided by operating activities	2,619,000,000		2,554,000,000
Investing Activities:
Capital expenditures	(390,000,000)		(302,000,000)
Investments in businesses	(184,000,000)		(2,368,000,000)
Dispositions of businesses	147,000,000		132,000,000
Decrease (increase) in customer financing assets, net	29,000,000		(28,000,000)
Other investing activities, net	91,000,000		207,000,000
Net cash flows used in investing activities	(307,000,000)		(2,359,000,000)
Financing Activities:
(Repayment) issuance of long-term debt, net	(60,000,000)		1,106,000,000
Increase in short-term borrowings, net	1,156,000,000		1,174,000,000
Common Stock issued under employee stock plans	168,000,000		162,000,000
Dividends paid on Common Stock	(781,000,000)		(744,000,000)
Repurchase of Common Stock	(1,500,000,000)		(1,150,000,000)
Other financing activities, net	(92,000,000)		(143,000,000)
Net cash flows (used in) provided by financing activities	(1,109,000,000)		405,000,000
Effect of foreign exchange rate changes on cash and cash equivalents	110,000,000		(52,000,000)
Net increase in cash and cash equivalents	1,313,000,000		548,000,000
Cash and cash equivalents, beginning of year	4,083,000,000		4,449,000,000
Cash and cash equivalents, end of period	5,396,000,000		4,997,000,000
Domestic Defined Benefit Plan Stock Contributions By Employer	$ 0		$ 250,000,000

[1] * Non-cash activities include contributions of UTC common stock of $250 million to domestic defined benefit pension plans in the second quarter of 2010. There were no contributions of UTC common stock in 2011.