Condensed Consolidated Statement of Cash Flows (USD $) In Millions | 9 Months Ended |
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Sep. 30, 2011 | Sep. 30, 2010 |
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| Operating Activities: | | | |
| Net income attributable to common shareowners | $ 3,654 | | $ 3,174 |
| Noncontrolling interest in subsidiaries' earnings | 298 | | 284 |
| Net income | 3,952 | | 3,458 |
| Adjustments to reconcile net income to net cash flows provided by operating activities: | | | |
| Depreciation and amortization | 1,023 | | 1,008 |
| Deferred income tax provision | 333 | | (123) |
| Stock compensation cost | 185 | | 112 |
| Change in: | | | |
| Accounts receivable | (546) | | (169) |
| Inventories and contracts in progress | (912) | | (932) |
| Other current assets | 3 | | (46) |
| Accounts payable and accrued liabilities | 762 | | 1,178 |
| Global pension contributions* | (247) | [1] | (699) |
| Other operating activities, net | 25 | | 443 |
| Net cash flows provided by operating activities | 4,578 | | 4,230 |
| Investing Activities: | | | |
| Capital expenditures | (605) | | (479) |
| Investments in businesses | (229) | | (2,551) |
| Dispositions of businesses | 384 | | 200 |
| Decrease (increase) in customer financing assets, net | 43 | | (29) |
| Other investing activities, net | 109 | | 173 |
| Net cash flows used in investing activities | (298) | | (2,686) |
| Financing Activities: | | | |
| (Repayment) issuance of long-term debt, net | (50) | | 610 |
| Increase in short-term borrowings, net | 1,124 | | 1,882 |
| Common Stock issued under employee stock plans | 196 | | 211 |
| Dividends paid on Common Stock | (1,192) | | (1,114) |
| Repurchase of Common Stock | (2,175) | | (1,644) |
| Other financing activities, net | (313) | | (253) |
| Net cash flows used in financing activities | (2,410) | | (308) |
| Effect of foreign exchange rate changes on cash and cash equivalents | 13 | | 46 |
| Net increase in cash and cash equivalents | 1,883 | | 1,282 |
| Cash and cash equivalents, beginning of year | 4,083 | | 4,449 |
| Cash and cash equivalents, end of period | 5,966 | | 5,731 |
| Defined Benefit Plan Disclosure [Line Items] | | | |
| Contributions to Defined Benefit Plans | $ 697 | | $ 949 |
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