Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows from Operating Activities:
Net income	$ 1,445	$ 2,314
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	717	699
Amortization of purchased intangibles	13	11
Cash received from settlement of insurance claims		66
Stock compensation charges	56	66
Earnings of affiliated companies in excess of dividends received	(140)	(686)
Deferred tax provision	44	118
Employee benefit payments less than expense		105
Changes in certain working capital items:
Trade accounts receivable	(149)	(182)
Inventories	(31)	(170)
Other current assets	(65)	(49)
Accounts payable and other current liabilities, net of restructuring payments	(42)	(107)
Other, net	118	(153)
Net cash provided by operating activities	1,966	2,032
Cash Flows from Investing Activities:
Capital expenditures	(1,275)	(1,666)
Acquisition of business, net of cash received		(148)
Investment in affiliates	(111)
Short-term investments - acquisitions	(1,859)	(2,193)
Short-term investments - liquidations	1,618	2,426
Other, net	6	1
Net cash used in investing activities	(1,621)	(1,580)
Cash Flows from Financing Activities:
Net repayments of short-term borrowings and current portion of long-term debt	(24)	(22)
Principal payments under capital lease obligations	(1)	(32)
Proceeds from issuance of long-term debt, net	1,030	34
Payments to settle interest rate hedges	(18)
Proceeds from the exercise of stock options	26	82
Repurchases of common stock for treasury	(580)
Dividends paid	(339)	(237)
Net cash provided by (used in) financing activities	94	(175)
Effect of exchange rates on cash	(148)	26
Net increase in cash and cash equivalents	291	303
Cash and cash equivalents at beginning of period	4,661	4,598
Cash and cash equivalents at end of period	$ 4,952	$ 4,901