Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash Flows from Operating Activities:
Net income	$ 924	$ 1,503
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	473	458
Amortization of purchased intangibles	9	7
Cash received from settlement of insurance claims		66
Stock compensation charges	40	45
Earnings of affiliated companies less than (in excess of) dividends received	44	(437)
Deferred tax provision	21	96
Employee benefit payments (in excess of) less than expense	(33)	68
Changes in certain working capital items:
Trade accounts receivable	(68)	(243)
Inventories	(35)	(143)
Other current assets	(54)	(42)
Accounts payable and other current liabilities, net of restructuring payments	(45)	(43)
Other, net	56	(216)
Net cash provided by operating activities	1,332	1,119
Cash Flows from Investing Activities:
Capital expenditures	(853)	(1,026)
Acquisition of business, net of cash received		(148)
Investment in affiliates	(111)
Short-term investments - acquisitions	(1,168)	(1,845)
Short-term investments - liquidations	989	1,852
Other, net	4	5
Net cash used in investing activities	(1,139)	(1,162)
Cash Flows from Financing Activities:
Net repayments of short-term borrowings and current portion of long-term debt	(13)	(12)
Principal payments under capital lease obligations	(1)	(32)
Proceeds from issuance of long-term debt, net	886
Payments to settle interest rate hedges	(18)
Proceeds from the exercise of stock options	19	73
Repurchases of common stock for treasury	(386)
Dividends paid	(227)	(158)
Net cash provided by (used in) financing activities	260	(129)
Effect of exchange rates on cash	(106)	183
Net increase in cash and cash equivalents	347	11
Cash and cash equivalents at beginning of period	4,661	4,598
Cash and cash equivalents at end of period	$ 5,008	$ 4,609