FINANCIAL INSTRUMENTS (Marketable Securities) (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Marketable Securities [Line Items]
Marketable Securities, Amortized Cost	$ 6,476	$ 4,916
Marketable Securities, Unrealized Gain in Accumulated OCI	70	45
Marketable Securities, Unrealized Loss in Accumulated OCI	(5)	(12)
Marketable Securities, Fair Value	6,541	4,949
Fair Value Level 1 [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	403	780
Fair Value Level 1 [Member] \| U.S. Treasury Bills [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	403	404
Fair Value Level 1 [Member] \| U.S. Government Agency Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value		376
Fair Value Level 2 [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	6,027	4,059
Cash Equivalents, Fair Value	4,162	4,332
Fair Value Level 2 [Member] \| Certificates of Deposit [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	1,476	1,209
Fair Value Level 2 [Member] \| Corporate Debt Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	2,925	2,012
Fair Value Level 2 [Member] \| Commercial Paper [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	1,322	482
Fair Value Level 2 [Member] \| FDIC insured debt securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	304	356
Fair Value Level 3 [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	111	110
Fair Value Level 3 [Member] \| Auction Rate Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	92	91
Fair Value Level 3 [Member] \| Floating Rate Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	19	19
Certificates of Deposit [Member]
Marketable Securities [Line Items]
Marketable Securities, Amortized Cost	1,476	1,209
Marketable Securities, Fair Value	1,476	1,209
Corporate Debt Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Amortized Cost	2,875	1,996
Marketable Securities, Unrealized Gain in Accumulated OCI	53	26
Marketable Securities, Unrealized Loss in Accumulated OCI	(3)	(10)
Marketable Securities, Fair Value	2,925	2,012
Commercial Paper [Member]
Marketable Securities [Line Items]
Marketable Securities, Amortized Cost	1,322	482
Marketable Securities, Fair Value	1,322	482
FDIC insured debt securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Amortized Cost	302	353
Marketable Securities, Unrealized Gain in Accumulated OCI	2	3
Marketable Securities, Fair Value	304	356
U.S. Treasury Bills [Member]
Marketable Securities [Line Items]
Marketable Securities, Amortized Cost	400	400
Marketable Securities, Unrealized Gain in Accumulated OCI	3	4
Marketable Securities, Fair Value	403	404
U.S. Government Agency Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Amortized Cost		375
Marketable Securities, Unrealized Gain in Accumulated OCI		1
Marketable Securities, Fair Value		376
Auction Rate Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Amortized Cost	80	80
Marketable Securities, Unrealized Gain in Accumulated OCI	12	11
Marketable Securities, Fair Value	92	91
Available For Sale Securities Maturities After Ten Years, Fair Value	92
Floating Rate Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Amortized Cost	21	21
Marketable Securities, Unrealized Loss in Accumulated OCI	(2)	(2)
Marketable Securities, Fair Value	19	19
Corporate Debt Securities Treasury Bills Federal Deposit Insurance Corporation Debt Securities And Floating Rate Securities [Member]
Marketable Securities [Line Items]
Available For Sale Securities Maturities After One Through Five Years, Fair Value	2,727
Current Marketable Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	3,722	2,268
Noncurrent Marketable Securities [Member]
Marketable Securities [Line Items]
Marketable Securities, Fair Value	$ 2,819	$ 2,681

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

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