Fair Value of Financial Instruments (Details) (Unaudited) (USD $)	6 Months Ended
Jun. 30, 2011	Dec. 31, 2010
Investments in Marketable Securities [Abstract]
Fair value of marketable securities in prepaid expenses and other current assets	$ 2,000,000	$ 68,000,000
Fair value of marketable securities in miscellaneous other assets	242,000,000	262,000,000
Proceeds from Sale of Securities	69,000,000
Realized gain from the sale of marketable securities	3,000,000
Derivative Financial Instruments and Hedging Activities [Abstract]
Notional value of interest rate swaps	0	200,000,000
Notional value of foreign currency purchase forward contracts	44,000,000	40,000,000
Notional value of foreign currency sale forward contracts	124,000,000	86,000,000
Notional value of foreign currency purchase forward contracts not designated as hedging instruments	7,000,000	8,000,000
Notional value of foreign currency sale forward contracts not designated as hedging instruments	93,000,000	75,000,000
Cash Surrender Value of Life Insurance Policies [Abstract]
Cash surrender value of life insurance policies	263,000,000	257,000,000
Long-Term Debt [Abstract]
Carrying values of long-term debt	4,000,000,000	4,700,000,000
Fair values of long-term debt	4,400,000,000	5,100,000,000
Face amount of debt	$ 750,000,000
Stated interest rate	7.125%

Cash Surrender Value Life Insurance Policies.

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Aggregate notional amount of foreign currency derivatives, not designated as hedging instruments, to purchase a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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Aggregate notional amount of foreign currency derivatives, not designated as hedging instruments, to sell a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer.

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The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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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.

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Interest rate stated in the contractual debt agreement.

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Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale which are intended to be held for less than one year or the normal operating cycle, whichever is longer.

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Total debt and equity financial instruments including: (1) securities held-to-maturity and (2) securities available-for-sale that will be held for the long-term.

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This item represents the total realized gain (loss) included in earnings for the period as a result of selling marketable securities categorized as trading, available-for-sale, or held-to-maturity. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

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Aggregate notional amount of foreign currency derivatives to purchase a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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Aggregate notional amount of foreign currency derivatives to sell a foreign currency. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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Aggregate notional amount of all interest rate derivatives designated as hedging instruments in fair value hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

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The cash inflow associated with the sale of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time).

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