As of the reporting date, the carrying amount of noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. The noncontrolling interest holder's ownership (or holders' ownership) may be in the form of common shares (regardless of class), limited partnership units (regardless of class), non-preferential membership interests, or any other form of common equity regardless of investee entity legal form.

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The aggregate amount to be paid by the entity upon redemption of the security that is classified as temporary equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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Redeemable Noncontrolling Interest (Narrative) (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Feb. 25, 2010 Fortune Tobacco Corporation [Member]	Feb. 25, 2010 Fortune Tobacco Corporation [Member] Agreed Upon Value to Sell Between February 2015 And February 2018 [Member]
Business Acquisitions [Line Items]
Business combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			$ 1,170,000,000
Redeemable noncontrolling interest	1,323,000,000	1,301,000,000
Temporary Equity, Redemption Value				$ 1,170,000,000