CONDENSED CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	Mar. 21, 2015	Dec. 27, 2014
Accounts and notes receivable, allowance	$ 137	$ 137
Preferred Stock, no par value
Common stock, Par value	$ 0.0167	$ 0.0167
Common stock, Authorized	3,600us-gaap_CommonStockSharesAuthorized	3,600us-gaap_CommonStockSharesAuthorized
Common stock, Issued	1,479us-gaap_CommonStockSharesIssued	1,488us-gaap_CommonStockSharesIssued
Repurchased common stock, shares	387us-gaap_TreasuryStockShares	378us-gaap_TreasuryStockShares

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Face amount or stated value per share of common stock.

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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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- Definition

Face amount per share of no-par value preferred stock nonredeemable or redeemable solely at the option of the issuer.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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