Financial Instruments (Fair Values Of Financial Assets And Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011		Dec. 25, 2010
Derivatives, Fair Value [Line Items]
Available-for-sale securities	$ 59	[1],[2]	$ 636	[1],[2]
Short-term investments - index funds, at fair value	157	[1],[3]	167	[1],[3]
Prepaid forward contracts	40	[1],[4]	48	[1],[4]
Deferred compensation	519	[1],[5]	559	[1],[5]
Total asset derivatives at fair value	462	[1]	398	[1]
Total liability derivatives at fair value	375	[1]	114	[1]
Total Financial Assets at Fair Value	718	[1]	1,249	[1]
Total Financial Liabilities at Fair Value	894	[1]	673	[1]
Derivatives Designated As Fair Value Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Interest rate derivatives	300	[1],[6]	276	[1],[6]
Derivatives Designated As Fair Value Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Interest rate derivatives		[1],[6]	7	[1],[6]
Derivatives Designated As Cash Flow Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Forward exchange contracts	25	[1],[7]	8	[1],[7]
Interest rate derivatives		[1],[6]	8	[1],[6]
Commodity contracts - other	3	[1],[8]	70	[1],[8]
Commodity contracts - futures		[1],[9]	1	[1],[9]
Derivatives designated as hedging instruments, Assets, Total	28	[1]	87	[1]
Derivatives Designated As Cash Flow Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Forward exchange contracts	5	[1],[7]	23	[1],[7]
Interest rate derivatives	69	[1],[6]	5	[1],[6]
Commodity contracts - other	77	[1],[8]	2	[1],[8]
Commodity contracts - futures	1	[1],[9]	23	[1],[9]
Derivatives designated as hedging instruments, Liabilities, Total	152	[1]	53	[1]
Derivatives Not Designated As Hedging Instruments Assets [Member]
Derivatives, Fair Value [Line Items]
Forward exchange contracts	17	[1],[7]	1	[1],[7]
Interest rate derivatives	107	[1],[6]	6	[1],[6]
Commodity contracts - other	10	[1],[8]	28	[1],[8]
Commodity contracts - futures		[1],[9]		[1],[9]
Derivatives not designated as hedging instruments, Assets, Total	134	[1]	35	[1]
Derivatives Not Designated As Hedging Instruments Liabilities [Member]
Derivatives, Fair Value [Line Items]
Forward exchange contracts	20	[1],[7]	7	[1],[7]
Interest rate derivatives	141	[1],[6]	45	[1],[6]
Commodity contracts - other	51	[1],[8]	1	[1],[8]
Commodity contracts - futures	11	[1],[9]	1	[1],[9]
Derivatives not designated as hedging instruments, Liabilities, Total	223	[1]	54	[1]
Level 1 Fair Values Of Assets And Liabilities [Member]
Derivatives, Fair Value [Line Items]
Deferred compensation	$ 44		$ 170

[1] Financial assets are classified on our balance sheet within prepaid expenses and other current assets and other assets, with the exception of available-for-sale securities and short-term investments, which are classified as short-term investments. Financial liabilities are classified on our balance sheet within accounts payable and other current liabilities and other liabilities. Unless specifically indicated, all financial assets and liabilities are categorized as Level 2 assets or liabilities.

[2] Based on the price of common stock. Categorized as a Level 1 asset.

[3] Based on price changes in index funds used to manage a portion of market risk arising from our deferred compensation liability. Categorized as a Level 1 asset.

[4] Based primarily on the price of our common stock.

[5] Based on the fair value of investments corresponding to employees' investment elections. As of December 31, 2011 and December 25, 2010, $44 million and $170 million, respectively, are categorized as Level 1 liabilities. The remaining balances are categorized as Level 2 liabilities.

[6] Based on LIBOR and recently reported transactions in the marketplace.

[7] Based on observable market transactions of spot and forward rates.

[8] Based on recently reported transactions in the marketplace, primarily swap arrangements.

[9] Based on average prices on futures exchanges. Categorized as a Level 1 asset or liability.