v2.4.0.6
Pension, Retiree Medical and Savings Plans (Categorized Plan Assets Measured at Fair Value) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended 12 Months Ended
Dec. 29, 2012
U.S. Plan Assets [Member]
Dec. 31, 2011
U.S. Plan Assets [Member]
Dec. 29, 2012
International Plan Assets [Member]
Dec. 31, 2011
International Plan Assets [Member]
Dec. 29, 2012
Retiree Medical Plan [Member]
Dec. 31, 2011
Retiree Medical Plan [Member]
Dec. 25, 2010
Retiree Medical Plan [Member]
Dec. 29, 2012
Level 3 [Member]
Dec. 31, 2011
Level 3 [Member]
Dec. 29, 2012
U.S. Common Stock [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
U.S. Common Stock [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
U.S. Common Stock [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
U.S. Common Stock [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
U.S. Common Stock [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
U.S. Commingled Funds [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
U.S. Commingled Funds [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
U.S. Commingled Funds [Member]
International Plan Assets [Member]
Dec. 31, 2011
U.S. Commingled Funds [Member]
International Plan Assets [Member]
Dec. 29, 2012
U.S. Commingled Funds [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
U.S. Commingled Funds [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
U.S. Commingled Funds [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
U.S. Commingled Funds [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
U.S. Commingled Funds [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
U.S. Commingled Funds [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
International Common Stock [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
International Common Stock [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
International Common Stock [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
International Common Stock [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
International Common Stock [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
International Commingled Fund [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
International Commingled Fund [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
International Commingled Fund [Member]
International Plan Assets [Member]
Dec. 31, 2011
International Commingled Fund [Member]
International Plan Assets [Member]
Dec. 29, 2012
International Commingled Fund [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
International Commingled Fund [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
International Commingled Fund [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
International Commingled Fund [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
International Commingled Fund [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
International Commingled Fund [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Preferred Stock [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
Preferred Stock [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Preferred Stock [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Preferred Stock [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Preferred Stock [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Government Securities [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
Government Securities [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Government Securities [Member]
International Plan Assets [Member]
Dec. 31, 2011
Government Securities [Member]
International Plan Assets [Member]
Dec. 29, 2012
Government Securities [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Government Securities [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Government Securities [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Government Securities [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Government Securities [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Government Securities [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Corporate Bonds [Member]
Dec. 31, 2011
Corporate Bonds [Member]
Dec. 29, 2012
Corporate Bonds [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
Corporate Bonds [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Corporate Bonds [Member]
International Plan Assets [Member]
Dec. 31, 2011
Corporate Bonds [Member]
International Plan Assets [Member]
Dec. 29, 2012
Corporate Bonds [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Corporate Bonds [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Corporate Bonds [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Corporate Bonds [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Corporate Bonds [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Corporate Bonds [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Mortgage-Backed Securities [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
Mortgage-Backed Securities [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Mortgage-Backed Securities [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Mortgage-Backed Securities [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Mortgage-Backed Securities [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Contracts With Insurance Companies [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
Contracts With Insurance Companies [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Contracts With Insurance Companies [Member]
International Plan Assets [Member]
Dec. 31, 2011
Contracts With Insurance Companies [Member]
International Plan Assets [Member]
Dec. 29, 2012
Contracts With Insurance Companies [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Contracts With Insurance Companies [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Contracts With Insurance Companies [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Contracts With Insurance Companies [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Contracts With Insurance Companies [Member]
Level 3 [Member]
Dec. 31, 2011
Contracts With Insurance Companies [Member]
Level 3 [Member]
Dec. 29, 2012
Contracts With Insurance Companies [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Contracts With Insurance Companies [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Real Estate [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
Real Estate [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Real Estate [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Real Estate [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Real Estate [Member]
Level 3 [Member]
Dec. 31, 2011
Real Estate [Member]
Level 3 [Member]
Dec. 29, 2012
Real Estate [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Cash And Cash Equivalents [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
Cash And Cash Equivalents [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Cash And Cash Equivalents [Member]
International Plan Assets [Member]
Dec. 31, 2011
Cash And Cash Equivalents [Member]
International Plan Assets [Member]
Dec. 29, 2012
Cash And Cash Equivalents [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Cash And Cash Equivalents [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Cash And Cash Equivalents [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Cash And Cash Equivalents [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Cash And Cash Equivalents [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Cash And Cash Equivalents [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Sub-Total U.S. Plan Assets [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
Sub-Total U.S. Plan Assets [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Sub-Total U.S. Plan Assets [Member]
Level 1 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Sub-Total U.S. Plan Assets [Member]
Level 2 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Sub-Total U.S. Plan Assets [Member]
Level 3 [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Fixed Income Commingled Funds [Member]
International Plan Assets [Member]
Dec. 31, 2011
Fixed Income Commingled Funds [Member]
International Plan Assets [Member]
Dec. 29, 2012
Fixed Income Commingled Funds [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Fixed Income Commingled Funds [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Fixed Income Commingled Funds [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Currency Commingled Funds [Member]
International Plan Assets [Member]
Dec. 31, 2011
Currency Commingled Funds [Member]
International Plan Assets [Member]
Dec. 29, 2012
Currency Commingled Funds [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Currency Commingled Funds [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Currency Commingled Funds [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Other Commingled Fund [Member]
International Plan Assets [Member]
Dec. 31, 2011
Other Commingled Fund [Member]
International Plan Assets [Member]
Dec. 29, 2012
Other Commingled Fund [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Other Commingled Fund [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Other Commingled Fund [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Sub-Total International Plan Assets [Member]
International Plan Assets [Member]
Dec. 31, 2011
Sub-Total International Plan Assets [Member]
International Plan Assets [Member]
Dec. 29, 2012
Sub-Total International Plan Assets [Member]
Level 1 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Sub-Total International Plan Assets [Member]
Level 2 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Sub-Total International Plan Assets [Member]
Level 3 [Member]
International Plan Assets [Member]
Dec. 29, 2012
Dividends And Interest Receivable [Member]
U.S. Plan Assets [Member]
Dec. 31, 2011
Dividends And Interest Receivable [Member]
U.S. Plan Assets [Member]
Dec. 29, 2012
Dividends And Interest Receivable [Member]
International Plan Assets [Member]
Dec. 31, 2011
Dividends And Interest Receivable [Member]
International Plan Assets [Member]
Dec. 29, 2012
Large-Cap Fund(s) In U.S. Commingled Funds [Member]
Dec. 31, 2011
Large-Cap Fund(s) In U.S. Commingled Funds [Member]
Defined Benefit Plan Disclosure [Line Items]                                                                                                                                                                                                                                                                      
Representation of one fund in total U.S. plan assets                                                                                                             22.00% 24.00%                                                                                                                                                   25.00% 30.00%
Fair value of plan assets $ 11,182 [1] $ 9,262 [1] $ 2,463 $ 2,031 $ 365 $ 190 $ 190 $ 453 $ 110 $ 626 [1],[2] $ 514 [1],[2] $ 626 [1],[2]    [1],[2]    [1],[2] $ 3,106 [1],[3] $ 3,003 [1],[3] $ 278 [3] $ 246 [3]    [1],[3]    [3] $ 3,106 [1],[3] $ 278 [3]    [1],[3]    [3] $ 1,597 [1],[2] $ 1,089 [1],[2] $ 1,597 [1],[2]    [1],[2]    [1],[2] $ 948 [1],[4] $ 776 [1],[4] $ 863 [4] $ 729 [4]    [1],[4]    [4] $ 948 [1],[4] $ 863 [4]    [1],[4]    [4] $ 20 [1],[5] $ 19 [1],[5]    [1],[5] $ 20 [1],[5]    [1],[5] $ 1,287 [1],[5] $ 1,032 [1],[5] $ 202 [5] $ 171 [5]    [1],[5]    [5] $ 1,287 [1],[5] $ 202 [5]    [1],[5]    [5]     $ 2,962 [1],[5],[6] $ 2,653 [1],[5],[6] $ 230 [5] $ 196 [5]    [1],[5],[6]    [5] $ 2,962 [1],[5],[6] $ 230 [5]    [1],[5],[6]    [5] $ 110 [1],[5] $ 24 [1],[5]    [1],[5] $ 110 [1],[5]    [1],[5] $ 27 [1],[7] $ 24 [1],[7] $ 35 [7] $ 30 [7]    [1],[7]    [7]    [1],[7]    [7] $ 62 $ 54 $ 27 [1],[7] $ 35 [7] $ 331 [1],[8]    [1],[8]    [1],[8]    [1],[8] $ 391 $ 56 $ 331 [1],[8] $ 117 [1] $ 78 [1] $ 125 $ 16 $ 117 [1] $ 125    [1]       [1]    $ 11,131 [1] $ 9,212 [1] $ 2,340 [1] $ 8,433 [1] $ 358 [1] $ 600 [9] $ 530 [9]    [9] $ 600 [9]    [9] $ 64 [10] $ 52 [10]    [10] $ 64 [10]    [10] $ 60 [8] $ 56 [8]    [8]    [8] $ 60 [8] $ 2,457 $ 2,026 $ 125 $ 2,237 $ 95 $ 51 [1] $ 50 [1] $ 6 $ 5    
Retiree medical plan assets         $ 365 $ 190                                                                                                                                                                                                                                                          
[1] 2012 and 2011 amounts include $365 million and $190 million, respectively, of retiree medical plan assets that are restricted for purposes of providing health benefits for U.S. retirees and their beneficiaries.
[2] Based on quoted market prices in active markets.
[3] Based on the fair value of the investments owned by these funds that track various U.S. large, mid-cap and small company indices. Includes one large-cap fund that represents 25% and 30%, respectively, of total U.S. plan assets for 2012 and 2011.
[4] Based on the fair value of the investments owned by these funds that track various non-U.S. equity indices.
[5] Based on quoted bid prices for comparable securities in the marketplace and broker/dealer quotes that are not observable.
[6] Corporate bonds of U.S.-based companies represent 22% and 24%, respectively, of total U.S. plan assets for 2012 and 2011.
[7] Based on the fair value of the contracts as determined by the insurance companies using inputs that are not observable.
[8] Based on the appraised value of the investments owned by these funds as determined by independent third parties using inputs that are not observable.
[9] Based on the fair value of the investments owned by these funds that track various government and corporate bond indices.
[10] Based on the fair value of the investments owned by these funds. Includes managed hedge funds that invest primarily in derivatives to reduce currency exposure.