Pensions and Other Benefit Plans (Details 6) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value - End of year	$ 22,575	$ 20,901
Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value - beginning of year	20,901	17,536
Actual return on plan assets	2,078	3,573
Company contributions	1,176	565
Plan participant contributions	59	54
Settlements	(40)	(4)
Divestitures & acquisitions	(109)	9
Benefits paid from plan assets	(813)	(751)
Effect of exchange rates	(677)	(81)
Plan assets at fair value - End of year	22,575	20,901
Funded status — end of year	(4,314)	(587)
Other Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets at fair value - beginning of year	87	122
Actual return on plan assets	8	15
Company contributions	477	323
Plan participant contributions	0	0
Settlements	0	0
Divestitures & acquisitions	0	0
Benefits paid from plan assets	(493)	(373)
Effect of exchange rates	0	0
Plan assets at fair value - End of year	79	87
Funded status — end of year	$ (5,002)	$ (4,320)

The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Actual Return on Plan Assets (Component of Net Periodic Postretirement Benefit Cost)

-URI http://asc.fasb.org/extlink&oid=6504192

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

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-Publisher FASB

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-Glossary Actual Return on Plan Assets (Component of Net Periodic Pension Cost)

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Postretirement Benefits

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The increase in the fair value of plan assets from contributions made by the employer.

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The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets.

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The amount of decrease in the plan assets attributed to the sale, liquidation, spin-off or other divestiture of a corporate division or subsidiary.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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The amount of increase or decrease in plan assets attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.

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The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.

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The amount that relates to an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts.

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