Pensions and Other Benefit Plans (Details 8) (USD $) In Millions, unless otherwise specified	Dec. 28, 2014	Dec. 29, 2013
Retirement Plans [Member]
Amounts Recognized in Accumulated Other Comprehensive Income consist of the following:
Net actuarial loss	$ 7,547	$ 3,344
Prior service cost (credit)	(33)	26
Unrecognized net transition obligation	1	2
Total before tax effects	7,515	3,372
Accumulated Benefit Obligations - end of year	23,816	19,203
Other Benefit Plans [Member]
Amounts Recognized in Accumulated Other Comprehensive Income consist of the following:
Net actuarial loss	2,611	1,732
Prior service cost (credit)	(225)	(6)
Unrecognized net transition obligation	0	0
Total before tax effects	$ 2,386	$ 1,726

For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accumulated Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6503844

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (e)

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The pretax total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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The pretax net amount of gains and losses that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 10A

-Subparagraph (i)

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Amount related to the pretax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost.

+ References

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Before tax amount of net transition assets (obligations) which has yet to be recognized as a component of net periodic benefit cost.

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