Pension, Postretirement and Postemployment Benefits, End of Fair Value Measurement (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Defined Benefit And Other Postretirement Benefit Plans [Line Items]
Fair value measurements, level 3 activity, purchases		$ 0
International Plans [Member]
Expected benefit payments under defined benefit pension plans and postretirement benefit plan for next five years [Abstract]
2015	1,834
2016	1,881
2017	2,062
2018	2,285
2019	2,440
2020-2024	16,135
Projected benefit obligation	147,528	112,460
Fair value of plan assets	102,375	85,335
Expected amortization of unrecognized transition obligation in next fiscal year	3
Pension [Member]
Defined Benefit And Other Postretirement Benefit Plans [Line Items]
Fair value measurements, level 3 activity, purchases	400
Fair value measurement, level 3 activity, capital distributions	10,800
Fair value measurement, level 3 activity, unrealized gain on plan assets still held	2,900
Fair Value Measurement With Unobservable Inputs Reconciliation Asset Gain Loss On Assets Sold	3,400
Shared long-term total return goal on plan assets (in hundredths)	7.00%	7.00%	7.00%
Components of net periodic cost [Abstract]
Service cost	1,824	2,579	1,784
Interest cost	16,209	15,597	16,669
Expected return on assets	(18,631)	(17,761)	(18,097)
Amortization of prior service cost	98	98	157
Amortization of actuarial loss	3,351	7,070	6,221
Curtailment/settlement losses	0	6,993	672
Net periodic benefit cost	2,851	14,576	7,406
Assumptions used to determine net periodic benefit cost of pension plan and postretirement plan [Abstract]
Weighted average discount rate	5.02%	4.49%	4.96%
Long-term rate of return on plan assets	7.00%	7.00%	7.00%
Expected benefit payments under defined benefit pension plans and postretirement benefit plan for next five years [Abstract]
2015	19,838
2016	19,899
2017	20,632
2018	21,361
2019	21,822
2020-2024	116,138
Projected benefit obligation	383,068	332,774	391,681
Fair value of plan assets	272,010	273,337	273,575
Postretirement [Member]
Components of net periodic cost [Abstract]
Service cost	543	750	735
Interest cost	1,337	1,380	1,758
Amortization of actuarial loss	(457)	(264)	80
Net periodic benefit cost	1,423	1,866	2,573
Assumptions used to determine net periodic benefit cost of pension plan and postretirement plan [Abstract]
Weighted average discount rate	5.11%	4.34%	5.17%
Health care cost trend rate assumed for next year (in hundredths)	7.00%	7.00%	7.00%
Rate to which the cost trend rate is assumed to decline (ultimate trend rate) (in hundredths)	5.00%	5.00%	5.00%
Year that the rate reaches the ultimate trend rate	2020	2020	2020
Effect of one percentage point increase in health care cost trend rate on accumulated postretirement benefit obligation and aggregate of benefits earned and interest cost (in hundredths)	1.00%
Expected benefit payments under defined benefit pension plans and postretirement benefit plan for next five years [Abstract]
2015	2,041
2016	1,650
2017	1,603
2018	1,555
2019	1,490
2020-2024	6,923
Projected benefit obligation	28,017	27,174	36,969
Fair value of plan assets	$ 0	$ 0

Actual return on level 3 plan assets, separately identifying the amount related to assets sold.

No definition available.

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- Definition

The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation and the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

+ References

No definition available.

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- Definition

Actual return on level 3 plan assets, separately identifying the amount related to assets still held at the reporting date.

+ References

No definition available.

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- Definition

Purchases of level 3 plan assets, separately identifying the amount relate to assets purchased or capital calls for the period.

+ References

No definition available.

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The amount of gains or losses recognized in net periodic benefit cost.

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- Definition

The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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The amount of the transition obligation or asset recognized in net periodic benefit cost.

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The interest rate used to adjust for the time value of money.

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- Definition

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Long-Term Rate of Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512013

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)(3)

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- Definition

1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Projected Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6522206

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Accumulated Postretirement Benefit Obligation

-URI http://asc.fasb.org/extlink&oid=6503904

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- Definition

Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

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- Definition

Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

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Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

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- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Return on Plan Assets

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-Name Accounting Standards Codification

-Topic 715

-SubTopic 60

-Glossary Expected Return on Plan Assets

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-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (h)(3)

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- Definition

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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- Definition

The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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- Definition

The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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- Definition

Amount of net gain (loss) recognized in net periodic benefit cost due to settlements and curtailments. Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from 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, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits.

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- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (h)(1)

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-Name Accounting Standards Codification

-Glossary Service Cost (Component of Net Periodic Pension Cost)

-URI http://asc.fasb.org/extlink&oid=6525008

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The ultimate trend rate for health care costs.

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Year the ultimate health care cost trend rate is expected to be reached, in CCYY format.

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- Definition

Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)

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- Definition

Cash outflow to owners or shareholders, excluding ordinary dividends. Includes special dividends.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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-Subparagraph (a)

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