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Pension Plans (Summary Of Fair Value By Asset Category And Level Within Fair Value Hierarchy) (Detail) (USD $) In Millions, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	$ 964.0	$ 846.1	$ 793.0
Domestic Pension Plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	830.6	720.8
Domestic Pension Plans [Member] | Cash And Cash Equivalents [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	25.5	9.2
Domestic Pension Plans [Member] | Domestic Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	108.5	150.7
Domestic Pension Plans [Member] | Commingled Funds Domestic Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	172.2
Domestic Pension Plans [Member] | Commingled Funds - Foreign Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	64.8	112.3
Domestic Pension Plans [Member] | Private Equity Partnerships Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	49.6	49.9
Domestic Pension Plans [Member] | Government Debt Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	91.9	81.0
Domestic Pension Plans [Member] | Corporate Debt Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	192.5	160.4
Domestic Pension Plans [Member] | Real Estate And Other Real Assets [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	50.6	43.1
Domestic Pension Plans [Member] | Hedge Funds [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	75.0	68.6
Domestic Pension Plans [Member] | Foreign Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets		17.7
Domestic Pension Plans [Member] | Commingled Funds Debt Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets		27.9
Foreign Pension Plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	133.4	125.3
Foreign Pension Plans [Member] | Cash And Cash Equivalents [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	3.9	11.2
Foreign Pension Plans [Member] | Hedge Funds [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	20.0	16.5
Foreign Pension Plans [Member] | Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	11.6	10.1
Foreign Pension Plans [Member] | Commingled Funds - Multi-Strategy [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	94.1	83.4
Foreign Pension Plans [Member] | Insurance Contracts [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	3.8	4.1
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	430.0	434.6
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Cash And Cash Equivalents [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	25.5	9.2
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Domestic Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	108.5	150.7
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Government Debt Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	91.9	81.0
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Corporate Debt Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	192.5	160.4
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Real Estate And Other Real Assets [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	11.6	9.2
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Foreign Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets		17.7
Quoted Prices For Identical Assets (Level 1) [Member] | Domestic Pension Plans [Member] | Commingled Funds Debt Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets		6.4
Quoted Prices For Identical Assets (Level 1) [Member] | Foreign Pension Plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	15.5	21.3
Quoted Prices For Identical Assets (Level 1) [Member] | Foreign Pension Plans [Member] | Cash And Cash Equivalents [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	3.9	11.2
Quoted Prices For Identical Assets (Level 1) [Member] | Foreign Pension Plans [Member] | Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	11.6	10.1
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	237.0	133.8
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member] | Commingled Funds Domestic Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	172.2
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member] | Commingled Funds - Foreign Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	64.8	112.3
Significant Other Observable Inputs (Level 2) [Member] | Domestic Pension Plans [Member] | Commingled Funds Debt Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets		21.5
Significant Other Observable Inputs (Level 2) [Member] | Foreign Pension Plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	97.9	87.5
Significant Other Observable Inputs (Level 2) [Member] | Foreign Pension Plans [Member] | Commingled Funds - Multi-Strategy [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	94.1	83.4
Significant Other Observable Inputs (Level 2) [Member] | Foreign Pension Plans [Member] | Insurance Contracts [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	3.8	4.1
Significant Unobservable Inputs (Level 3) [Member] | Domestic Pension Plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	163.6	152.4
Significant Unobservable Inputs (Level 3) [Member] | Domestic Pension Plans [Member] | Private Equity Partnerships Equity Securities [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	49.6	49.9
Significant Unobservable Inputs (Level 3) [Member] | Domestic Pension Plans [Member] | Real Estate And Other Real Assets [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	39.0	33.9
Significant Unobservable Inputs (Level 3) [Member] | Domestic Pension Plans [Member] | Hedge Funds [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	75.0	68.6
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Plans [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	20.0	16.5
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Plans [Member] | Hedge Funds [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Fair value of plan assets	$ 20.0	$ 16.5

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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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Section 35

-Paragraph 50

-URI http://asc.fasb.org/extlink&oid=6867990&loc=d3e12355-114930



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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 87

-Paragraph 49

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph d(iv)(b)(i)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

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