Expected total cash payments

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- Definition

Restructuring Cash Payments To Date

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- Definition

Amount of costs incurred to date for the specified type of restructuring cost.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 146

-Paragraph 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Emerging Issues Task Force (EITF)

-Number 95-3

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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Amount expected to be charged against earnings in the current and future periods for the specified restructuring cost.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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-URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 146

-Paragraph 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Emerging Issues Task Force (EITF)

-Number 95-3

-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 SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

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The expected number of positions to be eliminated as a result of restructuring activities.

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- Definition

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

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-Subparagraph (SAB TOPIC 5.P.4(b))

-URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Restructuring And Other Charges (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended				9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended				3 Months Ended	9 Months Ended						3 Months Ended	9 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2011	Oct. 01, 2010	Sep. 30, 2011	Oct. 01, 2010	Sep. 30, 2011 July 2011 Restructuring Plan [Member]	Sep. 30, 2011 July 2011 Restructuring Plan [Member]	Sep. 30, 2011 July 2011 Restructuring Plan [Member] Broadband Segment [Member]	Sep. 30, 2011 July 2011 Restructuring Plan [Member] Transport Segment [Member]	Sep. 30, 2011 July 2011 Restructuring Plan [Member] Services Segment [Member]	Sep. 30, 2011 July 2011 Restructuring Plan [Member] Severance And Other Termination Benefits [Member]	Sep. 30, 2011 July 2011 Restructuring Plan [Member] Severance And Other Termination Benefits [Member]	Sep. 30, 2011 July 2011 Restructuring Plan [Member] Facility- And Asset-Related Charges [Member]	Sep. 30, 2011 July 2011 Restructuring Plan [Member] Facility- And Asset-Related Charges [Member]	Sep. 30, 2011 January 2010 Restructuring Plan [Member]	Sep. 30, 2011 January 2010 Restructuring Plan [Member]	Sep. 30, 2011 January 2010 Restructuring Plan [Member] Broadband Segment [Member]	Sep. 30, 2011 January 2010 Restructuring Plan [Member] Transport Segment [Member]	Sep. 30, 2011 January 2010 Restructuring Plan [Member] Services Segment [Member]	Sep. 30, 2011 January 2010 Restructuring Plan [Member] Severance And Other Termination Benefits [Member]	Sep. 30, 2011 January 2010 Restructuring Plan [Member] Severance And Other Termination Benefits [Member]	Sep. 30, 2011 January 2010 Restructuring Plan [Member] Facility- And Asset-Related Charges [Member]	Sep. 30, 2011 July 2009 Restructuring Plan [Member]	Sep. 30, 2011 July 2009 Restructuring Plan [Member] Broadband Segment [Member]	Sep. 30, 2011 July 2009 Restructuring Plan [Member] Transport Segment [Member]	Sep. 30, 2011 July 2009 Restructuring Plan [Member] Services Segment [Member]	Sep. 30, 2011 July 2009 Restructuring Plan [Member] Severance And Other Termination Benefits [Member]	Sep. 30, 2011 July 2009 Restructuring Plan [Member] Severance And Other Termination Benefits [Member]	Sep. 30, 2011 July 2009 Restructuring Plan [Member] Facility- And Asset-Related Charges [Member]	Sep. 30, 2011 Previous Restructuring Plans [Member] Facility- And Asset-Related Charges [Member]	Jul. 01, 2011 Previous Restructuring Plans [Member] Facility- And Asset-Related Charges [Member]	Sep. 30, 2011 Severance And Other Termination Benefits [Member]	Oct. 01, 2010 Severance And Other Termination Benefits [Member]	Sep. 30, 2011 Severance And Other Termination Benefits [Member]	Oct. 01, 2010 Severance And Other Termination Benefits [Member]	Sep. 30, 2011 Facility- And Asset-Related Charges [Member]	Oct. 01, 2010 Facility- And Asset-Related Charges [Member]	Sep. 30, 2011 Facility- And Asset-Related Charges [Member]	Oct. 01, 2010 Facility- And Asset-Related Charges [Member]
Restructuring Cost and Reserve [Line Items]
Expected total cash payments					$ 18.0										$ 7.2												$ 6.7
Expected pretax charges						22					14		8
Expected workforce reductions						330
Restructuring expense	19.5		20.5	9.5	18.7		10.1	4.7	3.9	14.3		4.4							0.2	0.8							0.6		0.6	0.4	14.5		15.7	7.1	5.0		4.8	2.4
Cumulative pretax restructuring charges incurred to date															9.8	6.2	3.3	0.3		7.2	2.6	7.0	2.6	2.1	2.3		6.6	0.4
Cumulative cash payments														$ 6.7												$ 6.0