Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 45

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-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 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-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.

+ Details

Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended							6 Months Ended	12 Months Ended							6 Months Ended	12 Months Ended							6 Months Ended	12 Months Ended
	Mar. 29, 2013	Sep. 28, 2012	Mar. 29, 2013 Gross Goodwill	Sep. 28, 2012 Gross Goodwill	Sep. 30, 2011 Gross Goodwill	Mar. 29, 2013 Impairments	Sep. 28, 2012 Impairments	Sep. 30, 2011 Impairments	Mar. 29, 2013 NA Installation & Services	Sep. 28, 2012 NA Installation & Services	Mar. 29, 2013 NA Installation & Services Gross Goodwill	Sep. 28, 2012 NA Installation & Services Gross Goodwill	Sep. 30, 2011 NA Installation & Services Gross Goodwill	Mar. 29, 2013 NA Installation & Services Impairments	Sep. 28, 2012 NA Installation & Services Impairments	Sep. 30, 2011 NA Installation & Services Impairments	Mar. 29, 2013 ROW Installation & Services	Sep. 28, 2012 ROW Installation & Services	Mar. 29, 2013 ROW Installation & Services Gross Goodwill	Sep. 28, 2012 ROW Installation & Services Gross Goodwill	Sep. 30, 2011 ROW Installation & Services Gross Goodwill	Mar. 29, 2013 ROW Installation & Services Impairments	Sep. 28, 2012 ROW Installation & Services Impairments	Sep. 30, 2011 ROW Installation & Services Impairments	Mar. 29, 2013 Global Products	Sep. 28, 2012 Global Products	Mar. 29, 2013 Global Products Gross Goodwill	Sep. 28, 2012 Global Products Gross Goodwill	Sep. 30, 2011 Global Products Gross Goodwill	Mar. 29, 2013 Global Products Impairments	Sep. 28, 2012 Global Products Impairments	Sep. 30, 2011 Global Products Impairments
Changes in the carrying amount of goodwill, by segment ($ in millions):
Goodwill balance at beginning of period	$ 4,367	$ 4,228	$ 6,106	$ 6,128	$ 5,989	$ (1,761)	$ (1,761)	$ (1,761)	$ 2,001	$ 1,993	$ 2,145	$ 2,127	$ 2,119	$ (126)	$ (126)	$ (126)	$ 1,237	$ 1,173	$ 2,274	$ 2,305	$ 2,241	$ (1,068)	$ (1,068)	$ (1,068)	$ 1,129	$ 1,062	$ 1,687	$ 1,696	$ 1,629	$ (567)	$ (567)	$ (567)
Acquisitions/Purchase Accounting Adjustments	29	104							24								6	38							(1)	66
Currency Translation	(51)	35							(6)	8							(37)	26							(8)	1
Goodwill balance at end of period	$ 4,345	$ 4,367	$ 6,106	$ 6,128	$ 5,989	$ (1,761)	$ (1,761)	$ (1,761)	$ 2,019	$ 2,001	$ 2,145	$ 2,127	$ 2,119	$ (126)	$ (126)	$ (126)	$ 1,206	$ 1,237	$ 2,274	$ 2,305	$ 2,241	$ (1,068)	$ (1,068)	$ (1,068)	$ 1,120	$ 1,129	$ 1,687	$ 1,696	$ 1,629	$ (567)	$ (567)	$ (567)