Summary of Dividends Declared and Paid (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended
Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Mar. 28, 2015	Mar. 29, 2014	Sep. 27, 2014
Dividends [Line Items]
Dividend Per Share	$ 0.47	$ 0.47	$ 0.47	$ 0.47	$ 0.44	$ 0.44	$ 0.94	$ 0.88	$ 1.82
Amount	$ 2,734us-gaap_PaymentsOfDividends	$ 2,750us-gaap_PaymentsOfDividends	$ 2,807us-gaap_PaymentsOfDividends	$ 2,830us-gaap_PaymentsOfDividends	$ 2,655us-gaap_PaymentsOfDividends	$ 2,739us-gaap_PaymentsOfDividends	$ 5,484us-gaap_PaymentsOfDividends		$ 11,031us-gaap_PaymentsOfDividends

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

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Balance Type:	credit
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