Pre-Tax Effect of Derivative Instruments Designated as Cash Flow and Net Investment Hedges (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Mar. 31, 2012		Mar. 26, 2011		Mar. 31, 2012		Mar. 26, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in OCI - Effective Portion	$ (32)	[1]	$ (227)	[1]	$ 110	[1]	$ (296)	[1]
Gains (Losses) Reclassified from AOCI into Income - Effective Portion	146	[1],[2]	(90)	[1],[3]	384	[1],[4]	(539)	[1],[5]
Gains (Losses) Recognized - Ineffective Portion and Amount Excluded from Effectiveness Testing	(140)		(140)		(208)		(119)
Cash flow hedges | Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in OCI - Effective Portion	(32)	[1]	(216)	[1]	103	[1]	(282)	[1]
Gains (Losses) Reclassified from AOCI into Income - Effective Portion	146	[1],[2]	(90)	[1],[3]	384	[1],[4]	(539)	[1],[5]
Gains (Losses) Recognized - Ineffective Portion and Amount Excluded from Effectiveness Testing	(140)		(140)		(209)		(119)
Net Investment Hedges | Foreign Exchange Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (Losses) Recognized in OCI - Effective Portion	0	[1]	(11)	[1]	7	[1]	(14)	[1]
Gains (Losses) Reclassified from AOCI into Income - Effective Portion	0	[1],[2]	0	[1],[3]	0	[1],[4]	0	[1],[5]
Gains (Losses) Recognized - Ineffective Portion and Amount Excluded from Effectiveness Testing	$ 0		$ 0		$ 1		$ 0

[1] Refer to Note 5, "Shareholders' Equity and Share-based Compensation" of this Form 10-Q, which summarizes the activity in AOCI related to derivatives.

[2] Includes gains/(losses) reclassified from AOCI into net income for the effective portion of cash flow hedges, of which $154 million and $(8) million were recognized within net sales and cost of sales, respectively, within the Condensed Consolidated Statement of Operations for the three months ended March 31, 2012. There were no amounts reclassified from AOCI into net income for the effective portion of net investment hedges for the three months ended March 31, 2012.

[3] Includes gains/(losses) reclassified from AOCI into net income for the effective portion of cash flow hedges, of which $(24) million and $(66) million were recognized within net sales and cost of sales, respectively, within the Condensed Consolidated Statement of Operations for the three months ended March 26, 2011. There were no amounts reclassified from AOCI into net income for the effective portion of net investment hedges for the three months ended March 26, 2011.

[4] Includes gains/(losses) reclassified from AOCI into net income for the effective portion of cash flow hedges, of which $341 million and $43 million were recognized within net sales and cost of sales, respectively, within the Condensed Consolidated Statement of Operations for the six months ended March 31, 2012. There were no amounts reclassified from AOCI into net income for the effective portion of net investment hedges for the six months ended March 31, 2012.

[5] Includes gains/(losses) reclassified from AOCI into net income for the effective portion of cash flow hedges, of which $(281) million and $(258) million were recognized within net sales and cost of sales, respectively, within the Condensed Consolidated Statement of Operations for the six months ended March 26, 2011. There were no amounts reclassified from AOCI into net income for the effective portion of net investment hedges for the six months ended March 26, 2011.