Condensed Consolidating Statements Of Cash Flows (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 29, 2014		Jun. 30, 2013
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	$ 1,294	[1]	$ 1,087	[1]
Cash flows from investing activities - continuing operations:
Net cash used by investing activities	(145)	[1]	(161)	[1]
Cash flows from financing activities - continuing operations:
Purchases of common stock	(2,691)		(485)
Proceeds from option exercises	415
Dividends paid	(411)		(198)
Other, net	54		30
Net cash used by financing activities	(2,633)	[1]	(455)	[1]
Net cash (used) provided by discontinued operations	24		(10)
Cash sweep/funding by parent	0		0
Net increase (decrease) in cash and equivalents	(1,460)		461
Cash and equivalents at beginning of period	5,301		3,296
Cash and equivalents at end of period	3,841		3,757
Parent Company [Member]
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	187	[1]	(36)	[1]
Cash flows from investing activities - continuing operations:
Net cash used by investing activities	1	[1]	2	[1]
Cash flows from financing activities - continuing operations:
Purchases of common stock	(2,691)		(485)
Proceeds from option exercises	415
Dividends paid	(411)
Other, net	54		30
Net cash used by financing activities	(2,633)	[1]	(455)	[1]
Net cash (used) provided by discontinued operations	24		(10)
Cash sweep/funding by parent	1,124		943
Net increase (decrease) in cash and equivalents	(1,297)		444
Cash and equivalents at beginning of period	4,179		2,300
Cash and equivalents at end of period	2,882		2,744
Guarantor Subsidiaries [Member]
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	1,197	[1]	1,182	[1]
Cash flows from investing activities - continuing operations:
Net cash used by investing activities	(132)	[1]	(147)	[1]
Cash flows from financing activities - continuing operations:
Purchases of common stock	0		0
Proceeds from option exercises	0
Dividends paid	0
Other, net	0		0
Net cash used by financing activities	0	[1]	0	[1]
Net cash (used) provided by discontinued operations	0		0
Cash sweep/funding by parent	(1,065)		(1,035)
Net increase (decrease) in cash and equivalents	0		0
Cash and equivalents at beginning of period	0		0
Cash and equivalents at end of period	0		0
Non-Guarantor Subsidiaries [Member]
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	(90)	[1]	(59)	[1]
Cash flows from investing activities - continuing operations:
Net cash used by investing activities	(14)	[1]	(16)	[1]
Cash flows from financing activities - continuing operations:
Purchases of common stock	0		0
Proceeds from option exercises	0
Dividends paid	0
Other, net	0		0
Net cash used by financing activities	0	[1]	0	[1]
Net cash (used) provided by discontinued operations	0		0
Cash sweep/funding by parent	(59)		92
Net increase (decrease) in cash and equivalents	(163)		17
Cash and equivalents at beginning of period	1,122		996
Cash and equivalents at end of period	959		1,013
Consolidating Adjustments [Member]
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	0	[1]	0	[1]
Cash flows from investing activities - continuing operations:
Net cash used by investing activities	0	[1]	0	[1]
Cash flows from financing activities - continuing operations:
Purchases of common stock	0		0
Proceeds from option exercises	0
Dividends paid	0
Other, net	0		0
Net cash used by financing activities	0	[1]	0	[1]
Net cash (used) provided by discontinued operations	0		0
Cash sweep/funding by parent	0		0
Net increase (decrease) in cash and equivalents	0		0
Cash and equivalents at beginning of period	0		0
Cash and equivalents at end of period	$ 0		$ 0

[1] * Continuing operations only