Condensed Consolidating Statements Of Cash Flows (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 05, 2015	Jun. 29, 2014	Jul. 05, 2015	Jun. 29, 2014
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	[1]			$ 1,348	$ 1,294
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities				500	0
Cash flows from investing activities - continuing operations:
Capital expenditures				(190)	(162)
Proceeds from sales of assets				259	3
Other, net				(18)
Net cash used by investing activities				551	(145)
Cash flows from financing activities - continuing operations:
Purchases of common stock				(1,565)	(2,691)
Repayments of fixed-rate notes				(500)	0
Dividends paid		$ (226)	$ (213)	(432)	(411)
Proceeds from option exercises				198	415
Other, net				60	54
Net cash used by financing activities				(2,239)	(2,633)
Net cash (used) provided by discontinued operations				(16)	24
Cash sweep/funding by parent				0	0
Net increase (decrease) in cash and equivalents				(356)	(1,460)
Cash and equivalents at beginning of period				4,388	5,301
Cash and equivalents at end of period		4,032	3,841	4,032	3,841
Parent Company [Member]
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	[1]			18	187
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities				500
Cash flows from investing activities - continuing operations:
Capital expenditures				(2)
Proceeds from sales of assets				162
Other, net				2
Net cash used by investing activities				662	1
Cash flows from financing activities - continuing operations:
Purchases of common stock				(1,565)	(2,691)
Repayments of fixed-rate notes				(500)
Dividends paid				(432)	(411)
Proceeds from option exercises				198	415
Other, net				57	54
Net cash used by financing activities				(2,242)	(2,633)
Net cash (used) provided by discontinued operations				(16)	24
Cash sweep/funding by parent				1,338	1,124
Net increase (decrease) in cash and equivalents				(240)	(1,297)
Cash and equivalents at beginning of period				2,536	4,179
Cash and equivalents at end of period		2,296	2,882	2,296	2,882
Guarantor Subsidiaries [Member]
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	[1]			1,133	1,197
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities				0
Cash flows from investing activities - continuing operations:
Capital expenditures				(180)
Proceeds from sales of assets				97
Other, net				(20)
Net cash used by investing activities				(103)	(132)
Cash flows from financing activities - continuing operations:
Purchases of common stock				0	0
Repayments of fixed-rate notes				0
Dividends paid				0	0
Proceeds from option exercises				0	0
Other, net				3	0
Net cash used by financing activities				3	0
Net cash (used) provided by discontinued operations				0	0
Cash sweep/funding by parent				(1,033)	(1,065)
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	0	0
Non-Guarantor Subsidiaries [Member]
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	[1]			197	(90)
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities				0
Cash flows from investing activities - continuing operations:
Capital expenditures				(8)
Proceeds from sales of assets				0
Other, net				0
Net cash used by investing activities				(8)	(14)
Cash flows from financing activities - continuing operations:
Purchases of common stock				0	0
Repayments of fixed-rate notes				0
Dividends paid				0	0
Proceeds from option exercises				0	0
Other, net				0	0
Net cash used by financing activities				0	0
Net cash (used) provided by discontinued operations				0	0
Cash sweep/funding by parent				(305)	(59)
Net increase (decrease) in cash and equivalents				(116)	(163)
Cash and equivalents at beginning of period				1,852	1,122
Cash and equivalents at end of period		1,736	959	1,736	959
Consolidating Adjustments [Member]
Condensed Consolidating Financial Information [Line Items]
Net cash provided by operating activities	[1]			0	0
Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities				0
Cash flows from investing activities - continuing operations:
Capital expenditures				0
Proceeds from sales of assets				0
Other, net				0
Net cash used by investing activities				0	0
Cash flows from financing activities - continuing operations:
Purchases of common stock				0	0
Repayments of fixed-rate notes				0
Dividends paid				0	0
Proceeds from option exercises				0	0
Other, net				0	0
Net cash used by financing activities				0	0
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	$ 0	$ 0

[1] * Continuing operations only