Condensed Consolidating Statements Of Earnings (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Oct. 02, 2011	Sep. 30, 2012	Oct. 02, 2011
Condensed Consolidating Financial Information [Line Items]
Revenues	$ 7,934	$ 7,853	$ 23,435	$ 23,530
Cost of sales	6,519	6,363	19,130	19,148
General and administrative expenses	510	492	1,570	1,506
Operating earnings	905	998	2,735	2,876
Interest expense	(40)	(41)	(124)	(115)
Interest income	1	3	9	12
Other, net	(3)	(8)	(8)	34
Earnings before income taxes	863	952	2,612	2,807
Provision for income taxes	263	287	814	858
Discontinued operations, net of tax	0	(13)	0	(26)
Equity in net earnings of subsidiaries	0	0	0	0
Net earnings	600	652	1,798	1,923
Comprehensive income	745	171	1,953	1,918
Parent Company
Condensed Consolidating Financial Information [Line Items]
Revenues	0	0	0	0
Cost of sales	(7)	(2)	(16)	(7)
General and administrative expenses	22	23	66	67
Operating earnings	(15)	(21)	(50)	(60)
Interest expense	(40)	(40)	(123)	(112)
Interest income	2	1	5	8
Other, net	(2)	1	0	2
Earnings before income taxes	(55)	(59)	(168)	(162)
Provision for income taxes	(12)	(21)	(74)	(53)
Discontinued operations, net of tax		(13)		(26)
Equity in net earnings of subsidiaries	643	703	1,892	2,058
Net earnings	600	652	1,798	1,923
Comprehensive income	745	171	1,953	1,918
Guarantor Subsidiaries
Condensed Consolidating Financial Information [Line Items]
Revenues	6,684	6,262	19,485	19,007
Cost of sales	5,476	5,059	15,834	15,399
General and administrative expenses	388	368	1,196	1,118
Operating earnings	820	835	2,455	2,490
Interest expense	0	(1)	0	(3)
Interest income	(2)	2	1	3
Other, net	1	(12)	(5)	30
Earnings before income taxes	819	824	2,451	2,520
Provision for income taxes	244	267	790	790
Discontinued operations, net of tax		0		0
Equity in net earnings of subsidiaries	0	0	0	0
Net earnings	575	557	1,661	1,730
Comprehensive income	577	541	1,659	1,740
Non-Guarantor Subsidiaries
Condensed Consolidating Financial Information [Line Items]
Revenues	1,250	1,591	3,950	4,523
Cost of sales	1,050	1,306	3,312	3,756
General and administrative expenses	100	101	308	321
Operating earnings	100	184	330	446
Interest expense	0	0	(1)	0
Interest income	1	0	3	1
Other, net	(2)	3	(3)	2
Earnings before income taxes	99	187	329	449
Provision for income taxes	31	41	98	121
Discontinued operations, net of tax		0		0
Equity in net earnings of subsidiaries	0	0	0	0
Net earnings	68	146	231	328
Comprehensive income	170	(336)	273	257
Consolidation, Eliminations
Condensed Consolidating Financial Information [Line Items]
Revenues	0	0	0	0
Cost of sales	0	0	0	0
General and administrative expenses	0	0	0	0
Operating earnings	0	0	0	0
Interest expense	0	0	0	0
Interest income	0	0	0	0
Other, net	0	0	0	0
Earnings before income taxes	0	0	0	0
Provision for income taxes	0	0	0	0
Discontinued operations, net of tax		0		0
Equity in net earnings of subsidiaries	(643)	(703)	(1,892)	(2,058)
Net earnings	(643)	(703)	(1,892)	(2,058)
Comprehensive income	$ (747)	$ (205)	$ (1,932)	$ (1,997)