Condensed Consolidating Financial Information (Condensed Consolidating Statement of Operations) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Oct. 27, 2012	Oct. 29, 2011	Oct. 27, 2012	Oct. 29, 2011
Net sales	$ 6,075	$ 5,853	$ 18,336	$ 17,681
Cost of sales	(3,672)	(3,544)	(10,984)	(10,587)
Gross margin	2,403	2,309	7,352	7,094
Selling, general and administrative expenses	(2,078)	(2,018)	(6,082)	(5,967)
Operating income (loss)	325	291	1,270	1,127
Interest (expense) income, net
External	(103)	(108)	(320)	(335)
Intercompany	0	0	0	0
Equity in earnings of subsidiaries	0	0	0	0
Income (loss) before income taxes	222	183	950	792
Federal, state and local income tax benefit (expense)	(77)	(44)	(345)	(281)
Net income	145	139	605	511
Comprehensive income	169	153	676	542
Parent
Net sales	0	0	0	0
Cost of sales	0	0	0	0
Gross margin	0	0	0	0
Selling, general and administrative expenses	(2)	11	(6)	7
Operating income (loss)	(2)	11	(6)	7
Interest (expense) income, net
External	0	0	1	1
Intercompany	0	(1)	(1)	(1)
Equity in earnings of subsidiaries	147	132	609	506
Income (loss) before income taxes	145	142	603	513
Federal, state and local income tax benefit (expense)	0	(3)	2	(2)
Net income	145	139	605	511
Comprehensive income	169	153	676	542
Subsidiary Issuer
Net sales	2,979	2,941	9,024	8,967
Cost of sales	(1,901)	(1,899)	(5,640)	(5,614)
Gross margin	1,078	1,042	3,384	3,353
Selling, general and administrative expenses	(1,132)	(1,174)	(3,282)	(3,303)
Operating income (loss)	(54)	(132)	102	50
Interest (expense) income, net
External	(103)	(108)	(320)	(336)
Intercompany	(35)	(47)	(106)	(144)
Equity in earnings of subsidiaries	29	21	222	175
Income (loss) before income taxes	(163)	(266)	(102)	(255)
Federal, state and local income tax benefit (expense)	50	101	87	132
Net income	(113)	(165)	(15)	(123)
Comprehensive income	(89)	(151)	56	(92)
Other Subsidiaries
Net sales	5,820	5,733	15,672	15,188
Cost of sales	(4,480)	(4,452)	(11,661)	(11,406)
Gross margin	1,340	1,281	4,011	3,782
Selling, general and administrative expenses	(959)	(869)	(2,837)	(2,712)
Operating income (loss)	381	412	1,174	1,070
Interest (expense) income, net
External	0	0	(1)	0
Intercompany	35	48	107	145
Equity in earnings of subsidiaries	0	0	0	0
Income (loss) before income taxes	416	460	1,280	1,215
Federal, state and local income tax benefit (expense)	(127)	(142)	(434)	(411)
Net income	289	318	846	804
Comprehensive income	299	324	876	822
Consolidating Adjustments
Net sales	(2,724)	(2,821)	(6,360)	(6,474)
Cost of sales	2,709	2,807	6,317	6,433
Gross margin	(15)	(14)	(43)	(41)
Selling, general and administrative expenses	15	14	43	41
Operating income (loss)	0	0	0	0
Interest (expense) income, net
External	0	0	0	0
Intercompany	0	0	0	0
Equity in earnings of subsidiaries	(176)	(153)	(831)	(681)
Income (loss) before income taxes	(176)	(153)	(831)	(681)
Federal, state and local income tax benefit (expense)	0	0	0	0
Net income	(176)	(153)	(831)	(681)
Comprehensive income	$ (210)	$ (173)	$ (932)	$ (730)