Shareholder's Equity - Additional Information (Detail) (USD $)	1 Months Ended
	Sep. 30, 2008	Oct. 26, 2012	Oct. 28, 2011	Dec. 12, 2005	Jan. 28, 2005	Jul. 12, 2001
Stockholders Equity [Line Items]
Common stock, shares authorized (in shares)		150,000,000	150,000,000
Common stock, Par Value		$ 1.00	$ 1.00			$ 1.00
Common stock shares distributed in connection with emergence from bankruptcy (in shares)						50,000,000
Common stock shares distributed in accordance with the Plan of Reorganization (in shares)					1,233,423
Common stock shares distributed in accordance with the Plan of Reorganization, adjusted for stock splits (in shares)				2,775,111
Share repurchase program authorization amount		$ 2,000,000,000
Purchase of treasury stock, amount	93,600,000
Purchase of treasury stock, shares (in shares)	1,890,000
Value of shares and dividends claimed from liquidation		5,300,000
Treasury stock, amount		$ 1,116,623,000	$ 1,116,623,000
Treasury stock, shares		23,873,159