Long-Term Debt - Additional Information (Detail) (USD $)	12 Months Ended			12 Months Ended		1 Months Ended			12 Months Ended
	Dec. 30, 2012	Dec. 25, 2011	Sep. 30, 2010	Dec. 30, 2012 After March 15, 2012 Minimum	Dec. 30, 2012 Federal Funds Rate	Aug. 31, 2009 Corporate Family Rating Moody's, Ba1 Rating	Aug. 31, 2009 Senior Notes Moody's, Ba2 Rating	Aug. 31, 2009 Line of Credit Moody's, Baa3 Rating	Dec. 30, 2012 Revolving Credit Facility	Dec. 25, 2011 Revolving Credit Facility	Dec. 30, 2012 Revolving Credit Facility Unsecured Debt Minimum	Sep. 30, 2010 Revolving Credit Facility Through 2012 March 15 After Amendment	Dec. 30, 2012 Used lines of Credit	Dec. 30, 2012 Used lines of Credit Minimum	Dec. 30, 2012 Used lines of Credit Maximum	Dec. 30, 2012 Unused lines of Credit	Dec. 30, 2012 Eurodollar Future After March 15, 2012 Minimum	Dec. 30, 2012 Eurodollar Future After March 15, 2012 Maximum	Dec. 30, 2012 Eurodollar Future At the current leverage ratio	Dec. 30, 2012 Prime Rate or Federal Funds Rate After March 15, 2012 Minimum	Dec. 30, 2012 Prime Rate or Federal Funds Rate After March 15, 2012 Maximum	Dec. 30, 2012 Prime Rate or Federal Funds Rate At the current leverage ratio	May 31, 2009 Unsecured Fixed Rate Notes 5.75 Percent due June 2011	Dec. 30, 2012 Unsecured notes bearing fixed rate interest at 6.375% due April 2012	May 31, 2009 Unsecured notes bearing fixed rate interest at 6.375% due April 2012	Dec. 30, 2012 Unsecured notes bearing fixed rate interest at 8.75% due November 2014	Oct. 31, 2009 Unsecured notes bearing fixed rate interest at 8.75% due November 2014	Dec. 30, 2012 Unsecured notes bearing fixed rate interest at 10% due June 2015	May 31, 2009 Unsecured notes bearing fixed rate interest at 10% due June 2015	Sep. 30, 2010 Unsecured Senior Notes 6.375 Percent Due 2015	Dec. 30, 2012 Unsecured notes bearing fixed rate interest at 10% due April 2016	May 31, 2009 Unsecured notes bearing fixed rate interest at 10% due April 2016	Dec. 30, 2012 Unsecured notes bearing fixed rate interest at 9.375% due November 2017	Oct. 31, 2009 Unsecured notes bearing fixed rate interest at 9.375% due November 2017	Dec. 30, 2012 Unsecured notes bearing fixed rate interest at 9.375% due November 2017 If redeemed during the 12-month period commencing on November 15 , 2013	Dec. 30, 2012 Unsecured notes bearing fixed rate interest at 9.375% due November 2017 If redeemed during the 12-month period commencing on November 15 , 2014	Dec. 30, 2012 Unsecured notes bearing fixed rate interest at 9.375% due November 2017 If redeemed during the 12-month period commencing on November 15 , 2015 and thereafter	Sep. 30, 2010 Unsecured Senior Notes 7.125 Percent Due September 2018 [Member]	Sep. 30, 2010 Unsecured Senior Notes 7.125 Percent Due September 2018 [Member] If redeemed during the 12-month period commencing on Sept. 1, 2016 and thereafter	Sep. 30, 2010 Unsecured Senior Notes 7.125 Percent Due September 2018 [Member] If redeemed during the 12-month period commencing on Sept. 1, 2014	Sep. 30, 2010 Unsecured Senior Notes 7.125 Percent Due September 2018 [Member] If redeemed during the 12-month period commencing on Sept. 1, 2015	Dec. 30, 2012 Unsecured notes bearing fixed rate interest at 6.375% due September 2015
Debt Instrument [Line Items]
Total average debt outstanding	$ 1,700,000,000	$ 2,100,000,000
Weighted average interest rate on all debt	7.70%	7.40%
Line of credit facility, unused borrowing capacity									922,000,000
Line of credit facility, additional unsecured debt borrowing capacity											1,250,000,000
Long-term debt, principal amount			500,000,000																								250,000,000		67,000,000	250,000,000		193,000,000		250,000,000				250,000,000
Long-term debt, interest rate																							5.75%	6.375%	6.375%	8.75%	8.75%	10.00%	10.00%	6.375%	10.00%	10.00%	9.375%	9.375%				7.125%				6.375%
Long-term debt, price as percentage of face value																											98.465%			98.97%				98.582%				98.527%
Long-term debt, yield to maturity																											9.125%			6.625%				9.625%				7.375%
Long-term debt, redemption price																																			104.688%	102.344%	100.00%		100.00%	103.563%	101.781%
Line of credit facility, total commitment												1,140,000,000
Long-term debt, principal amount exchanged																							67,000,000		193,000,000
Maximum senior leverage ratio	3.5
Maximum total leverage ratio	4.0
Senior leverage ratio	1.41
Long-term debt, fair value	1,600,000,000	1,900,000,000
Line of credit facility, commitment fee percentage on undrawn commitments				0.50%
Line of credit facility, commitments extension fee basis points													0.00%	0.00%	0.75%	0.25%
Line of credit facility, applicable margin on interest rate					0.50%												2.00%	3.25%	2.25%	1.00%	2.25%	1.25%
Credit rating						Ba1	Ba2	Baa3
Line of credit facility, amount outstanding									205,000,000
Line of credit facility, maximum amount outstanding during period									521,000,000	470,000,000
Line of credit facility, daily average outstanding balance									353,000,000	257,000,000
Line of credit facility, weighted average interest rate									2.80%	2.60%
Shelf registration statement, amount of securities that can be issued	$ 7,000,000,000