Financial Instruments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Dec. 29, 2013
Debt Instrument [Line Items]
Carrying Cost	$ 1,386,251	$ 1,394,387	$ 1,388,285
Carrying Cost, Current	426,356	0	428,390
Carrying Cost, Non-Current	959,895	1,394,387	959,895
Fair Value	1,515,806	1,567,818	1,487,204
Fair Value, Current	427,678	0	435,838
Fair Value, Non-Current	1,088,128	1,567,818	1,051,366
Principal Amount	1,384,895	1,384,895	1,384,895
Notes 6.125% Due 2014 [Member]
Debt Instrument [Line Items]
Carrying Cost	426,356	434,492	428,390
Fair Value	427,678	449,395	435,838
Principal Amount	425,000	425,000	425,000
Maturity Date	2014	2014	2014
Interest Rate	6.125%	6.125%	6.125%
Adjustments included in carrying costs related to interest rate swaps	1,356	9,492	3,390
Notes 6.30% Due 2017 [Member]
Debt Instrument [Line Items]
Carrying Cost	350,000	350,000	350,000
Fair Value	399,785	407,085	400,050
Principal Amount	350,000	350,000	350,000
Maturity Date	2017	2017	2017
Interest Rate	6.30%	6.30%	6.30%
Debentures 6.60% Due 2028 [Member]
Debt Instrument [Line Items]
Carrying Cost	109,895	109,895	109,895
Fair Value	120,643	126,588	118,566
Principal Amount	109,895	109,895	109,895
Maturity Date	2028	2028	2028
Interest Rate	6.60%	6.60%	6.60%
Notes 6.35% Due 2040 [Member]
Debt Instrument [Line Items]
Carrying Cost	500,000	500,000	500,000
Fair Value	567,700	584,750	532,750
Principal Amount	$ 500,000	$ 500,000	$ 500,000
Maturity Date	2040	2040	2040
Interest Rate	6.35%	6.35%	6.35%