Comprehensive Income (Components of Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation adjustment, before tax	$ (3,106)	$ (33,191)	$ (81,003)
Other comprehensive income (loss), before tax	(315,801)	371,224	(603,577)
Other comprehensive income (loss), tax	(120,075)	155,295	(200,669)
Amortization of prior service cost, net of tax	6,970	11,310	3,093
Amortization of actuarial loss (gain), net, net of tax	9,968	44,610	36,860
Amortization of transition obligation, net of tax	0	88	93
Total reclassification adjustments, net of tax	16,938	56,008	40,046
Prior service cost arising in current year, net of tax	214	(33,203)	(5,363)
Actuarial (loss) gain, net, arising in current year, net of tax	(127,942)	225,929	(357,459)
Total other comprehensive income before reclassification adjustments, net of tax	(127,728)	192,726	(362,822)
Amortization of cash flow hedges, net of tax	385	386	426
Change in fair value of cash flow hedges, net of tax	(82,215)	0	445
Total other comprehensive (loss) income	(195,726)	215,929	(402,908)
Comprehensive income	735,807	1,208,356	718,677
Pension and Other Postretirement Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Prior service cost arising in current year, before tax	347	(53,902)	(8,706)
Actuarial (loss) gain, net, arising in current year, before tax	(207,698)	366,769	(580,291)
Total other comprehensive income before reclassification adjustments, before tax	(207,351)	312,867	(588,997)
Prior service cost arising in current year, tax	133	(20,699)	(3,343)
Actuarial (loss) gain, net, arising in current year, tax	(79,756)	140,840	(222,832)
Total other comprehensive income before reclassification adjustments, tax	(79,623)	120,141	(226,175)
Prior service cost arising in current year, net of tax	214	(33,203)	(5,363)
Actuarial (loss) gain, net, arising in current year, net of tax	(127,942)	225,929	(357,459)
Total other comprehensive income before reclassification adjustments, net of tax	(127,728)	192,726	(362,822)
Pension and Other Postretirement Plans [Member] | Reclassification out of AOCI [Member] | Operating Expenses [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amortization of prior service cost, before tax	11,313	18,360	5,021
Amortization of actuarial loss (gain), net, before tax	16,184	72,421	59,835
Amortization of transition obligation, before tax		141	153
Total reclassification adjustments, before tax	27,497	90,922	65,009
Amortization of prior service cost, tax	4,343	7,050	1,928
Amortization of actuarial loss (gain), net, tax	6,216	27,811	22,975
Amortization of transition obligation, tax		53	60
Total reclassification adjustments, tax	10,559	34,914	24,963
Amortization of prior service cost, net of tax	6,970	11,310	3,093
Amortization of actuarial loss (gain), net, net of tax	9,968	44,610	36,860
Amortization of transition obligation, net of tax		88	93
Total reclassification adjustments, net of tax	16,938	56,008	40,046
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation adjustment, before tax	(3,106)	(33,191)	(81,003)
Foreign currency translation adjustment, tax	0	0	0
Foreign currency translation adjustment, net of tax	(3,106)	(33,191)	(81,003)
Interest Rate Swap [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in fair value of cash flow hedges, before tax	(133,466)		722
Change in fair value of cash flow hedges, tax	(51,251)		277
Change in fair value of cash flow hedges, net of tax	(82,215)		445
Interest Rate Swap [Member] | Reclassification out of AOCI [Member] | Interest Expense [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amortization of cash flow hedges, before tax	625	626	692
Amortization of cash flow hedges, tax	240	240	266
Amortization of cash flow hedges, net of tax	$ 385	$ 386	$ 426