Company-Sponsored Employee Benefit Plans (Fair Value Measurements) (Details) (Qualified Pension Plan [Member], USD $) In Thousands, unless otherwise specified	Jun. 28, 2014		Jun. 29, 2013		Jun. 30, 2012
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 2,937,519		$ 2,518,009
U.S. Large Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	995,792	[1]	721,215	[1]
U.S. Small to Mid Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			99,518	[1]
U.S. Small Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	135,781
International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	717,022	[2]	745,262	[2]
High Yield Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	102,041	[2]	226,955	[2]
Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	149,653	[2]	64,845	[2]
Private Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	31,204	[2]	14,375	[2]
Total Invested Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,927,727		2,527,180
Level 1 [Member] | U.S. Large Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	218,165	[1]	189,548	[1]
Level 1 [Member] | U.S. Small to Mid Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			99,518	[1]
Level 1 [Member] | U.S. Small Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	135,781
Level 1 [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Level 1 [Member] | High Yield Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Level 1 [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Level 1 [Member] | Private Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Level 1 [Member] | Total Invested Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	353,819		288,817
Level 2 [Member] | U.S. Large Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	777,627	[1]	531,667	[1]
Level 2 [Member] | U.S. Small to Mid Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0	[1]
Level 2 [Member] | U.S. Small Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Level 2 [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	717,022	[2]	745,262	[2]
Level 2 [Member] | High Yield Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	102,041	[2]	226,955	[2]
Level 2 [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	114,250	[2]	0	[2]
Level 2 [Member] | Private Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Level 2 [Member] | Total Invested Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,507,301		2,159,143
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	66,607		79,220		56,392
Level 3 [Member] | U.S. Large Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[1]	0	[1]
Level 3 [Member] | U.S. Small to Mid Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0	[1]
Level 3 [Member] | U.S. Small Cap Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Level 3 [Member] | International Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Level 3 [Member] | High Yield Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Level 3 [Member] | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	35,403	[2]	64,845	[2]	51,097
Level 3 [Member] | Private Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	31,204	[2]	14,375	[2]	5,295
Level 3 [Member] | Total Invested Plan Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	66,607		79,220
Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	51,066		88,812	[1]
Cash and Cash Equivalents [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0	[1]
Cash and Cash Equivalents [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	51,066		88,812	[1]
Cash and Cash Equivalents [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0	[1]
Long Duration Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of derivative assets	800		400
Fair value of derivative liabilities	600		1,300
Long Duration Fixed Income [Member] | Diversified Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			264,139	[2]
Long Duration Fixed Income [Member] | U.S. Government and Agency Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	171,617		123,253
Long Duration Fixed Income [Member] | Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	568,419		117,565
Long Duration Fixed Income [Member] | Mortgage-Backed Securities, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			8,316
Long Duration Fixed Income [Member] | Other Debt [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,907		13,277	[1]
Long Duration Fixed Income [Member] | Derivatives, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	225	[3]	(936)	[4]
Long Duration Fixed Income [Member] | Level 1 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0	[2]
Long Duration Fixed Income [Member] | Level 1 [Member] | U.S. Government and Agency Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Long Duration Fixed Income [Member] | Level 1 [Member] | Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Long Duration Fixed Income [Member] | Level 1 [Member] | Mortgage-Backed Securities, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0
Long Duration Fixed Income [Member] | Level 1 [Member] | Other Debt [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0	[1]
Long Duration Fixed Income [Member] | Level 1 [Member] | Derivatives, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	(127)	[3]	(249)	[4]
Long Duration Fixed Income [Member] | Level 2 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			264,139	[2]
Long Duration Fixed Income [Member] | Level 2 [Member] | U.S. Government and Agency Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	171,617		123,253
Long Duration Fixed Income [Member] | Level 2 [Member] | Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	568,419		117,565
Long Duration Fixed Income [Member] | Level 2 [Member] | Mortgage-Backed Securities, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			8,316
Long Duration Fixed Income [Member] | Level 2 [Member] | Other Debt [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4,907		13,277	[1]
Long Duration Fixed Income [Member] | Level 2 [Member] | Derivatives, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	352	[3]	(687)	[4]
Long Duration Fixed Income [Member] | Level 3 [Member] | Diversified Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0	[2]
Long Duration Fixed Income [Member] | Level 3 [Member] | U.S. Government and Agency Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Long Duration Fixed Income [Member] | Level 3 [Member] | Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Long Duration Fixed Income [Member] | Level 3 [Member] | Mortgage-Backed Securities, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0
Long Duration Fixed Income [Member] | Level 3 [Member] | Other Debt [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0	[1]
Long Duration Fixed Income [Member] | Level 3 [Member] | Derivatives, Net [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[4]
Reconciling Item Pension Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9,792	[5]	(9,171)	[5]
Municipal Bonds [Member] | Long Duration Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			23,840
Municipal Bonds [Member] | Long Duration Fixed Income [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0
Municipal Bonds [Member] | Long Duration Fixed Income [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			23,840
Municipal Bonds [Member] | Long Duration Fixed Income [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0
Sovereign Debt [Member] | Long Duration Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			16,744
Sovereign Debt [Member] | Long Duration Fixed Income [Member] | Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0
Sovereign Debt [Member] | Long Duration Fixed Income [Member] | Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			16,744
Sovereign Debt [Member] | Long Duration Fixed Income [Member] | Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			$ 0

[1] Include direct investments and investment funds.

[2] Include investments in investment funds only.

[3] Include credit default swaps, interest rate swaps and futures. The fair value of asset positions totaled $0.8 million; the fair value of liability positions totaled $0.6 million.

[4] Include credit default swaps, interest rate swaps, foreign currency contracts, futures and options. The fair value of asset positions totaled $0.4 million; the fair value of liability positions totaled $1.3 million.

[5] Include primarily plan receivables and payables, net.