Debt (Narrative) (Details) (USD $)
9 Months Ended 3 Months Ended 0 Months Ended
Apr. 03, 2015
Mar. 28, 2014
Apr. 03, 2015
Dec. 02, 2014
Jan. 15, 2015
Apr. 30, 2013
Jan. 18, 2011
May 07, 2015
Debt Instrument [Line Items]                
Line of Credit Facility, Maximum Borrowing Capacity         $ 700,000,000 $ 500,000,000    
Sub-limit for issuance of letters of credit under revolving credit facility             75,000,000  
Line of Credit Facility Letters of Credit Outstanding 0   0          
Loss on repurchase of debt 52,000,000 7,000,000            
Senior Notes 6.8 Percent due October 2016 [Member]                
Debt Instrument [Line Items]                
Aggregate principal amount 600,000,000   600,000,000          
Stated interest rate (as a percent) 6.80%   6.80%          
Senior Notes 3.75 Percent due November 2018 [Member]                
Debt Instrument [Line Items]                
Aggregate principal amount 800,000,000   800,000,000          
Stated interest rate (as a percent) 3.75%   3.75%          
Senior Notes 6.875 Percent due May 2020 [Member]                
Debt Instrument [Line Items]                
Aggregate principal amount 600,000,000   600,000,000          
Stated interest rate (as a percent) 6.875%   6.875%          
Repayment of Long-term Debt     1,000,000          
Senior Notes 7.00 Percent Due November 2021 [Member]                
Debt Instrument [Line Items]                
Aggregate principal amount 600,000,000   600,000,000          
Stated interest rate (as a percent) 7.00%   7.00%          
Senior Notes 4.75 Percent Due June 2023 [Member]                
Debt Instrument [Line Items]                
Aggregate principal amount 1,000,000,000   1,000,000,000          
Stated interest rate (as a percent) 4.75%   4.75%          
Senior Notes 4.75 Percent Due January 2025 [Member]                
Debt Instrument [Line Items]                
Aggregate principal amount 1,000,000,000   1,000,000,000          
Stated interest rate (as a percent) 4.75%   4.75%          
Senior Note 5.75 percent Due December 2034 [Domain]                
Debt Instrument [Line Items]                
Aggregate principal amount 500,000,000   500,000,000 500,000,000        
Stated interest rate (as a percent) 5.75%   5.75% 5.75%        
Debt Instrument, Basis Spread on Variable Rate       0.05%        
Subsequent Event [Member] | Senior Notes 6.875 Percent due May 2020 [Member]                
Debt Instrument [Line Items]                
Debt Redemption Price               1,034.38
Debt Instrument Par Value               $ 1,000