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Postretirement Health-Care And Life-Insurance Plans (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
1 Months Ended 12 Months Ended
Mar. 31, 2010
Jul. 02, 2011
years
Jul. 03, 2010
Jun. 27, 2009
Mar. 28, 2009
Minimum age for eligibility for postretirement benefits   55      
Postretirement benefits, requisite service period   10      
Pension plan curtailment $ 25   $ 10 $ 17  
Effect of plan amendment on accumulated postretirement obligation       32 50
Scenario, Forecast [Member]
         
Amortization of prior service cost   10      
Amortization of net actuarial loss   0      
Amortization of net initial asset   2      
Continuing Operations [Member]
         
Pension plan curtailment 20     12  
Postretirement Health-Care And Life Insurance Plan [Member]
         
Pension plan curtailment       (12)  
Future plan benefit payments 2012   8      
Future plan benefit payments 2013   8      
Future plan benefit payments 2014   8      
Future plan benefit payments 2015   8      
Future plan benefit payments 2016   8      
Future plan benefit payments from 2017 to 2021   43      
Medicare Part D subsidy     $ 2