Annual report pursuant to Section 13 and 15(d)

Composition of Certain Financial Statement Items Other Comprehensive Income (Details)

v3.3.0.814
Composition of Certain Financial Statement Items Other Comprehensive Income (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 27, 2015
Sep. 28, 2014
Sep. 29, 2013
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance $ 634    
Accumulated other comprehensive income (loss), net of tax, ending balance 195 $ 634  
Investment income, net 815 1,233 $ 987
U.S. Treasury rate locks designated as cash flow hedges      
Gain deferred on U.S. Treasury rate locks $ 56    
Description of recognition of gain deferred on U.S. treasury rate locks recognized ratably over the 10- and 30-year lives of the underlying notes associated with the U.S. Treasury rate locks    
Foreign Currency Translation Adjustment      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance $ (113)    
Other comprehensive (loss) income, before reclassifications (47)    
Reclassifications from accumulated other comprehensive (loss) income 0    
Other comprehensive (loss) income (47)    
Accumulated other comprehensive income (loss), net of tax, ending balance (160) (113)  
Noncredit Other-than-Temporary Impairment Losses and Subsequent Changes in Fair Value for Certain Available-for-Sale Debt Securities      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance 24    
Other comprehensive (loss) income, before reclassifications (19)    
Reclassifications from accumulated other comprehensive (loss) income (1)    
Other comprehensive (loss) income (20)    
Accumulated other comprehensive income (loss), net of tax, ending balance 4 24  
Net Unrealized Gain (Loss) on Other Available-for-Sale Securities      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance 723    
Other comprehensive (loss) income, before reclassifications (215)    
Reclassifications from accumulated other comprehensive (loss) income (211)    
Other comprehensive (loss) income (426)    
Accumulated other comprehensive income (loss), net of tax, ending balance 297 723  
Net Unrealized Gain (Loss) on Derivative Instruments      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance 0    
Other comprehensive (loss) income, before reclassifications 54    
Reclassifications from accumulated other comprehensive (loss) income 0    
Other comprehensive (loss) income 54    
Accumulated other comprehensive income (loss), net of tax, ending balance 54 0  
Parent [Member]      
Changes in the components of accumulated other comprehensive income [Line Items]      
Accumulated other comprehensive income (loss), net of tax, beginning balance 634    
Other comprehensive (loss) income, before reclassifications (227)    
Reclassifications from accumulated other comprehensive (loss) income (212)    
Other comprehensive (loss) income (439)    
Accumulated other comprehensive income (loss), net of tax, ending balance 195 634  
Reclassification out of Accumulated Other Comprehensive Income [Member]      
Changes in the components of accumulated other comprehensive income [Line Items]      
Investment income, net $ 212 360  
Revenue, costs and expenses   $ 26