Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements Fair Value Hierarchy (Details)

v3.3.1.900
Fair Value Measurements Fair Value Hierarchy (Details) - Fair Value, Measurements, Recurring [Member]
$ in Millions
Dec. 27, 2015
USD ($)
Assets  
Cash equivalents $ 6,211
Marketable securities 23,678
Derivative instruments 18
Other investments 306
Total assets measured at fair value 30,213
Liabilities  
Derivative instruments 6
Other liabilities 306
Total liabilities measured at fair value 312
Level 1 [Member]  
Assets  
Cash equivalents 2,364
Marketable securities 1,208
Derivative instruments 0
Other investments 306
Total assets measured at fair value 3,878
Liabilities  
Derivative instruments 0
Other liabilities 306
Total liabilities measured at fair value 306
Level 2 [Member]  
Assets  
Cash equivalents 3,847
Marketable securities 22,296
Derivative instruments 18
Other investments 0
Total assets measured at fair value 26,161
Liabilities  
Derivative instruments 6
Other liabilities 0
Total liabilities measured at fair value 6
Level 3 [Member]  
Assets  
Cash equivalents 0
Marketable securities 174
Derivative instruments 0
Other investments 0
Total assets measured at fair value 174
Liabilities  
Derivative instruments 0
Other liabilities 0
Total liabilities measured at fair value 0
U.S. Treasury securities and government-related securities [Member]  
Assets  
Marketable securities 1,003
U.S. Treasury securities and government-related securities [Member] | Level 1 [Member]  
Assets  
Marketable securities 89
U.S. Treasury securities and government-related securities [Member] | Level 2 [Member]  
Assets  
Marketable securities 914
U.S. Treasury securities and government-related securities [Member] | Level 3 [Member]  
Assets  
Marketable securities 0
Corporate bonds and notes [Member]  
Assets  
Marketable securities 15,810
Corporate bonds and notes [Member] | Level 1 [Member]  
Assets  
Marketable securities 0
Corporate bonds and notes [Member] | Level 2 [Member]  
Assets  
Marketable securities 15,810
Corporate bonds and notes [Member] | Level 3 [Member]  
Assets  
Marketable securities 0
Mortgage- and asset-backed and auction rate securities [Member]  
Assets  
Marketable securities 1,917
Mortgage- and asset-backed and auction rate securities [Member] | Level 1 [Member]  
Assets  
Marketable securities 0
Mortgage- and asset-backed and auction rate securities [Member] | Level 2 [Member]  
Assets  
Marketable securities 1,743
Mortgage- and asset-backed and auction rate securities [Member] | Level 3 [Member]  
Assets  
Marketable securities 174
Equity and preferred securities and equity funds [Member]  
Assets  
Marketable securities 1,495
Equity and preferred securities and equity funds [Member] | Level 1 [Member]  
Assets  
Marketable securities 1,119
Equity and preferred securities and equity funds [Member] | Level 2 [Member]  
Assets  
Marketable securities 376
Equity and preferred securities and equity funds [Member] | Level 3 [Member]  
Assets  
Marketable securities 0
Debt funds [Member]  
Assets  
Marketable securities 3,453
Debt funds [Member] | Level 1 [Member]  
Assets  
Marketable securities 0
Debt funds [Member] | Level 2 [Member]  
Assets  
Marketable securities 3,453
Debt funds [Member] | Level 3 [Member]  
Assets  
Marketable securities $ 0