Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements Fair Value Hierarchy (Details)

v3.8.0.1
Fair Value Measurements Fair Value Hierarchy (Details) - Fair Value, Measurements, Recurring [Member]
$ in Millions
Mar. 25, 2018
USD ($)
Assets  
Cash equivalents $ 36,901
Marketable securities 1,658
Derivative instruments 7
Other investments 421
Total assets measured at fair value 38,987
Liabilities  
Derivative instruments 65
Other liabilities 602
Total liabilities measured at fair value 667
Level 1 [Member]  
Assets  
Cash equivalents 26,328
Marketable securities 50
Derivative instruments 0
Other investments 408
Total assets measured at fair value 26,786
Liabilities  
Derivative instruments 0
Other liabilities 408
Total liabilities measured at fair value 408
Level 2 [Member]  
Assets  
Cash equivalents 10,573
Marketable securities 1,573
Derivative instruments 7
Other investments 0
Total assets measured at fair value 12,153
Liabilities  
Derivative instruments 65
Other liabilities 0
Total liabilities measured at fair value 65
Level 3 [Member]  
Assets  
Cash equivalents 0
Marketable securities 35
Derivative instruments 0
Other investments 13
Total assets measured at fair value 48
Liabilities  
Derivative instruments 0
Other liabilities 194
Total liabilities measured at fair value 194
U.S. Treasury securities and government-related securities [Member]  
Assets  
Marketable securities 12
U.S. Treasury securities and government-related securities [Member] | Level 1 [Member]  
Assets  
Marketable securities 10
U.S. Treasury securities and government-related securities [Member] | Level 2 [Member]  
Assets  
Marketable securities 2
U.S. Treasury securities and government-related securities [Member] | Level 3 [Member]  
Assets  
Marketable securities 0
Corporate bonds and notes [Member]  
Assets  
Marketable securities 1,498
Corporate bonds and notes [Member] | Level 1 [Member]  
Assets  
Marketable securities 0
Corporate bonds and notes [Member] | Level 2 [Member]  
Assets  
Marketable securities 1,498
Corporate bonds and notes [Member] | Level 3 [Member]  
Assets  
Marketable securities 0
Mortgage- and asset-backed and auction rate securities [Member]  
Assets  
Marketable securities 108
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 73
Mortgage- and asset-backed and auction rate securities [Member] | Level 3 [Member]  
Assets  
Marketable securities 35
Equity and preferred securities and equity funds [Member]  
Assets  
Marketable securities 40
Equity and preferred securities and equity funds [Member] | Level 1 [Member]  
Assets  
Marketable securities 40
Equity and preferred securities and equity funds [Member] | Level 2 [Member]  
Assets  
Marketable securities 0
Equity and preferred securities and equity funds [Member] | Level 3 [Member]  
Assets  
Marketable securities $ 0