Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Millions, unless otherwise specified	Apr. 29, 2012	Oct. 30, 2011
Assets:
Total	$ 2,552	$ 6,815
Liabilities
Deferred compensation	7	0
Total	7	0
Money market funds [Member]
Assets:
Investment securities	1,141	5,663
U.S. Treasury and agency securities [Member]
Assets:
Investment securities	303	185
Non-U.S. government securities [Member]
Assets:
Investment securities	22	40
Municipal securities [Member]
Assets:
Investment securities	397	373
Commercial paper, corporate bonds and medium-term notes [Member]
Assets:
Investment securities	317	218
Asset-backed and mortgage-backed securities [Member]
Assets:
Investment securities	303	309
Publicly traded equity securities [Member]
Assets:
Investment securities	69	27
Level 1 [Member]
Assets:
Total	1,303	5,799
Liabilities
Deferred compensation	7	0
Total	7	0
Level 1 [Member] | Money market funds [Member]
Assets:
Investment securities	1,141	5,663
Level 1 [Member] | U.S. Treasury and agency securities [Member]
Assets:
Investment securities	93	109
Level 1 [Member] | Non-U.S. government securities [Member]
Assets:
Investment securities	0	0
Level 1 [Member] | Municipal securities [Member]
Assets:
Investment securities	0	0
Level 1 [Member] | Commercial paper, corporate bonds and medium-term notes [Member]
Assets:
Investment securities	0	0
Level 1 [Member] | Asset-backed and mortgage-backed securities [Member]
Assets:
Investment securities	0	0
Level 1 [Member] | Publicly traded equity securities [Member]
Assets:
Investment securities	69	27
Level 2 [Member]
Assets:
Total	1,249	1,016
Liabilities
Deferred compensation	0	0
Total	0	0
Level 2 [Member] | Money market funds [Member]
Assets:
Investment securities	0	0
Level 2 [Member] | U.S. Treasury and agency securities [Member]
Assets:
Investment securities	210	76
Level 2 [Member] | Non-U.S. government securities [Member]
Assets:
Investment securities	22	40
Level 2 [Member] | Municipal securities [Member]
Assets:
Investment securities	397	373
Level 2 [Member] | Commercial paper, corporate bonds and medium-term notes [Member]
Assets:
Investment securities	317	218
Level 2 [Member] | Asset-backed and mortgage-backed securities [Member]
Assets:
Investment securities	303	309
Level 2 [Member] | Publicly traded equity securities [Member]
Assets:
Investment securities	$ 0	$ 0