Intangibles and Goodwill - Additional Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill [Line Items]
Portion of acquisition price attributable to intangible assets	$ 0	$ 0	$ 151
Amortization expense on intangible assets	389	365	342
All Technology Companies | Patents
Goodwill [Line Items]
Payments to acquire intangible asset portfolio			450
EMC | Patents
Goodwill [Line Items]
Payments to acquire intangible asset portfolio			113
Assigned useful life (in years)			10 years
VMware Roche Transaction
Goodwill [Line Items]
Payments to acquire ground lease			225
Portion of acquisition price attributable to property, plant and equipment, net			74
VMware Roche Transaction | Leasehold interest
Goodwill [Line Items]
Portion of acquisition price attributable to intangible assets			151
Intangible Assets, Net | VMware Roche Transaction | Leasehold interest
Goodwill [Line Items]
Portion of acquisition price attributable to intangible assets			$ 147