Other Financial Data Schedule of Other Non-current Liabilities (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Other Financial Data [Abstract]
Deferred tax liabilities	$ 535	$ 420
Taxes payable	202	184
Leases	191	204
Deferred revenue	170	134
Compensation and benefits	56	105
Other	268	305
Other Liabilities, Noncurrent	$ 1,422	$ 1,352