Other Financial Data Schedule of Non-current Assets (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
Other Financial Data [Abstract]
Prepaid pension	$ 750	[1]	$ 567	[1]
Deferred project costs	256		273
Deferred tax assets	176		193
Taxes receivable	98		108
Other	251		282
Other Assets, Noncurrent	$ 1,531		$ 1,423

[1] Increase in prepaid pensions is primarily due to cash funding of the U.K. pension plans.