Other Financial Data Schedule of Other Non-current Assets (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Other Financial Data [Abstract]
Prepaid pension	$ 567	$ 340
Deferred project costs	273	260
Taxes	108	84
Other	282	232
Total Other Non-Current Assets	$ 1,230	$ 916