Restructuring-Related Liabilities: (Details 1) (Prior to 2006 Restructuring Plans, Related to Current Liabilites, USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Restructuring Reserve
Current liability at the beginning of the period	$ 27
Payments	(15)
Other Adjustments	16	[1]
Current liability at the end of the period	29
Workforce
Restructuring Reserve
Current liability at the beginning of the period	27
Payments	(15)
Other Adjustments	16	[1]
Current liability at the end of the period	$ 29

[1] Other Adjustments principally includes the reclassification of noncurrent to current, remeasurement of actuarial assumptions, foreign currency translation adjustments and interest accretion.