Other Financial Data (Other Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Other Assets:
Intangible assets, net (Note 14)	$ 821	$ 49
Non-current long-term receivables	49	47
Defined benefit plan assets	102	128
Other	49	47
Other assets	$ 1,021	$ 271