Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001124610 (http://www.sec.gov/CIK)

Segment Reporting [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Segment Reporting [Abstract]
Schedule of Revenue by Geographic Area	Revenue by geographic area for the years ended December 31, 2016, 2015 and 2014 was as follows (table in millions):   For the Year Ended December 31,   2016   2015   2014 United States $ 3,588   $ 3,311   $ 2,912 International 3,505   3,260   3,123 Total $ 7,093   $ 6,571   $ 6,035
Schedule of Long-Lived Assets by Geographic Area	Long-lived assets by geographic area, which primarily include property and equipment, net, as of December 31, 2016 and 2015 were as follows (table in millions):   December 31,   2016   2015 United States $ 784   $ 831 International 132   148 Total $ 916   $ 979