Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Summary of Significant Accounting Policies

Schedule of inventories, net

as of December 31 (in millions)	2015		2014
Finished goods	$	469	$	341
Work-in-process		1,081		629
Raw materials		169		154
Inventories, net	$	1,719	$	1,124

Schedule of property and equipment, net

as of December 31 (in millions)	2015			2014
Land	$	46		$	48
Buildings		1,284			1,228
Equipment		5,656			5,324
Construction in progress		348			505
Property and equipment, gross		7,334			7,105
Less accumulated depreciation		(4,769	)		(4,620	)
Property and equipment, net	$	2,565		$	2,485