Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Summary of Significant Accounting Policies

Schedule of inventories, net

as of December 31 (in millions)	2013		2012
Finished goods	$	485	$	547
Work-in-process		404		286
Materials		261		258
Inventories, net	$	1,150	$	1,091

Schedule of property and equipment, net

as of December 31 (in millions)	2013			2012
Land	$	50		$	48
Buildings		1,263			1,324
Equipment		5,214			4,865
Construction in progress		382			305
Property and equipment, gross		6,909			6,542
Less accumulated depreciation		(4,611	)		(4,295	)
Property and equipment, net	$	2,298		$	2,247