Note 4. Property, Plant and Equipment Property, plant and equipment consisted of the following:
	As of September 30,			As of December 31,
	2017			2016
	(in millions)

Land and land improvements	$	469		$	471
Buildings and building improvements		2,971			2,801
Machinery and equipment		11,179			10,302
Construction in progress		1,014			1,113

		15,633			14,687
Accumulated depreciation		(7,095	)		(6,458	)

Property, plant and equipment, net	$	8,538		$	8,229

For the nine months ended September 30, 2017, capital expenditures of $721 million excluded $220 million of accrued capital expenditures remaining unpaid at September 30, 2017 and included payment for a portion of the $343 million of capital expenditures that were accrued and unpaid at December 31, 2016. For the nine months ended September 30, 2016, capital expenditures of $909 million excluded $274 million of accrued capital expenditures remaining unpaid at September 30, 2016 and included payment for $322 million of capital expenditures that were accrued and unpaid at December 31, 2015.

In connection with our restructuring program, we recorded non-cash asset write-downs (including accelerated depreciation and asset impairments) of $46 million in the three months and $164 million in the nine months ended September 30, 2017 and $120 million in the three months and $233 million in the nine months ended September 30, 2016 (see Note 6, 2014-2018 Restructuring Program). These charges were recorded in the condensed consolidated statements of earnings within asset impairment and exit costs and in the segment results as follows:


	For the Three Months Ended				For the Nine Months Ended
	September 30,				September 30,
	2017		2016		2017		2016
	(in millions)

Latin America	$	13	$	3	$	25	$	16
AMEA		20		9		62		30
Europe		10		49		52		87
North America		3		59		25		98
Corporate		–		–		–		2

Total non-cash asset write-downs	$	46	$	120	$	164	$	233