6. Prepaid Expenses and Other Assets

Prepaid expenses and other current assets consist of the following at December 31, 2015 and 2014:


	2015		2014
Prepaid expenses	$	52	$	40
Value added taxes		195		71
Other		119		163
	$	366	$	274

In conjunction with the Vitro Acquisition, part of the total consideration paid by the Company relates to a value added tax receivable of approximately $143 million. This amount is included in “Value added taxes” above and is expected to be refunded to the Company in approximately twelve months.

Other assets (noncurrent) consist of the following at December 31, 2015 and 2014:


	2015		2014
Deferred tax assets	$	177	$	203
Deferred returnable packaging costs		110		126
Repair part inventories		118		107
Capitalized software		86		101
Value added taxes		17		58
Deferred finance fees		6		7
Other		85		83
	$	599	$	685

Capitalized software includes costs related to the acquisition and development of internal-use software. These costs are amortized over the estimated useful life of the software. Amortization expense for capitalized software was $19 million, $17 million and $14 million for 2015, 2014 and 2013, respectively. Estimated amortization related to capitalized software through 2020 is as follows: 2016, $17 million; 2017, $16 million; 2018, $15 million; 2019, $13 million; and 2020, $11 million.