RECEIVABLES AND INVENTORIES

Receivables

Receivables at December 31, 2014 and 2013 consisted of the following (in millions):



	2014			2013
Trade receivables	$	1,415		$	1,278
Tax receivables	15			16
Other receivables	19			32
Allowance for doubtful accounts	(14		)	(13		)
Total Receivables, Net	$	1,435		$	1,313

Inventories

Components of inventories at December 31, 2014 and 2013 were as follows (in millions):



	2014		2013
Domestic crude oil and refined products	$	1,930	$	1,847
Foreign subsidiary crude oil	351		523
Materials and supplies	120		117
Oxygenates and by-products	36		63
Merchandise	2		15
Total Inventories	$	2,439	$	2,565

The total carrying value of our crude oil and refined product inventories was less than replacement cost by approximately $1.7 billion at December 31, 2013. Due to the declining crude oil and refined product pricing environment at the end of 2014, we recorded additional expense to cost of sales for a lower of cost or market adjustment of $42 million at December 31, 2014 for our crude oil, refined products, oxygenates and by-product inventories.