Deferred Charges and Other Assets

12 Months Ended

Dec. 31, 2015

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

DEFERRED CHARGES AND OTHER ASSETS

8. DEFERRED CHARGES AND OTHER ASSETS

“Deferred charges and other assets, net” consisted of the following (in millions):

	December 31,
	2015		2014
Deferred turnaround and catalyst costs, net	$	1,484	$	1,359
Income taxes receivable	266		182
Investments in joint ventures	201		78
Intangible assets, net	156		154
Re-imaging costs, net	154		141
Other	407		287
Deferred charges and other assets, net	$	2,668	$	2,201

Amortization expense for the deferred charges and other assets shown above was $542 million, $489 million, and $498 million for the years ended December 31, 2015, 2014, and 2013, respectively.