Inventories (Tables)

12 Months Ended

Dec. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory [Table Text Block]

Inventories at December 31 were as follows (in millions):

	2015			2016
Raw materials, work-in-process, and supplies	$	4,005		$	3,843
Finished products	5,254			5,943
Total inventories under FIFO	9,259			9,786
LIFO adjustment	(940		)	(888		)
Total inventories	$	8,319		$	8,898