Inventories (Tables)

12 Months Ended

Dec. 31, 2018

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories are summarized as follows (in millions):

	December 31,
	2018		2017
Raw materials	$	1,888	$	1,880
Work in process	235		352
Finished goods	507		670
Total	$	2,630	$	2,902
Reported as:
Inventories	$	814	$	801
Other long-term assets	1,816		2,101
Total	$	2,630	$	2,902