Other Income, Net (Tables)

3 Months Ended

Mar. 31, 2018

Other Income and Expenses [Abstract]

Schedule of Other Income [Table Text Block]

The amounts included in Other income, net for the periods ended March 31 were as follows (in millions):

	First Quarter
	2017			2018
Gains / (Losses) on derivatives	$	32		$	(87	)
Currency revaluation gains / (losses)	(34		)	62
Interest and investment income	23			42
Other	9			20
Total other income, net	$	30		$	37