Investments (Tables)

3 Months Ended

Mar. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Trading Securities [Table Text Block]

The following table summarizes the fair value of investments held as of March 31, 2017 and December 31, 2016 (in millions):

	March 31, 2017		December 31, 2016
Debt securities	$	48	$	47
Equity securities	64		60
Total	$	112	$	107

Recognized Gain (Loss) on Investments [Table Text Block]

The following table presents gains and losses recognized in earnings for the Company (in millions):

	Three Months Ended March 31,
	2017		2016
Gains	$	4	$	5
Losses	—		(4		)
Net Gain	$	4	$	1