Investments (Tables)

3 Months Ended

Mar. 31, 2016

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, 2016 and December 31, 2015 (in millions):

	March 31, 2016		December 31, 2015
Debt securities	$	55	$	57
Equity securities	63		63
Total	$	118	$	120

Realized 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,
	2016			2015
Gains	$	5		$	—
Losses	(4		)	—
Net Gain	$	1		$	—