During the year ended December 31, 2018, the Company purchased $522 million in principal of iHeart Media, Inc. (“iHeart”) bonds for $389 million, resulting in the Company owning an aggregate amount of $660 million in principal of iHeart bonds as of December 31, 2018.
(b)
See note 10 for details regarding the acquisition of Time Warner, Inc. (“Time Warner”) by AT&T Inc. (“AT&T).
Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.