Enlarge / AT&T will actually need a much bigger piggy bank to fund this $85.4 billion merger. (credit: Getty | Aurich) AT&T and Time Warner Inc. have made their rumored merger official, with AT&T to purchase the media company for $85.4 billion in cash and stock. The total transaction value is $108.7 billion when factoring in Time Warner's debt. AT&T's announcement Saturday evening listed some of the many media properties the company will own if the merger is allowed by US regulators.