AT&T took the top spot, with an eye-popping $1.59 billion for television, radio, print, outdoor, and online display ads.
Even Budweiser, at the bottom of this top 25 list, spent an impressive $449 million.
What Ad Age doesn't include is spending on mobile marketing and other digital spending.
Mobile spending alone is projected to increase by double-digits this year and next year as the number of smartphone users continues to rise.
Social media marketing is becoming an ever-larger part of the budget, as well. Procter & Gamble, for instance, has shifted money to boost its investment in digital and mobile marketing. "The bottom line is we need and want to be where the consumer is, and increasingly that is online and mobile," a spokesperson explains. It's not the only company to do this--Home Depot and many others are thinking the same thing. This shift will change how and where America's biggest advertisers invest their marketing budgets in 2014 and beyond.