Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: Exxon Mobil Chairman and CEO Darren Woods  made the announcement in a blog post on Monday (full text below).
"At ExxonMobil   we  plan to invest more than $50 billion over the next five years to expand  our  business in the United States " writes  Woods . "These investments are underpinned by the unique strengths of our company and enhanced by the historic tax reform recently signed into law."
 Woods  notes the Exxon is not alone in its plans to reinvest in America and American workers in response to the massive corporate tax cut  which Republicans slashed from 35% to 21%.
 Woods  goes on to detail ways  his  company will invest those tens of billions in the U.S.:

TRUMP BOOM: Exxon Mobil Announces Biggest Response To GOP Tax Cut Yet