https://www.reuters.com/article/us-time-warner-m-a-at-t/att-ceo-says-ready-to-invest-keep-culture-at-time-warner-cnbc-idUSKBN1JB2A4 >AT&T Inc is committed to spend as much as needed on the media business of newly acquired Time Warner Inc, Chief Executive Randall Stephenson told CNBC on Friday, with a plan to invest $21 billion to $22 billion in the combined company.