India, Oct. 1 -- Actor Nicole Kidman and Keith Urban's split after nearly two decades together has shocked fans. Now, it is being revealed that Nicole is "furious" over the terms of her prenuptial agreement with Keith, which could allow the singer to take home over $11 million following their separation because of a due to a drug-related clause.

According to RadarOnline.com, the 58-year-old actor and the 57-year-old singer signed the prenup agreement before their 2006 wedding. The agreement entitles Keith to $600,000 for every year of marriage - on the condition that he remained sober.

After 19 years together, insiders claim Nicole is now "consumed with anger" that Keith now stands to collect the full amount, which is reportedly $11.4 m...