In the context of this series of interconnected finance-related queries and the additional information provided by the pretext, table data, and posttext from a company's financial filings, please provide a response to the final question. This may require extracting information from the context and performing mathematical calculations. Please take into account the information provided in the preceding questions and their answers when formulating your response:
Context: the following table provides the weighted average assumptions used in the black-scholes option-pricing model for grants and the resulting weighted average grant date fair value per share of stock options granted for the years ended december 31: . <table class='wikitable'><tr><td>1</td><td></td><td>2018</td><td>2017</td><td>2016</td></tr><tr><td>2</td><td>intrinsic value</td><td>$ 9</td><td>$ 10</td><td>$ 18</td></tr><tr><td>3</td><td>exercise proceeds</td><td>7</td><td>11</td><td>15</td></tr><tr><td>4</td><td>income tax benefit realized</td><td>2</td><td>3</td><td>6</td></tr></table> stock units during 2018 , 2017 and 2016 , the company granted rsus to certain employees under the 2007 plan and 2017 omnibus plan , as applicable . rsus generally vest based on continued employment with the company over periods ranging from one to three years. .
Conversations: 
Question: what is the intrinsic value in 2018?
Answer: