In 2018, CVS Health corporation reported a $6.1 billion charge for the impairment of goodwill its reporting unit (segment)in its 10-K annual report. Referring to CVS Health 's 2018 financial statement and any other information from the media , address the following :

1-CVS 's segments serve as its reporting units for assessing goodwill for potential impairments. Which segment suffered a 2018 impairment? Describe the revenue model for this segment.

2. What were the underlying business reasons that required CVS health to record a goodwill impairment in 2018?

3-How did CVS health reflect he 2018 goodwill impairment in its income statement and cash flow statement ?

4-Describe in your won words the goodwill impairment testing steps performed by CVS Health in 2018 and the consequent loss measurement .