EDIT: for clarity, I build RESTful API back-ends on AWS and support them with DevOps; I can see how my method may not work for other industries.
OTOH, a while back I had a client that told me to stop detailing everything on my invoices. They just wanted a total number of hours. I think maybe it had to do with the review process upstream. Fewer details gave the higher ups less to scrutinize and complain about, I guess. And none of the other contractors were providing such detail.