Deloitte released two PDF documents that detail the pending accounting update to reporting leases (ASC 842). The executive summary does an excellent job of summarizing the change in just 8 informative slides. Per the introduction, this revision will have a substantial impact on company balance sheets:
“Practitioners have estimated that $2 trillion of lease liability (with corresponding recognition of leased assets) will be recorded to S&P 500 balance sheets as a result of the application of the new leasing guidance.”
For most I recommend the executive summary over the unabridged 754 page version available at the link below.