Please find the following Solvency ratios from GM based on 2014, link to their website http://www.marketwatch.com/investing/stock/gm/financials

Debt to total assets ratio = total liabilities/ total assets

Cash Debt Ratio Coverage Ratio = cash provided by operations/ average total liabilities

Times interest earned ratio = net income+interest expense+tax expense/ interest expense

Free Cash Flow = Cash provided by operations – capital expenditures – cash dividends