Delta would use savings from a lower US corporate tax rate to buy new equipment and pay down some of its debt, the carrier's CE said Wednesday, as congressional Republicans work to push forward a tax cut bill. "We've had a philosophy - for every dollar of cash we make, we take 50% and put it back in the business. So investing in new equipment, investing in new airports, more airplanes for the airline," Ed Bastian said. Bastian said that additional relief from the current rate would "certainly enable us to pay our people more," while the rest of the savings would be used to pay down some of the airline's bills. Delta and other companies have expressed support for Republican proposals to trim the corporate tax rate to 20% from 35%, which they say would allow them to create more jobs and invest more resources in employees. <br/>