Boeing is raising $10 billion as a machinists' strike enters its fifth week.Advertisement In a regulatory filing Tuesday, the planemaker said it had entered a credit agreement with Bank of America, Citibank, Goldman Sachs, and JPMorgan Chase.It comes after Boeing announced on Friday plans to lay off 17,000 workers and a further delay to the launch of its much-anticipated 777X jet.This is a developing story. ...