United Airlines Says Q2 Ending Available Liquidity Of $19.6B; Since The Beginning Of Q2 The Company Pre-Paid ~$1B Of Higher Cost Debt; Expects Q4 Capacity To Decline From Current Published Schedules As Part Of Normal Course, Including Extension Of FAA Order At Ord; Expects Nearly $6B In Added Fuel Expense For Full-Year 2026 Compared To The Expectation At The Start Of The Year