Amazon reports a massive $42.4B trailing 12-month cash burn as Q3 capex reaches $77.3B. • AWS: $46.0B, +39% YoY • Advertising: $19.6B, +12% YoY • Q4 Net Sales Guide: $240B to $247B Cloud demand is accelerating, but heavy AI infrastructure spending continues to swallow free cash flow. Shares slid in extended trading.