Net debt in billions among largest #stocks $SPX $SPY 1.  APPLE INC. $AAPL: 15.46 2.  MICROSOFT CORPORATIO. $MSFT: -71.02 3.   INC. $AMZN: -25.86 4.  ALPHABET INC. $GOOGL: -113.27 5.  FACEBOOK, INC. $FB: -60.01 United States United States United States United States United States