By Echo Wang (Reuters) – Wall Street stocks declined on Monday on a slide in bank stocks and shares of Apple, after a report said the company plans to slow hiring and spending growth next year. The S&P 500 financial sector was down 0.16% despite earnings from big banks beating profit expectations. Apple shares reversed course to trade down 1.8% at $147.4 on a Bloomberg report that said the company plans to slow hiring and spending growth next year in some units to cope with a potential economic downturn. Goldman Sachs Group Inc advanced 2.1% as it reported a smaller-than-expected 48% slump in …