How SEC Filers Actually Report Cost of Revenue in XBRL — And Why Standard Extraction Misses $229 Billion
Our analysis of 2,100+ SEC filers reveals that cost of revenue reporting in XBRL is even more fragmented than revenue. Only 38% of filers use the most common element (CostOfGoodsAndServicesSold), 36% have no standard COGS element at all, and ExxonMobil's $199.5 billion in crude oil purchases is invisible to standard extraction — producing a misleading 100% gross margin.
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