XBRL-based structured digital financial reporting - Blog: Digital Financial Reporting (using XBRL)

(These URLs will be deprecated soon, please see these improved examples here.)

Here are some more awesome rendering examples:

General information summary for the DOW 30, this is interesting
Cash flow statement summaries of the DOW 30, note that every one of these foots correctly
Net cash flow breakdown between continuing and discontinued for the DOW 30
Balance sheet summaries of the DOW 30, this shows an error where the filer reports an unclassified balance sheet which really is not an error
Multi-step income statement comparison for DOW 30, however not everyone in the DOW 30 reports using a multi-step income statement so this does not work very well
Comprehensive income for DOW 30
Comprehensive income breakdown for DOW 30, has a few errors
Net income (loss) breakdown between parent and noncontrolling interest for DOW 30
Net income (loss) breakdown available to preferred/common for DOW 30
Key ratios for the DOW 30, not sure if this is correct, need to look at the detail to see if each of the values is correct

We are making progress folks! These same comparisons can be done for the Fortune 100, S&P 500, Russell 1000, or any other set of entities. Thank you to 28msec for making these available to me!