The U.S. government will become the majority stockholder in General Motors after completion of the bankruptcy filing. The pie chart above shows what will then be the percentage of American companies owned by the United States (0.05%, in yellow), compared to the percentage not owned by the United States (99.95%, in blue).
The discussion thread at the link will be way better than any comments here.
Credit to Conor Clarke, writing in the Atlantic's business channel. Via Yglesias.