I disagree as well. Of course, "good" is subjective but this doesn't look great:
(from http://www.bls.gov/news.release/ebs.t05.htm)
Table 5. Average paid holidays and days of vacation and sick leave for full-time
employees in small private establishments, 1996
Professional,
All technical, Clerical Blue-collar
Leave category full-time and and sales and service
employees related employees(2) employees(3)
employees(1)
For professional, technical, and related employees, it looks like starting at two weeks and moving up to three or four after some time is the most common, which agrees with my experience.
Sorry, I didn't catch that this data is for small establishments and you specifically said big. I can't immediately find this data from the BIS so disregard it if you like.