Note 5. Earnings Per Common Share (Detail) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2011
Common Stock, Shares Authorized	500,000,000	500,000,000
Common Stock, Par or Stated Value Per Share (in Dollars per share)	0.25	0.25
Common Stock, Shares, Issued	279,512,363	279,512,363
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		876,240
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	552,388	333,388