Consolidated Balance Sheets Consolidated Balance Sheets Parentheticals (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Stockholders' Equity Attributable to Parent [Abstract]
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized	750	750
Common Stock, Shares, Issued	357	357
Common Stock, Shares, Outstanding	357	357