XML 106 R27.htm IDEA: XBRL DOCUMENT v2.4.0.6
Restructuring and Other Charges (Tables)
12 Months Ended
Dec. 31, 2011
Restructuring and Other Charges [Abstract]  
Roll Forward of Restructuring Reserve
                                                   
    December 31,
2010
Restructuring
Reserve
  2011
Expenses
  2011
Cash
Payments
  Reserve
Adjustments
  December 31,
2011
Restructuring
Reserve
    (Millions)

Severance

      $7         8         (13 )       (1 )       $1