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Defined Benefit Postretirement Plans (Tables)
9 Months Ended
Sep. 30, 2011
Defined Benefit Postretirement Plans Note Tables [Abstract] 
Schedule Of Defined Benefit Plans Disclosures [Text Block]
 Three Months Ended September 30,
 Pension Benefits Other Benefits
(In millions)2011 2010 2011 2010
Service cost$12 $12 $1 $0
Interest cost 17  17  4  4
Expected return on plan assets (16)  (16)  0  0
Amortization:           
– prior service cost (credit) 1  2  (2)  (2)
– actuarial loss 12  12  0  0
– net settlement 0  8  0  0
Net periodic benefit cost$26 $35 $3 $2

 Nine Months Ended September 30,
 Pension Benefits Other Benefits
(In millions)2011 2010 2011 2010
Service cost$35 $35 $3 $2
Interest cost 50  52  12  12
Expected return on plan assets (49)  (48)  0   -
Amortization:           
– prior service cost (credit) 4  5  (5)  (5)
– actuarial loss 37  37  0   -
– net settlement/curtailment loss 0  8  0  0
Net periodic benefit cost$77 $89 $10 $9