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Supplemental Cash Flow Information (Tables)
 6 Months Ended
Jun. 30, 2012
Supplemental Cash Flow Elements [Abstract]  
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
The following provides detail of the changes in assets and liabilities that are reported in the Consolidated Statements of Cash Flows (in millions):
 
Six Months Ended
 
June 30
 
2012
 
2011
Changes in Assets and Liabilities, Exclusive of Changes Shown Separately
 
 
 
Accounts receivable, net
$
(102
)
 
$
(35
)
Inventories
3

 
(21
)
Accrued pension liability — affiliates
(55
)
 
(178
)
Accounts payable
(1
)
 
(1
)
Accrued PSCR refund
63

 
(33
)
Income taxes receivable/payable
102

 
66

Postretirement obligation — affiliates
(93
)
 
(31
)
Other assets
186

 
85

Other liabilities
(59
)
 
(72
)
 
$
44

 
$
(220
)