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Cash Flow Information (Notes)
 12 Months Ended
Dec. 31, 2014
Supplemental Cash Flow Information [Abstract]  
Cash Flow Information
Cash Flow Information
Detail of supplemental disclosures of cash flow and non-cash investing and financing information was:
 
Year Ended December 31,
 
2014
 
2013
 
2012
 
(In millions)
Interest paid, net of amount capitalized
$
1,067

 
$
836

 
$
579

Income taxes (refunded)/paid (a)
(6
)
 
(60
)
 
17

Consent fee paid, preferred stock
5

 
—

 
—

Non-cash investing and financing activities:
 
 
 
 
 
Additions to fixed assets for accrued capital expenditures
87

 
405

 
563

Decrease to fixed assets for accrued grants and related tax impact
(711
)
 
(681
)
 
(87
)
Issuance of shares for EME acquisition
(401
)
 
—

 
—

Issuance of shares for GenOn acquisition
—

 
—

 
(2,188
)

(a) In 2014, the net income taxes refunded are net of $15 million income taxes paid and $21 million income tax refunds. In 2013, the net income taxes refunded are net of $28 million income taxes paid and $87 million income tax refunds. No tax refunds were received in 2012.