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Asset Retirement Obligations (Tables)
 12 Months Ended
Dec. 31, 2013
Asset Retirement Obligation [Abstract]  
Changes to Asset Retirement Obligations
The changes to AROs during 2012 and 2013 were as follows:
 
 
Amount

(millions)
 
Dominion
 
AROs at December 31, 2011(1)
$
1,398

Obligations incurred during the period
24

Obligations settled during the period
(13
)
Revisions in estimated cash flows(2)
242

Accretion
77

Other
(23
)
AROs at December 31, 2012(1)
$
1,705

Obligations incurred during the period
13

Obligations settled during the period
(68
)
Revisions in estimated cash flows(3)
(129
)
Accretion
86

Other
(29
)
AROs at December 31, 2013(1)
$
1,578

 
 
Virginia Power
 

AROs at December 31, 2011(4)
$
625

Obligations incurred during the period
18

Obligations settled during the period
(1
)
Revisions in estimated cash flows(5)
41

Accretion
34

Other
(12
)
AROs at December 31, 2012
$
705

Obligations incurred during the period
2

Obligations settled during the period
(2
)
Revisions in estimated cash flows(3)
(52
)
Accretion
38

Other
(2
)
AROs at December 31, 2013
$
689

(1)
Includes $15 million, $64 million and $94 million reported in other current liabilities at December 31, 2011, 2012, and 2013, respectively.
(2)
Primarily reflects the accelerated timing of the decommissioning of Kewaunee that began in 2013.
(3)
Primarily reflects lower anticipated nuclear decommissioning costs.
(4)
Includes $1 million reported in other current liabilities.
(5)
Primarily reflects the effect of higher anticipated nuclear decommissioning costs.