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Accumulated Other Comprehensive Income (Notes)
 12 Months Ended
Dec. 31, 2014
Other Comprehensive Income [Abstract]  
Other Comprehensive Income
Note 3 - Accumulated Other Comprehensive Income

Details of the changes in the components of AOCI, net of income taxes, as reported in Questar's Consolidated Statements of Common Shareholders' Equity, are shown in the tables below. The tables also disclose details of income taxes related to each component of OCI:
 
Pension
 
OPB
 
Interest rate cash flow hedges
 
Long-term invest.
 
Total
 
Actuarial loss
 
Prior service cost
 
Total
 
Actuarial loss
 
 
 
 
(in millions)
Balances at December 31, 2012
$
(202.4
)
 
$
(1.1
)
 
$
(203.5
)
 
$
(19.7
)
 
$
(23.2
)
 
$
0.1

 
$
(246.3
)
OCI before reclassifications
123.4

 
—

 
123.4

 
12.4

 
—

 
(0.1
)
 
135.7

Reclassified from AOCI(1)
28.9

 
1.1

 
30.0

 
3.0

 
0.5

 
—

 
33.5

Income taxes
 
 
 
 
 
 
 
 
 
 
 
 
 
OCI before reclassifications
(47.2
)
 
—

 
(47.2
)
 
(4.7
)
 
—

 
0.1

 
(51.8
)
Reclassified from AOCI(2)
(11.1
)
 
(0.4
)
 
(11.5
)
 
(1.2
)
 
(0.2
)
 
—

 
(12.9
)
Total income taxes
(58.3
)
 
(0.4
)
 
(58.7
)
 
(5.9
)
 
(0.2
)
 
0.1

 
(64.7
)
Net other comprehensive income
94.0

 
0.7

 
94.7

 
9.5

 
0.3

 
—

 
104.5

Balances at December 31, 2013
(108.4
)
 
(0.4
)
 
(108.8
)
 
(10.2
)
 
(22.9
)
 
0.1

 
(141.8
)
OCI before reclassifications
(111.5
)
 
—

 
(111.5
)
 
(2.1
)
 
—

 
—

 
(113.6
)
Reclassified from AOCI(1)
15.4

 
0.6

 
16.0

 
0.7

 
0.5

 
—

 
17.2

Income taxes
 
 
 
 
 
 
 
 
 
 
 
 
 
OCI before reclassifications
42.6

 
—

 
42.6

 
0.8

 
—

 
—

 
43.4

Reclassified from AOCI(2)
(5.9
)
 
(0.2
)
 
(6.1
)
 
(0.3
)
 
(0.1
)
 
—

 
(6.5
)
Total income taxes
36.7

 
(0.2
)
 
36.5

 
0.5

 
(0.1
)
 
—

 
36.9

Net other comprehensive income (loss)
(59.4
)
 
0.4

 
(59.0
)
 
(0.9
)
 
0.4

 
—

 
(59.5
)
Balances at December 31, 2014
$
(167.8
)
 
$
—

 
$
(167.8
)
 
$
(11.1
)
 
$
(22.5
)
 
$
0.1

 
$
(201.3
)


(1) Interest rate cash flow hedge amounts are included in their entirety as charges to interest expense on the Consolidated Statements of Income.
(2) Income tax reclassifications related to interest rate cash flow hedge amounts are included in their entirety as credits to income taxes on the Consolidated Statements of Income.

Pension and other postretirement benefit AOCI reclassifications are included in the computation of net periodic pension and postretirement benefit costs. See Note 13 for additional details.

Income taxes allocated to each component of Questar's consolidated OCI for the year ended December 31, 2012 are shown below. Expenses are in parentheses.
 
Year Ended December 31,
 
2012
 
(in millions)
Change in unrecognized actuarial loss
$
13.6

Change in unrecognized prior service cost
(1.0
)
Interest rate cash flow hedges
(0.2
)
Change in fair value of long-term investment
(0.1
)
Income taxes
$
12.3



Disclosures regarding interest rate cash flow hedges, including income taxes and income statement reclassification effects, apply to Questar Pipeline. There were no significant changes in Questar Pipeline AOCI during 2012.