XML 40 R12.htm IDEA: XBRL DOCUMENT v3.3.1.900
Accumulated Other Comprehensive Income (Notes)
 12 Months Ended
Dec. 31, 2015
Other Comprehensive Income [Abstract]  
Accumulated Other Comprehensive Income
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
 
Commodity cash flow hedges
 
Long-term invest.
 
Total
 
Actuarial loss
 
Prior service cost
 
Total
 
Act. loss and prior serv. cost
 
 
 
 
 
(in millions)
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
)
OCI before reclassifications
0.6

 
—

 
0.6

 
1.8

 
—

 
1.2

 
—

 
3.6

Reclassified from AOCI(1)(3)
21.9

 
0.1

 
22.0

 
1.2

 
0.6

 
(1.4
)
 
—

 
22.4

Income taxes
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
OCI before reclassifications
(0.2
)
 
—

 
(0.2
)
 
(0.7
)
 
—

 
(0.4
)
 
—

 
(1.3
)
Reclassified from AOCI(2)(4)
(8.4
)
 
—

 
(8.4
)
 
(0.5
)
 
(0.3
)
 
0.5

 
—

 
(8.7
)
Total income taxes
(8.6
)
 
—

 
(8.6
)
 
(1.2
)
 
(0.3
)
 
0.1

 
—

 
(10.0
)
Net other comprehensive income (loss)
13.9

 
0.1

 
14.0

 
1.8

 
0.3

 
(0.1
)
 
—

 
16.0

Balances at December 31, 2015
$
(153.9
)
 
$
0.1

 
$
(153.8
)
 
$
(9.3
)
 
$
(22.2
)
 
$
(0.1
)
 
$
0.1

 
$
(185.3
)


(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.
(3) Commodity cash flow hedge amounts are included in their entirety as an increase in Questar Pipeline revenue on the Consolidated Statements of Income.
(4) Income tax reclassifications related to commodity cash flow hedge amounts are included in their entirety as charges 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 14 for additional details.

Disclosures regarding interest rate and commodity-based cash flow hedges, including income taxes and income statement reclassification effects, apply to Questar Pipeline. The commodity cash flow hedge amounts reclassified from AOCI (pre-tax) are included in their entirety as an increase in Questar Pipeline revenue on the Questar Pipeline income statement; $1.0 million is included in revenues from unaffiliated customers and $0.4 million is included in revenues from affiliated companies.