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Accumulated Other Comprehensive Income
 12 Months Ended
Dec. 31, 2014
Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income

The following tables provide changes in the balances of each component of accumulated other comprehensive income, net of tax, for the periods ended December 31, 2014, 2013 and 2012:
2014
Unrealized Gains and Losses
On Available-for-Sale
Securities
 
Postretirement
Benefits Plans
 
 
Total
Beginning balance at January 1
$
11,395,757

 
$
(48,353
)
 
$
11,347,404

Other comprehensive income (loss) before reclassifications
1,874,111

 
(31,100
)
 
1,843,011

Amounts reclassified from accumulated other comprehensive income (loss)
(335,371
)
 
1,465

 
(333,906
)
Net current-period other comprehensive income (loss)
1,538,740

 
(29,635
)
 
1,509,105

Ending balance
$
12,934,497

 
$
(77,988
)
 
$
12,856,509

2013
Unrealized Gains and Losses
On Available-for-Sale
Securities
 
Postretirement
Benefits Plans
 
 
Total
Beginning balance at January 1
$
8,920,884

 
$
(102,454
)
 
$
8,818,430

Other comprehensive income before reclassifications
2,605,184

 
50,961

 
2,656,145

Amounts reclassified from accumulated other comprehensive income
(130,311
)
 
3,140

 
(127,171
)
Net current-period other comprehensive income
2,474,873

 
54,101

 
2,528,974

Ending balance
$
11,395,757

 
$
(48,353
)
 
$
11,347,404

2012
Unrealized Gains and Losses
On Available-for-Sale
Securities
 
Postretirement
Benefits Plans
 
 
Total
Beginning balance at January 1
$
7,563,541

 
$
(54,376
)
 
$
7,509,165

Other comprehensive income (loss) before reclassifications
2,032,134

 
(54,726
)
 
1,977,408

Amounts reclassified from accumulated other comprehensive income (loss)
(674,791
)
 
6,648

 
(668,143
)
Net current-period other comprehensive income (loss)
1,357,343

 
(48,078
)
 
1,309,265

Ending balance
$
8,920,884

 
$
(102,454
)
 
$
8,818,430



The following tables provide significant amounts reclassified out of each component of accumulated other comprehensive income for the periods ended December 31, 2014, 2013 and 2012:
2014
 

 
Details about Accumulated Other
Comprehensive Income Components
Amount Reclassified from
Accumulated Other
Comprehensive Income

 Affected Line Item in the Consolidated
Statements of Income
Unrealized gains and losses on available-for-sale securities:
 

 
Net realized gain on investment
$
518,279


 
Other-than-temporary impairments
(14,542
)

 
Total
$
503,737


Net realized gain on investment
Tax
(168,366
)

Provision for Income Taxes
Net of Tax
$
335,371


 
Amortization related to postretirement benefit plans:
 


 
Prior year service cost
$
(2,217
)

 
Unrecognized gain (loss)
—


 
Total
$
(2,217
)

(a)
Tax
752


Provision for Income Taxes
Net of Tax
$
(1,465
)

 
Reclassifications for the period
$
333,906


 
2013
 
 
 
Details about Accumulated Other
Comprehensive Income Components
Amount Reclassified from
Accumulated Other
Comprehensive Income
 
 Affected Line Item in the Consolidated
Statements of Income
Unrealized gains and losses on available-for-sale securities:
 
 
 
Net realized gain on investment
$
229,869

 
 
Other-than-temporary impairments
(34,070
)
 
 
Total
$
195,799

 
Net realized gain on investment
Tax
(65,488
)
 
Provision for Income Taxes
Net of Tax
$
130,311

 
 
Accretion (amortization) related to postretirement benefit plans:
 

 
 
Prior year service cost
$
1,518

 
 
Unrecognized loss
(6,293
)
 
 
Total
$
(4,775
)
 
(a)
Tax
1,635

 
Provision for Income Taxes
Net of Tax
$
(3,140
)
 
 
Reclassifications for the period
$
127,171

 
 
2012
 
 
 
Details about Accumulated Other
Comprehensive Income Components
Amount Reclassified from
Accumulated Other
Comprehensive Income
 
 Affected Line Item in the Consolidated
Statements of Income
Unrealized gains and losses on available-for-sale securities:
 
 
 
Net realized gain on investment
$
1,166,179

 
 
Other-than-temporary impairments
(99,940
)
 
 
Total
$
1,066,239

 
Net realized gain on investment
Tax
(391,448
)
 
Provision for Income Taxes
Net of Tax
$
674,791

 
 
Amortization related to postretirement benefit plans:
 

 
 
Prior year service cost
$
(9,396
)
 
 
Unrecognized loss
(680
)
 
 
Total
$
(10,076
)
 
(a)
Tax
3,428

 
Provision for Income Taxes
Net of Tax
$
(6,648
)
 
 
Reclassifications for the period
$
668,143

 
 

(a)
These accumulated other comprehensive income components are not reclassified to net income in their entirety in the same reporting period. The amounts are presented within salaries, employee benefits and payroll taxes on the Consolidated Statements of Income as amortized. Amortization related to postretirement benefit plans is included in the computation of net periodic pension costs, as discussed in Note 10.