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Other Comprehensive Income (Tables)
 6 Months Ended
Jun. 30, 2017
Cumulative Other Comprehensive Income Balances [Abstract]  
Summary of Other Comprehensive Income
Table 17.1 provides the components of other comprehensive income (OCI), reclassifications to net income by income statement line item, and the related tax effects.
Table 17.1: Summary of Other Comprehensive Income
 
Quarter ended June 30,
 
 
Six months ended June 30,
 
 
2017
 
 
2016
 
 
2017
 
 
2016
 
(in millions)
Before
tax

 
Tax
effect

 
Net of
tax

 
Before
tax

 
Tax
effect

 
Net of
tax

 
Before
tax

 
Tax
effect

 
Net of
tax

 
Before
tax

 
Tax
effect

 
Net of
tax

Investment securities:
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
  
Net unrealized gains arising during the period
$
1,565

 
(589
)
 
976

 
1,571

 
(596
)
 
975

 
1,934

 
(722
)
 
1,212

 
2,366

 
(906
)
 
1,460

Reclassification of net (gains) losses to net income:
 
 
 
 
 
 
 
 
 
 


 
  
 
  
 
 
 
 
 
 
 
 
Interest income on investment securities (1)
45

 
(17
)
 
28

 
3

 
(1
)
 
2

 
52

 
(20
)
 
32

 
3

 
(1
)
 
2

Net gains on debt securities
(120
)
 
44

 
(76
)
 
(447
)
 
168

 
(279
)
 
(156
)
 
57

 
(99
)
 
(691
)
 
259

 
(432
)
Net gains from equity investments
(101
)
 
35

 
(66
)
 
(60
)
 
23

 
(37
)
 
(217
)
 
79

 
(138
)
 
(119
)
 
45

 
(74
)
Other noninterest income
(1
)
 
—

 
(1
)
 
—

 
—

 
—

 
(1
)
 
—

 
(1
)
 
(1
)
 
—

 
(1
)
Subtotal reclassifications to net income
(177
)

62


(115
)
 
(504
)
 
190

 
(314
)
 
(322
)
 
116

 
(206
)
 
(808
)
 
303

 
(505
)
Net change
1,388


(527
)

861

 
1,067

 
(406
)
 
661

 
1,612

 
(606
)
 
1,006

 
1,558

 
(603
)
 
955

Derivatives and hedging activities:
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
  
Net unrealized gains arising during the period
376

 
(142
)
 
234

 
1,057

 
(399
)
 
658

 
243

 
(92
)
 
151

 
3,056

 
(1,152
)
 
1,904

Reclassification of net (gains) losses to net income:
 
 
 
 
 
 
 
 
 
 


 
  
 
  
 
 
 
 
 
 
 
 
Interest income on loans
(156
)
 
59

 
(97
)
 
(268
)
 
101

 
(167
)
 
(361
)
 
136

 
(225
)
 
(528
)
 
199

 
(329
)
Interest expense on long-term debt
3

 
(1
)
 
2

 
3

 
(1
)
 
2

 
6

 
(2
)
 
4

 
7

 
(3
)
 
4

Subtotal reclassifications to net income
(153
)

58


(95
)

(265
)

100


(165
)

(355
)

134


(221
)

(521
)

196


(325
)
Net change
223


(84
)

139

 
792

 
(299
)
 
493

 
(112
)

42


(70
)
 
2,535


(956
)

1,579

Defined benefit plans adjustments:
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
  
Net actuarial and prior service losses arising during the period
—

 
—

 
—

 
(19
)
 
7

 
(12
)
 
(7
)
 
3

 
(4
)
 
(27
)
 
10

 
(17
)
Reclassification of amounts to net periodic benefit costs (2):
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Amortization of net actuarial loss
39

 
(16
)
 
23

 
35

 
(14
)
 
21

 
77

 
(30
)
 
47

 
70

 
(27
)
 
43

Settlements and other
2

 
1

 
3

 
4

 
(1
)
 
3

 
2

 
1

 
3

 
6

 
(2
)
 
4

Subtotal reclassifications to net periodic benefit costs
41


(15
)

26

 
39

 
(15
)
 
24

 
79

 
(29
)
 
50

 
76

 
(29
)
 
47

Net change
41


(15
)

26

 
20

 
(8
)
 
12

 
72

 
(26
)
 
46

 
49

 
(19
)
 
30

Foreign currency translation adjustments:
 
 
 
 
 
 
 
 
 
 
 
 
  
 
  
 
  
 
  
 
  
 
  
Net unrealized gains (losses) arising during the period
31

 
2

 
33

 
(6
)
 
(1
)
 
(7
)
 
47

 
3

 
50

 
37

 
7

 
44

Net change
31


2


33

 
(6
)
 
(1
)
 
(7
)
 
47

 
3

 
50

 
37

 
7

 
44

Other comprehensive income
$
1,683


(624
)

1,059

 
1,873


(714
)

1,159

 
1,619

 
(587
)
 
1,032

 
4,179

 
(1,571
)
 
2,608

Less: Other comprehensive income (loss) from noncontrolling interests, net of tax
 
 
 
 
(9
)
 
 
 
 
 
(15
)
 
  
 
  
 
5

 
 
 
 
 
(43
)
Wells Fargo other comprehensive income, net of tax
 
 
 
 
$
1,068

 
 
 
 
 
1,174

 
  
 
  
 
1,027

 
 
 
 
 
2,651

(1)
Represents net unrealized gains and losses amortized over the remaining lives of securities that were transferred from the available-for-sale portfolio to the held-to-maturity portfolio.
(2)
These items are included in the computation of net periodic benefit cost, which is recorded in employee benefits expense (see Note 15 (Employee Benefits) for additional details).
Cumulative OCI Balances
Table 17.2: Cumulative OCI Balances
(in millions)
Investment
securities

 
Derivatives
and
hedging
activities

 
Defined
benefit
plans
adjustments

 
Foreign
currency
translation
adjustments

 
Cumulative
other
compre-
hensive
income

Quarter ended June 30, 2017
 
 
 
 
 
 
 
 
 
Balance, beginning of period
$
(967
)
 
(120
)
 
(1,923
)
 
(168
)
 
(3,178
)
Net unrealized gains arising during the period
976

 
234

 
—

 
33

 
1,243

Amounts reclassified from accumulated other comprehensive income
(115
)
 
(95
)
 
26

 
—

 
(184
)
Net change
861

 
139

 
26

 
33

 
1,059

Less: Other comprehensive income (loss) from noncontrolling interests
(10
)
 
—

 
—

 
1

 
(9
)
Balance, end of period
$
(96
)
 
19

 
(1,897
)
 
(136
)
 
(2,110
)
Quarter ended June 30, 2016
 
 
 
 
 
 
 
 
 
Balance, beginning of period
$
2,137

 
1,706

 
(1,933
)
 
(136
)
 
1,774

Net unrealized gains (losses) arising during the period
975

 
658

 
(12
)
 
(7
)
 
1,614

Amounts reclassified from accumulated other comprehensive income
(314
)
 
(165
)
 
24

 
—

 
(455
)
Net change
661

 
493

 
12

 
(7
)
 
1,159

Less: Other comprehensive loss from noncontrolling interests
(14
)
 
—

 
—

 
(1
)
 
(15
)
Balance, end of period
$
2,812

 
2,199

 
(1,921
)
 
(142
)
 
2,948

Six months ended June 30, 2017
  

 
  

 
  

 
  

 
  

Balance, beginning of period
$
(1,099
)
 
89

 
(1,943
)
 
(184
)
 
(3,137
)
Net unrealized gains (losses) arising during the period
1,212

 
151

 
(4
)
 
50

 
1,409

Amounts reclassified from accumulated other comprehensive income
(206
)
 
(221
)
 
50

 
—

 
(377
)
Net change
1,006

 
(70
)
 
46

 
50

 
1,032

Less: Other comprehensive income from noncontrolling interests
3

 
—

 
—

 
2

 
5

Balance, end of period
$
(96
)
 
19

 
(1,897
)
 
(136
)
 
(2,110
)
Six months ended June 30, 2016
  

 
  

 
  

 
  

 
  

Balance, beginning of period
$
1,813

 
620

 
(1,951
)
 
(185
)
 
297

Net unrealized gains (losses) arising during the period
1,460

 
1,904

 
(17
)
 
44

 
3,391

Amounts reclassified from accumulated other comprehensive income
(505
)
 
(325
)
 
47

 
—

 
(783
)
Net change
955

 
1,579

 
30

 
44

 
2,608

Less: Other comprehensive income (loss) from noncontrolling interests
(44
)
 
—

 
—

 
1

 
(43
)
Balance, end of period
$
2,812

 
2,199

 
(1,921
)
 
(142
)
 
2,948