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AOCI
 6 Months Ended
Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
AOCI
AOCI

Activity in AOCI is summarized below:
Three Months Ended June 30, 2018 and 2017



(Dollars in millions)
Unrecognized Net Pension and Postretirement Costs
 
Unrealized Net Gains (Losses) on Cash Flow Hedges
 
Unrealized Net Gains (Losses) on AFS Securities
 
Other, net
 
Total
AOCI balance, April 1, 2017
$
(755
)
 
$
(94
)
 
$
(261
)
 
$
(15
)
 
$
(1,125
)
OCI before reclassifications, net of tax
1

 
(30
)
 
81

 
1

 
53

Amounts reclassified from AOCI:
 
 
 
 
 
 
 
 
 
Before tax
18

 
(6
)
 
(12
)
 
(1
)
 
(1
)
Tax effect
7

 
(2
)
 
(5
)
 
—

 
—

Amounts reclassified, net of tax
11

 
(4
)
 
(7
)
 
(1
)
 
(1
)
Total OCI, net of tax
12

 
(34
)
 
74

 
—

 
52

AOCI balance, June 30, 2017
$
(743
)
 
$
(128
)
 
$
(187
)
 
$
(15
)
 
$
(1,073
)
 
 
 
 
 
 
 
 
 
 
AOCI balance, April 1, 2018
$
(990
)
 
$
(14
)
 
$
(624
)
 
$
(17
)
 
$
(1,645
)
OCI before reclassifications, net of tax
—


23


(100
)
 
(2
)
 
(79
)
Amounts reclassified from AOCI:
 
 
 
 
 
 
 
 
 
Before tax
18

 
3

 
1

 
1

 
23

Tax effect
5

 
—

 
—

 
—

 
5

Amounts reclassified, net of tax
13

 
3

 
1

 
1

 
18

Total OCI, net of tax
13

 
26

 
(99
)
 
(1
)
 
(61
)
AOCI balance, June 30, 2018
$
(977
)
 
$
12

 
$
(723
)
 
$
(18
)
 
$
(1,706
)
Six Months Ended June 30, 2018 and 2017



(Dollars in millions)
Unrecognized Net Pension and Postretirement Costs
 
Unrealized Net Gains (Losses) on Cash Flow Hedges
 
Unrealized Net Gains (Losses) on AFS Securities
 
Other, net
 
Total
AOCI balance, January 1, 2017
$
(764
)
 
$
(92
)
 
$
(259
)
 
$
(17
)
 
$
(1,132
)
OCI before reclassifications, net of tax
(1
)
 
(27
)
 
80

 
2

 
54

Amounts reclassified from AOCI:
 
 
 
 
 
 
 
 
 
Before tax
35

 
(14
)
 
(13
)
 
—

 
8

Tax effect
13

 
(5
)
 
(5
)
 
—

 
3

Amounts reclassified, net of tax
22

 
(9
)
 
(8
)
 
—

 
5

Total OCI, net of tax
21

 
(36
)
 
72

 
2

 
59

AOCI balance, June 30, 2017
$
(743
)
 
$
(128
)
 
$
(187
)
 
$
(15
)
 
$
(1,073
)
 
 
 
 
 
 
 
 
 
 
AOCI balance, January 1, 2018
$
(1,004
)
 
$
(92
)
 
$
(356
)
 
$
(15
)
 
$
(1,467
)
OCI before reclassifications, net of tax
—

 
93

 
(382
)
 
(4
)
 
(293
)
Amounts reclassified from AOCI:
 
 
 
 
 
 
 
 
 
Before tax
36

 
14

 
20

 
1

 
71

Tax effect
9

 
3

 
5

 
—

 
17

Amounts reclassified, net of tax
27

 
11

 
15

 
1

 
54

Total OCI, net of tax
27

 
104

 
(367
)
 
(3
)
 
(239
)
AOCI balance, June 30, 2018
$
(977
)
 
$
12

 
$
(723
)
 
$
(18
)
 
$
(1,706
)
Primary income statement location of amounts reclassified from AOCI
Other expense
 
Interest expense
 
Interest income
 
Interest income