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REINSURANCE (Tables)
 6 Months Ended
Jun. 30, 2018
Reinsurance Disclosures [Abstract]  
Effects of Reinsurance
The following table reconciles direct premium income and direct benefits and claims to net amounts after the effect of reinsurance.
 
Three Months Ended
June 30,
 
Six Months Ended
June 30,
(In millions)
2018
 
2017
 
2018
 
2017
Direct premium income
 
$
4,793

 
 
 
$
4,752

 
 
 
$
9,626

 
 
 
$
9,476

 
Ceded to other companies:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    Ceded Aflac Japan closed blocks
 
(126
)
 
 
 
(130
)
 
 
 
(256
)
 
 
 
(260
)
 
    Other
 
(16
)
 
 
 
(13
)
 
 
 
(30
)
 
 
 
(25
)
 
Assumed from other companies:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    Retrocession activities
 
53

 
 
 
55

 
 
 
107

 
 
 
109

 
    Other
 
2

 
 
 
1

 
 
 
3

 
 
 
3

 
Net premium income
 
$
4,706

 
 
 
$
4,665

 
 
 
$
9,450

 
 
 
$
9,303

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Direct benefits and claims
 
$
3,106

 
 
 
$
3,117

 
 
 
$
6,225

 
 
 
$
6,246

 
Ceded benefits and change in reserves for future benefits:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    Ceded Aflac Japan closed blocks
 
(114
)
 
 
 
(119
)
 
 
 
(231
)
 
 
 
(241
)
 
    Eliminations
 
11

 
 
 
13

 
 
 
23

 
 
 
26

 
    Other
 
(12
)
 
 
 
(11
)
 
 
 
(23
)
 
 
 
(22
)
 
Assumed from other companies:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
    Retrocession activities
 
49

 
 
 
52

 
 
 
101

 
 
 
106

 
    Eliminations
 
(11
)
 
 
 
(13
)
 
 
 
(23
)
 
 
 
(26
)
 
    Other
 
2

 
 
 
0

 
 
 
1

 
 
 
2

 
Benefits and claims, net
 
$
3,031

 
 
 
$
3,039

 
 
 
$
6,073

 
 
 
$
6,091