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Reinsurance (Tables)
 3 Months Ended
Mar. 31, 2019
Reinsurance Disclosures [Abstract]  
Effects of reinsurance on premiums and contract charges The effects of reinsurance on premiums and contract charges are as follows:
($ in millions)
Three months ended March 31,
 
2019
 
2018
Direct
$
183

 
$
185

Assumed
 
 
 
Affiliate
58

 
60

Non-affiliate
177

 
189

Ceded
 
 
 
Affiliate
(12
)
 
(13
)
Non-affiliate
(59
)
 
(68
)
Premiums and contract charges, net of reinsurance
$
347

 
$
353
Effects of reinsurance on contract benefits The effects of reinsurance on contract benefits are as follows:
($ in millions)
Three months ended March 31,
 
2019
 
2018
Direct
$
250

 
$
257

Assumed
 
 
 
Affiliate
32

 
34

Non-affiliate
116

 
134

Ceded
 
 
 
Affiliate
(9
)
 
(12
)
Non-affiliate
(26
)
 
(43
)
Contract benefits, net of reinsurance
$
363

 
$
370
Effects of reinsurance on interest credited to contractholder funds The effects of reinsurance on interest credited to contractholder funds are as follows:
($ in millions)
Three months ended March 31,
 
2019
 
2018
Direct
$
113

 
$
130

Assumed
 
 
 
Affiliate
2

 
2

Non-affiliate
41

 
25

Ceded
 
 
 
Affiliate
(5
)
 
(5
)
Non-affiliate
(3
)
 
(4
)
Interest credited to contractholder funds, net of reinsurance
$
148

 
$
148