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Reinsurance
 9 Months Ended
Sep. 30, 2016
Reinsurance Disclosures [Abstract]  
Reinsurance
Reinsurance
The effects of reinsurance on premiums and contract charges are as follows:
($ in millions)
Three months ended September 30,
 
Nine months ended September 30,
 
2016
 
2015
 
2016
 
2015
Direct
$
178

 
$
180

 
$
532

 
$
546

Assumed
 
 
 
 
 
 
 
Affiliate
34

 
33

 
103

 
98

Non-affiliate
200

 
208

 
605

 
627

Ceded
 
 
 
 
 
 
 
Affiliate
(14
)
 
(13
)
 
(40
)
 
(27
)
Non-affiliate
(74
)
 
(78
)
 
(218
)
 
(239
)
Premiums and contract charges, net of reinsurance
$
324

 
$
330

 
$
982

 
$
1,005






The effects of reinsurance on contract benefits are as follows:
($ in millions)
Three months ended September 30,
 
Nine months ended September 30,
 
2016
 
2015
 
2016
 
2015
Direct
$
243

 
$
228

 
$
756

 
$
749

Assumed
 
 
 
 
 
 
 
Affiliate
24

 
20

 
65

 
59

Non-affiliate
130

 
141

 
408

 
411

Ceded
 
 
 
 
 
 
 
Affiliate
(8
)
 
(12
)
 
(26
)
 
(23
)
Non-affiliate
(22
)
 
(24
)
 
(157
)
 
(139
)
Contract benefits, net of reinsurance
$
367

 
$
353

 
$
1,046

 
$
1,057


The effects of reinsurance on interest credited to contractholder funds are as follows:
($ in millions)
Three months ended September 30,
 
Nine months ended September 30,
 
2016
 
2015
 
2016
 
2015
Direct
$
147

 
$
170

 
$
462

 
$
486

Assumed
 
 
 
 
 
 
 
Affiliate
3

 
2

 
7

 
7

Non-affiliate
33

 
20

 
85

 
81

Ceded
 
 
 
 
 
 
 
Affiliate
(6
)
 
(5
)
 
(16
)
 
(10
)
Non-affiliate
(7
)
 
(6
)
 
(18
)
 
(18
)
Interest credited to contractholder funds, net of reinsurance
$
170

 
$
181

 
$
520

 
$
546