Schedule I - Summary of Investments Other than Investments in Related Parties

12 Months Ended

Dec. 31, 2017

Summary of Investments, Other than Investments in Related Parties [Abstract]

Schedule I — Summary of Investments Other than Investments in Related Parties

Schedule I — Summary of Investments Other than Investments in Related Parties

	As of December 31, 2017
($ in millions)	Cost/amortized cost		Fair value		Amount at which shown in the Balance Sheet
Type of investment
Fixed maturities:
Bonds:
United States government, government agencies and authorities	$	3,580	$	3,616	$	3,616
States, municipalities and political subdivisions	8,053		8,328		8,328
Foreign governments	1,005		1,021		1,021
Public utilities	5,655		5,988		5,988
All other corporate bonds	37,341		38,038		38,038
Asset-backed securities	1,266		1,272		1,272
Residential mortgage-backed securities	480		578		578
Commercial mortgage-backed securities	124		128		128
Redeemable preferred stocks	21		23		23
Total fixed maturities	57,525		$	58,992	58,992
Equity securities:
Common stocks:
Public utilities	84		$	99	99
Banks, trusts and insurance companies	565		725		725
Industrial, miscellaneous and all other	4,591		5,506		5,506
Nonredeemable preferred stocks	221		291		291
Total equity securities	5,461		$	6,621	6,621
Mortgage loans on real estate	4,534		$	4,732	4,534
Real estate (none acquired in satisfaction of debt)	468				468
Policy loans	905				905
Derivative instruments	127		$	127	127
Limited partnership interests	6,740				6,740
Other long-term investments	2,472				2,472
Short-term investments	1,944		$	1,944	1,944
Total investments	$	80,176			$	82,803