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Investments (Tables)

6 Months Ended

Jun. 30, 2020

Amortized cost and fair value of investments in fixed maturities [Table Text Block]

The amortized cost and fair value of investments in fixed maturities classified as available for sale were as follows:


	Amortized Cost		Allowance for Expected Credit Losses		Gross Unrealized						Fair Value
(at June 30, 2020, in millions)							Gains		Losses
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities	$	2,046	$	—	$	49	$	—	$	2,095
Obligations of states, municipalities and political subdivisions:
Local general obligation	16,040		—		1,225		1		17,264
Revenue	10,298		—		818		—		11,116
State general obligation	1,144		—		83		—		1,227
Pre-refunded	2,328		—		133		—		2,461
Total obligations of states, municipalities and political subdivisions	29,810		—		2,259		1		32,068
Debt securities issued by foreign governments	1,023		—		28		—		1,051
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities	2,910		—		174		—		3,084
All other corporate bonds	29,619		8		2,184		62		31,733
Redeemable preferred stock	22		—		1		—		23
Total	$	65,430	$	8	$	4,695	$	63	$	70,054


	Amortized		Gross Unrealized						Fair
(at December 31, 2019, in millions)	Cost		Gains		Losses		Value
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities	$	2,076	$	19	$	—	$	2,095
Obligations of states, municipalities and political subdivisions:
Local general obligation	15,490		829		4		16,315
Revenue	9,731		586		2		10,315
State general obligation	1,167		64		—		1,231
Pre-refunded	1,968		88		—		2,056
Total obligations of states, municipalities and political subdivisions	28,356		1,567		6		29,917
Debt securities issued by foreign governments	1,167		8		2		1,173
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities	3,192		91		3		3,280
All other corporate bonds	30,442		1,195		18		31,619
Redeemable preferred stock	48		2		—		50
Total	$	65,281	$	2,882	$	29	$	68,134

Cost and fair value of investments in equity securities [Table Text Block]

The cost and fair value of investments in equity securities were as follows:


									Fair
(at June 30, 2020, in millions)	Cost		Gross Gains		Gross Losses		Value
Public common stock	$	344	$	30	$	23	$	351
Non-redeemable preferred stock	34		6		1		39
Total	$	378	$	36	$	24	$	390


									Fair
(at December 31, 2019, in millions)	Cost		Gross Gains		Gross Losses		Value
Public common stock	$	341	$	45	$	3	$	383
Non-redeemable preferred stock	35		7		—		42
Total	$	376	$	52	$	3	$	425

Unrealized investment losses [Table Text Block]

The following tables summarize, for all investments in an unrealized loss position at June 30, 2020 and December 31, 2019, the aggregate fair value and gross unrealized loss by length of time those securities have been continuously in an unrealized loss position. The fair value amounts reported in the tables are estimates that are prepared using the process described in note 4 herein and in note 4 of notes to the consolidated financial statements in the Company’s 2019 Annual Report. The Company also relies upon estimates of several credit and non-credit factors in its review and evaluation of individual investments, using the process described in note 1 of notes to the consolidated financial statements to determine whether credit impairment exists.


	Less than 12 months						12 months or longer						Total
(at June 30, 2020, in millions)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities	$	46	$	—	$	—	$	—	$	46	$	—
Obligations of states, municipalities and political subdivisions	334		1		—		—		334		1
Debt securities issued by foreign governments	12		—		—		—		12		—
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities	25		—		2		—		27		—
All other corporate bonds	1,079		51		141		11		1,220		62

Total	$	1,496	$	52	$	143	$	11	$	1,639	$	63


	Less than 12 months						12 months or longer						Total
(at December 31, 2019, in millions)	Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses
Fixed maturities
U.S. Treasury securities and obligations of U.S. government and government agencies and authorities	$	5	$	—	$	193	$	—	$	198	$	—
Obligations of states, municipalities and political subdivisions	668		6		12		—		680		6
Debt securities issued by foreign governments	257		1		147		1		404		2
Mortgage-backed securities, collateralized mortgage obligations and pass-through securities	399		2		131		1		530		3
All other corporate bonds	1,571		10		662		8		2,233		18
Total	$	2,900	$	19	$	1,145	$	10	$	4,045	$	29

Reconciliation of of the beginning and ending balances of the allowance for expected credit losses on fixed maturities classified as available-for-sale [Table Text Block]

The following tables present changes in the allowance for expected credit losses on fixed maturities classified as available for sale:


	Fixed Maturities
(for the three months ended June 30, 2020 in millions)	Mortgage-Backed Securities, Collateralized Mortgage Obligations and Pass-Through Securities		All Other Corporate Bonds		Total

Balance, April 1, 2020	$	—	$	4	$	4
Additions for expected credit losses on securities where no credit losses were previously recognized	—		4		4
Additions (reductions) for expected credit losses on securities where credit losses were previously recognized	—		—		—
Reductions due to sales/defaults of credit-impaired securities	—		—		—
Reductions for impairments of securities which the Company intends to sell or more likely than not will be required to sell ⁽¹⁾	—		—		—
Balance, June 30, 2020	$	—	$	8	$	8

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(1) Credit impairment charges recognized in net realized investment gains (losses) for the three months ended June 30, 2020 included $2 million of credit losses on fixed maturity securities which the Company intends to sell. An allowance for expected credit losses was not previously recorded for these securities.


	Fixed Maturities
(for the six months ended June 30, 2020 in millions)	Mortgage-Backed Securities, Collateralized Mortgage Obligations and Pass-Through Securities		All Other Corporate Bonds		Total

Balance, January 1, 2020	$	—	$	—	$	—
Additions for expected credit losses on securities where no credit losses were previously recognized	—		8		8
Additions (reductions) for expected credit losses on securities where credit losses were previously recognized	—		—		—
Reductions due to sales/defaults of credit-impaired securities	—		—		—
Reductions for impairments of securities which the Company intends to sell or more likely than not will be required to sell ⁽¹⁾	—		—		—
Balance, June 30, 2020	$	—	$	8	$	8

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(1)Credit impairment charges recognized in net realized investment gains (losses) for the six months ended June 30, 2020 included $14 million credit losses on fixed maturity securities which the Company intends to sell. An allowance for expected credit losses was not previously recorded for these securities.