Fair Value (Details 4) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair value by pricing source
Available-for-sale securities	$ 10,917us-gaap_AvailableForSaleSecurities	$ 10,446us-gaap_AvailableForSaleSecurities
Indemnity
Fair value by pricing source
Available-for-sale securities	581	589
Exchange
Fair value by pricing source
Available-for-sale securities	10,336	9,857
Fair value measurements on a recurring basis
Fair value by pricing source
Total	14,071	13,748
Fair value measurements on a recurring basis \| Indemnity
Fair value by pricing source
Available-for-sale securities	581	589
Total	588	597
Fair value measurements on a recurring basis \| Indemnity \| Fixed maturities
Fair value by pricing source
Available-for-sale securities	556	564
Fair value measurements on a recurring basis \| Indemnity \| Fixed maturities \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	555
Fair value measurements on a recurring basis \| Indemnity \| Fixed maturities \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	1
Fair value measurements on a recurring basis \| Indemnity \| Nonredeemable preferred stock
Fair value by pricing source
Available-for-sale securities	12	12
Fair value measurements on a recurring basis \| Indemnity \| Nonredeemable preferred stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	10
Fair value measurements on a recurring basis \| Indemnity \| Nonredeemable preferred stock \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	2
Fair value measurements on a recurring basis \| Indemnity \| Common stock
Fair value by pricing source
Available-for-sale securities	13	13
Fair value measurements on a recurring basis \| Indemnity \| Common stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	13
Fair value measurements on a recurring basis \| Indemnity \| Real estate
Fair value by pricing source
Other investments	7	8
Fair value measurements on a recurring basis \| Indemnity \| Real estate \| Priced via unobservable inputs
Fair value by pricing source
Other investments	7
Fair value measurements on a recurring basis \| Exchange
Fair value by pricing source
Available-for-sale securities	10,336	9,857
Total	13,483	13,151
Fair value measurements on a recurring basis \| Exchange \| Fixed maturities
Fair value by pricing source
Available-for-sale securities	9,499	9,007
Fair value measurements on a recurring basis \| Exchange \| Fixed maturities \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	9,330
Fair value measurements on a recurring basis \| Exchange \| Fixed maturities \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	162
Fair value measurements on a recurring basis \| Exchange \| Fixed maturities \| Priced via internal modeling
Fair value by pricing source
Available-for-sale securities	7
Fair value measurements on a recurring basis \| Exchange \| Nonredeemable preferred stock
Fair value by pricing source
Available-for-sale securities	738	710
Fair value measurements on a recurring basis \| Exchange \| Nonredeemable preferred stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	716
Fair value measurements on a recurring basis \| Exchange \| Nonredeemable preferred stock \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	21
Fair value measurements on a recurring basis \| Exchange \| Nonredeemable preferred stock \| Priced via internal modeling
Fair value by pricing source
Available-for-sale securities	1
Fair value measurements on a recurring basis \| Exchange \| Common stock
Fair value by pricing source
Available-for-sale securities	99	140
Trading and available-for-sale securities	3,195
Fair value measurements on a recurring basis \| Exchange \| Common stock \| Priced via pricing services
Fair value by pricing source
Trading and available-for-sale securities	3,180
Fair value measurements on a recurring basis \| Exchange \| Common stock \| Priced via internal modeling
Fair value by pricing source
Trading and available-for-sale securities	15
Fair value measurements on a recurring basis \| Exchange \| Real estate
Fair value by pricing source
Other investments	51	71
Fair value measurements on a recurring basis \| Exchange \| Real estate \| Priced via unobservable inputs
Fair value by pricing source
Other investments	51
Fair value measurements on a recurring basis \| Level 1
Fair value by pricing source
Total	3,570	3,691
Fair value measurements on a recurring basis \| Level 1 \| Indemnity
Fair value by pricing source
Available-for-sale securities	15	15
Total	15	15
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Fixed maturities
Fair value by pricing source
Available-for-sale securities	0	0
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Fixed maturities \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Fixed maturities \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Nonredeemable preferred stock
Fair value by pricing source
Available-for-sale securities	2	2
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Nonredeemable preferred stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	2
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Nonredeemable preferred stock \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Common stock
Fair value by pricing source
Available-for-sale securities	13	13
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Common stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	13
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Real estate
Fair value by pricing source
Other investments	0	0
Fair value measurements on a recurring basis \| Level 1 \| Indemnity \| Real estate \| Priced via unobservable inputs
Fair value by pricing source
Other investments	0
Fair value measurements on a recurring basis \| Level 1 \| Exchange
Fair value by pricing source
Available-for-sale securities	474	468
Total	3,555	3,676
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Fixed maturities
Fair value by pricing source
Available-for-sale securities	0	0
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Fixed maturities \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Fixed maturities \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Fixed maturities \| Priced via internal modeling
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Nonredeemable preferred stock
Fair value by pricing source
Available-for-sale securities	375	328
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Nonredeemable preferred stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	375
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Nonredeemable preferred stock \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Nonredeemable preferred stock \| Priced via internal modeling
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Common stock
Fair value by pricing source
Available-for-sale securities	99	140
Trading and available-for-sale securities	3,180
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Common stock \| Priced via pricing services
Fair value by pricing source
Trading and available-for-sale securities	3,180
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Common stock \| Priced via internal modeling
Fair value by pricing source
Trading and available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Real estate
Fair value by pricing source
Other investments	0	0
Fair value measurements on a recurring basis \| Level 1 \| Exchange \| Real estate \| Priced via unobservable inputs
Fair value by pricing source
Other investments	0
Fair value measurements on a recurring basis \| Level 2
Fair value by pricing source
Total	10,338	9,863
Fair value measurements on a recurring basis \| Level 2 \| Indemnity
Fair value by pricing source
Available-for-sale securities	566	574
Total	566	574
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Fixed maturities
Fair value by pricing source
Available-for-sale securities	556	564
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Fixed maturities \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	555
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Fixed maturities \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	1
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Nonredeemable preferred stock
Fair value by pricing source
Available-for-sale securities	10	10
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Nonredeemable preferred stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	8
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Nonredeemable preferred stock \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	2
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Common stock
Fair value by pricing source
Available-for-sale securities	0	0
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Common stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Real estate
Fair value by pricing source
Other investments	0	0
Fair value measurements on a recurring basis \| Level 2 \| Indemnity \| Real estate \| Priced via unobservable inputs
Fair value by pricing source
Other investments	0
Fair value measurements on a recurring basis \| Level 2 \| Exchange
Fair value by pricing source
Available-for-sale securities	9,772	9,289
Total	9,772	9,289
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Fixed maturities
Fair value by pricing source
Available-for-sale securities	9,410	8,908
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Fixed maturities \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	9,330
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Fixed maturities \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	80
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Fixed maturities \| Priced via internal modeling
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Nonredeemable preferred stock
Fair value by pricing source
Available-for-sale securities	362	381
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Nonredeemable preferred stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	341
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Nonredeemable preferred stock \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	21
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Nonredeemable preferred stock \| Priced via internal modeling
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Common stock
Fair value by pricing source
Available-for-sale securities	0	0
Trading and available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Common stock \| Priced via pricing services
Fair value by pricing source
Trading and available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Common stock \| Priced via internal modeling
Fair value by pricing source
Trading and available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Real estate
Fair value by pricing source
Other investments	0	0
Fair value measurements on a recurring basis \| Level 2 \| Exchange \| Real estate \| Priced via unobservable inputs
Fair value by pricing source
Other investments	0
Fair value measurements on a recurring basis \| Level 3
Fair value by pricing source
Total	163	194
Fair value measurements on a recurring basis \| Level 3 \| Indemnity
Fair value by pricing source
Available-for-sale securities	0	0
Total	7	8
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Fixed maturities
Fair value by pricing source
Available-for-sale securities	0	0
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Fixed maturities \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Fixed maturities \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Nonredeemable preferred stock
Fair value by pricing source
Available-for-sale securities	0	0
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Nonredeemable preferred stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Nonredeemable preferred stock \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Common stock
Fair value by pricing source
Available-for-sale securities	0	0
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Common stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Real estate
Fair value by pricing source
Other investments	7	8
Fair value measurements on a recurring basis \| Level 3 \| Indemnity \| Real estate \| Priced via unobservable inputs
Fair value by pricing source
Other investments	7
Fair value measurements on a recurring basis \| Level 3 \| Exchange
Fair value by pricing source
Available-for-sale securities	90	100
Total	156	186
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Fixed maturities
Fair value by pricing source
Available-for-sale securities	89	99
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Fixed maturities \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Fixed maturities \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	82
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Fixed maturities \| Priced via internal modeling
Fair value by pricing source
Available-for-sale securities	7
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Nonredeemable preferred stock
Fair value by pricing source
Available-for-sale securities	1	1
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Nonredeemable preferred stock \| Priced via pricing services
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Nonredeemable preferred stock \| Priced via market comparables/broker quotes
Fair value by pricing source
Available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Nonredeemable preferred stock \| Priced via internal modeling
Fair value by pricing source
Available-for-sale securities	1
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Common stock
Fair value by pricing source
Available-for-sale securities	0	0
Trading and available-for-sale securities	15
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Common stock \| Priced via pricing services
Fair value by pricing source
Trading and available-for-sale securities	0
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Common stock \| Priced via internal modeling
Fair value by pricing source
Trading and available-for-sale securities	15
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Real estate
Fair value by pricing source
Other investments	51	71
Fair value measurements on a recurring basis \| Level 3 \| Exchange \| Real estate \| Priced via unobservable inputs
Fair value by pricing source
Other investments	51
Fair value measurements on a nonrecurring basis
Fair value by pricing source
Total	$ 0

Fair Value (Details 4) (USD $)
In Millions, unless otherwise specified

Mar. 31, 2015

Dec. 31, 2014

Available-for-sale securities

$ 10,917

$ 10,446

Indemnity

Fair value by pricing source

Available-for-sale securities

581

589

Exchange

Fair value by pricing source

Available-for-sale securities

10,336

9,857

Fair value measurements on a recurring basis

Fair value by pricing source

Total

14,071

13,748

Fair value measurements on a recurring basis | Indemnity

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Indemnity | Fixed maturities

Fair value by pricing source

Available-for-sale securities

556

564

Fair value measurements on a recurring basis | Indemnity | Fixed maturities | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

555

Fair value measurements on a recurring basis | Indemnity | Fixed maturities | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Indemnity | Nonredeemable preferred stock

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Indemnity | Nonredeemable preferred stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Indemnity | Nonredeemable preferred stock | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Indemnity | Common stock

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Indemnity | Common stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Indemnity | Real estate

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Indemnity | Real estate | Priced via unobservable inputs

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Exchange

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Exchange | Fixed maturities

Fair value by pricing source

Available-for-sale securities

9,499

9,007

Fair value measurements on a recurring basis | Exchange | Fixed maturities | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

9,330

Fair value measurements on a recurring basis | Exchange | Fixed maturities | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

162

Fair value measurements on a recurring basis | Exchange | Fixed maturities | Priced via internal modeling

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Exchange | Nonredeemable preferred stock

Fair value by pricing source

Available-for-sale securities

738

710

Fair value measurements on a recurring basis | Exchange | Nonredeemable preferred stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

716

Fair value measurements on a recurring basis | Exchange | Nonredeemable preferred stock | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Exchange | Nonredeemable preferred stock | Priced via internal modeling

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Exchange | Common stock

Fair value by pricing source

Available-for-sale securities

140

Trading and available-for-sale securities

3,195

Fair value measurements on a recurring basis | Exchange | Common stock | Priced via pricing services

Fair value by pricing source

Trading and available-for-sale securities

3,180

Fair value measurements on a recurring basis | Exchange | Common stock | Priced via internal modeling

Fair value by pricing source

Trading and available-for-sale securities

Fair value measurements on a recurring basis | Exchange | Real estate

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Exchange | Real estate | Priced via unobservable inputs

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 1

Fair value by pricing source

Total

3,570

3,691

Fair value measurements on a recurring basis | Level 1 | Indemnity

Fair value by pricing source

Available-for-sale securities

Total

Fair value measurements on a recurring basis | Level 1 | Indemnity | Fixed maturities

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Indemnity | Fixed maturities | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Indemnity | Fixed maturities | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Indemnity | Nonredeemable preferred stock

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Indemnity | Nonredeemable preferred stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Indemnity | Nonredeemable preferred stock | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Indemnity | Common stock

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Indemnity | Common stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Indemnity | Real estate

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 1 | Indemnity | Real estate | Priced via unobservable inputs

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 1 | Exchange

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Exchange | Fixed maturities

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Exchange | Fixed maturities | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Exchange | Fixed maturities | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Exchange | Fixed maturities | Priced via internal modeling

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Exchange | Nonredeemable preferred stock

Fair value by pricing source

Available-for-sale securities

375

328

Fair value measurements on a recurring basis | Level 1 | Exchange | Nonredeemable preferred stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

375

Fair value measurements on a recurring basis | Level 1 | Exchange | Nonredeemable preferred stock | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Exchange | Nonredeemable preferred stock | Priced via internal modeling

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Exchange | Common stock

Fair value by pricing source

Available-for-sale securities

140

Trading and available-for-sale securities

3,180

Fair value measurements on a recurring basis | Level 1 | Exchange | Common stock | Priced via pricing services

Fair value by pricing source

Trading and available-for-sale securities

3,180

Fair value measurements on a recurring basis | Level 1 | Exchange | Common stock | Priced via internal modeling

Fair value by pricing source

Trading and available-for-sale securities

Fair value measurements on a recurring basis | Level 1 | Exchange | Real estate

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 1 | Exchange | Real estate | Priced via unobservable inputs

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 2

Fair value by pricing source

Total

10,338

9,863

Fair value measurements on a recurring basis | Level 2 | Indemnity

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Indemnity | Fixed maturities

Fair value by pricing source

Available-for-sale securities

556

564

Fair value measurements on a recurring basis | Level 2 | Indemnity | Fixed maturities | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

555

Fair value measurements on a recurring basis | Level 2 | Indemnity | Fixed maturities | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Indemnity | Nonredeemable preferred stock

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Indemnity | Nonredeemable preferred stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Indemnity | Nonredeemable preferred stock | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Indemnity | Common stock

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Indemnity | Common stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Indemnity | Real estate

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 2 | Indemnity | Real estate | Priced via unobservable inputs

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 2 | Exchange

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Exchange | Fixed maturities

Fair value by pricing source

Available-for-sale securities

9,410

8,908

Fair value measurements on a recurring basis | Level 2 | Exchange | Fixed maturities | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

9,330

Fair value measurements on a recurring basis | Level 2 | Exchange | Fixed maturities | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Exchange | Fixed maturities | Priced via internal modeling

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Exchange | Nonredeemable preferred stock

Fair value by pricing source

Available-for-sale securities

362

381

Fair value measurements on a recurring basis | Level 2 | Exchange | Nonredeemable preferred stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

341

Fair value measurements on a recurring basis | Level 2 | Exchange | Nonredeemable preferred stock | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Exchange | Nonredeemable preferred stock | Priced via internal modeling

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Exchange | Common stock

Fair value by pricing source

Available-for-sale securities

Trading and available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Exchange | Common stock | Priced via pricing services

Fair value by pricing source

Trading and available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Exchange | Common stock | Priced via internal modeling

Fair value by pricing source

Trading and available-for-sale securities

Fair value measurements on a recurring basis | Level 2 | Exchange | Real estate

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 2 | Exchange | Real estate | Priced via unobservable inputs

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 3

Fair value by pricing source

Total

163

194

Fair value measurements on a recurring basis | Level 3 | Indemnity

Fair value by pricing source

Available-for-sale securities

Total

Fair value measurements on a recurring basis | Level 3 | Indemnity | Fixed maturities

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Indemnity | Fixed maturities | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Indemnity | Fixed maturities | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Indemnity | Nonredeemable preferred stock

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Indemnity | Nonredeemable preferred stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Indemnity | Nonredeemable preferred stock | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Indemnity | Common stock

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Indemnity | Common stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Indemnity | Real estate

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 3 | Indemnity | Real estate | Priced via unobservable inputs

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 3 | Exchange

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Fixed maturities

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Fixed maturities | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Fixed maturities | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Fixed maturities | Priced via internal modeling

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Nonredeemable preferred stock

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Nonredeemable preferred stock | Priced via pricing services

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Nonredeemable preferred stock | Priced via market comparables/broker quotes

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Nonredeemable preferred stock | Priced via internal modeling

Fair value by pricing source

Available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Common stock

Fair value by pricing source

Available-for-sale securities

Trading and available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Common stock | Priced via pricing services

Fair value by pricing source

Trading and available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Common stock | Priced via internal modeling

Fair value by pricing source

Trading and available-for-sale securities

Fair value measurements on a recurring basis | Level 3 | Exchange | Real estate

Fair value by pricing source

Other investments

Fair value measurements on a recurring basis | Level 3 | Exchange | Real estate | Priced via unobservable inputs

Fair value by pricing source

Other investments

Fair value measurements on a nonrecurring basis

Fair value by pricing source

Total

$ 0

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale and Trading Securities which consist of all investments in certain debt and equity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale and Trading.

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