XML 54 R36.htm IDEA: XBRL DOCUMENT
v3.21.2

Benefit Plans (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2021
Retirement Benefits [Abstract] |
Company's pension and postretirement benefit plans |
Components of net cost (benefit) for pension and other postretirement plans |  |  |  |
|  | Three months ended September 30, |  | Nine months ended September 30,
($ in millions) |  | 2021 |  | 2020 |  | 2021 |  | 2020
Pension benefits |  |  |  |  |  |  |  |
Service cost |  | $ | 27 |  |  | $ | 25 |  |  | $ | 78 |  |  | $ | 78 |
Interest cost |  | 47 |  |  | 49 |  |  | 145 |  |  | 161 |
Expected return on plan assets |  | (112) |  |  | (104) |  |  | (338) |  |  | (303) |
Amortization of prior service credit |  | (13) |  |  | (14) |  |  | (38) |  |  | (42) |
Curtailment loss |  | — |  |  | 10 |  |  | — |  |  | 10 |
Costs and expenses |  | (51) |  |  | (34) |  |  | (153) |  |  | (96) |
Remeasurement of projected benefit obligation |  | (25) |  |  | 130 |  |  | (292) |  |  | 686 |
Remeasurement of plan assets |  | 68 |  |  | (202) |  |  | (99) |  |  | (391) |
Remeasurement (gains) losses |  | 43 |  |  | (72) |  |  | (391) |  |  | 295 |
Pension net (benefit) cost |  | $ | (8) |  |  | $ | (106) |  |  | $ | (544) |  |  | $ | 199 |
Postretirement benefits |  |  |  |  |  |  |  |
Service cost |  | $ | — |  |  | $ | 1 |  |  | $ | 1 |  |  | $ | 4 |
Interest cost |  | 2 |  |  | 2 |  |  | 6 |  |  | 8 |
Amortization of prior service credit |  | (5) |  |  | (1) |  |  | (18) |  |  | (3) |
Curtailment gain |  | — |  |  | (8) |  |  | — |  |  | (8) |
Costs and expenses |  | (3) |  |  | (6) |  |  | (11) |  |  | 1 |
Remeasurement of projected benefit obligation |  | (3) |  |  | 1 |  |  | (13) |  |  | 25 |
Remeasurement of plan assets |  | — |  |  | — |  |  | — |  |  | — |
Remeasurement (gains) losses |  | (3) |  |  | 1 |  |  | (13) |  |  | 25 |
Postretirement net (benefit) cost |  | $ | (6) |  |  | $ | (5) |  |  | $ | (24) |  |  | $ | 26 |
Pension and postretirement benefits |  |  |  |  |  |  |  |
Costs and expenses |  | $ | (54) |  |  | $ | (40) |  |  | $ | (164) |  |  | $ | (95) |
Remeasurement (gains) losses |  | 40 |  |  | (71) |  |  | (404) |  |  | 320 |
Total net (benefit) cost |  | $ | (14) |  |  | $ | (111) |  |  | $ | (568) |  |  | $ | 225 |
Differences between expected and actual returns on plan assets and changes in assumptions affect the Company’s pension and other postretirement obligations, plan assets and expenses. Pension and other postretirement service cost, interest cost, expected return on plan assets, amortization of prior service credit and curtailment gains and losses are reported in property and casualty insurance claims and claims expense, operating costs and expenses, net investment income and (if applicable) restructuring and related charges on the Condensed Consolidated Statement of Operations.
Pension and postretirement benefits remeasurement gains and losses |  |  |  |
|  | Three months ended September 30, |  | Nine months ended September 30,
($ in millions) |  | 2021 |  | 2020 |  | 2021 |  | 2020
Remeasurement of projected benefit obligation (gains) losses: |  |  |  |  |  |  |  |
Discount rate |  | $ | (32) |  |  | $ | 57 |  |  | $ | (271) |  |  | $ | 454 |
Other assumptions |  | 4 |  |  | 74 |  |  | (34) |  |  | 257 |
Remeasurement of plan assets (gains) losses |  | 68 |  |  | (202) |  |  | (99) |  |  | (391) |
Remeasurement (gains) losses |  | $ | 40 |  |  | $ | (71) |  |  | $ | (404) |  |  | $ | 320 |

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2439-114920 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2410-114920 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details
Name: | us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration