v3.22.4

Employee Benefit Plans - Narrative (Details) | 12 Months Ended |
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Dec. 31, 2022 USD ($) plan | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Defined contribution plan, employer matching contribution per dollar | $ 1.00 |  |
Defined contribution plan, employer matching contribution | 5.00% |  |
Defined contribution plan, employers matching contribution for vesting plan | 4.00% |  |
Defined contribution plan, employers matching contribution for vesting, period | 3 years |  |
Defined contribution plans, cost | $ 212,000,000 | $ 194,000,000 |
Number of non-qualified defined contribution plans | plan | 2 |  |
Defined contribution plan, assets and liabilities | $ 256,000,000 | 322,000,000 |
Pension plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Pension assets or obligations, threshold, per plan | 20,000,000 |  |
Accumulated postretirement benefit obligation | 2,634,000,000 | 3,550,000,000 | $ 3,806,000,000
Fair values of the plan assets | 2,266,000,000 | 3,147,000,000 | $ 3,202,000,000
Employer contributions | 32,000,000 | 28,000,000 |
Defined Benefit Plan, Benefit Obligation, Payment for Settlement | $ 24,000,000 | 33,000,000 |
Pension plan | Defined Benefit Plan, Funded Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Number of retirement plans | plan | 7 |  |
Pension plan | Defined Benefit Plan, Underfunded Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Number of retirement plans | plan | 5 |  |
Pension plan | Minimum |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Estimated future employer contributions in next fiscal year | $ 15,000,000 |  |
Pension plan | Maximum |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Estimated future employer contributions in next fiscal year | 20,000,000 |  |
Pension plan | Fixed income and cash investment funds |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Fair values of the plan assets | 1,482,000,000 | 1,890,000,000 |
Pension plan | Fair value measured at Net Asset Value per share |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Fair values of the plan assets | $ 2,157,000,000 | $ 3,028,000,000 |
Pension plan | Fair value measured at Net Asset Value per share | Equity securities |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Percent of plan assets valued using NAV | 13.00% | 16.00% |
Pension plan | Fair value measured at Net Asset Value per share | Fixed income and cash investment funds |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Percent of plan assets valued using NAV | 69.00% | 62.00% |
Pension plan | Fair value measured at Net Asset Value per share | Alternative investments |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Percent of plan assets valued using NAV | 18.00% | 22.00% |
Pension plan | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Fair values of the plan assets | $ 109,000,000 | $ 119,000,000 |
Pension plan | Level 3 |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Fair values of the plan assets | $ 100,000,000 | 112,000,000 |
Pension plan | UNITED STATES |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Number of retirement plans | plan | 4 |  |
Defined Benefit Plan, Benefit Obligation, Payment for Settlement | $ 286,000,000 |  |
Pension plan | Foreign |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Number of retirement plans | plan | 8 |  |
Postretirement Health Care Benefits | UNITED STATES |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Accumulated postretirement benefit obligation | $ 37,000,000 | 50,000,000 |
Supplemental Pension Plan | UNITED STATES | Nonqualified Plan | BH SPP |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Trust assets | $ 34,000,000 | $ 45,000,000 |

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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of payment, which decreases benefit obligation of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Excludes decreases to benefit obligation for remeasurement due to settlement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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