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Postretirement Benefit Plans (Details Textual) shares in Thousands, £ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($) shares | Dec. 31, 2022 GBP (£) | Dec. 31, 2021 USD ($) shares | Dec. 31, 2020 USD ($)
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block |  |  |  |
Number of years eligible employees can receive transition credits | 5 years | 5 years |  |
Number of shares held by employees in Employee Stock Ownership Plan | shares | 245 |  | 256 |
Charge resulting from curtailment or settlement recorded | $ 137,000,000 |  | $ 0 | $ 0
Prior service credit | (3,000,000) |  | (3,000,000) |
Accumulated benefit obligation | 460,000,000 |  | 1,009,000,000 |
Estimated pension plan contributions during the next fiscal quarter | 5,000,000 |  |  |
Net gain (loss) | $ 101,000,000 |  | 51,000,000 | (78,000,000)
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets | 5.90% | 5.90% |  |
Fair value of plan assets | $ 246,000,000 |  | 679,000,000 |
U.K. pension settlement expense | (140,000,000) |  | 0 | 0
Pension |  |  |  |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block |  |  |  |
Prior service credit | 1,000,000 |  | 4,000,000 |
Employer Contribution to defined benefit Plan | 19,000,000 |  |  |
Fair value of plan assets | 246,000,000 |  | 679,000,000 |
Other Benefits |  |  |  |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block |  |  |  |
Prior service credit | (4,000,000) |  | (7,000,000) |
Net actuarial losses, before tax | (1,000,000) |  | (2,000,000) | (2,000,000)
Prior service credit, before tax | (2,000,000) |  | (2,000,000) | (3,000,000)
Employer Contribution to defined benefit Plan |  |  | 29,000,000 |
Net gain (loss) | 9,000,000 |  | 0 | (1,000,000)
Fair value of plan assets | $ 0 |  | 0 |
Minimum |  |  |  |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block |  |  |  |
Employer matching contribution | 3.00% | 3.00% |  |
Estimated pension plan contributions during next fiscal year | $ 18,000,000 |  |  |
Maximum |  |  |  |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block |  |  |  |
Employer matching contribution | 7.00% | 7.00% |  |
Estimated pension plan contributions during next fiscal year | $ 26,000,000 |  |  |
Cash and cash equivalents |  |  |  |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block |  |  |  |
Fair value of plan assets | 2,000,000 |  | 6,000,000 |
International defined benefit pension plans |  |  |  |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block |  |  |  |
Charge resulting from curtailment or settlement recorded | 137,000,000 |  | 0 | 0
Net actuarial losses, before tax | (10,000,000) |  | (17,000,000) | (14,000,000)
Employer Contribution to defined benefit Plan | 16,000,000 |  | 26,000,000 |
Net gain (loss) | $ 95,000,000 |  | $ 51,000,000 | $ (74,000,000)
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets | 2.79% | 2.79% | 2.60% | 2.82%
Discount rate | 4.13% |  | 1.55% | 1.06%
Fair value of plan assets | $ 166,000,000 |  | $ 571,000,000 | $ 578,000,000
Discount rate | 1.55% | 1.55% | 1.06% | 1.80%
UNITED KINGDOM |  |  |  |
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block |  |  |  |
U.K. pension settlement expense | $ 140,000,000 | £ 123 |  |

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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + 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 (j) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580 + Details
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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of 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 (k)(3) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2919-114920 + Details
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. + References Reference 1: 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 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 6 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 Reference 4: 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 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 6: 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 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -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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