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v3.23.2

Goodwill and Value of business acquired (Roll-forward of Goodwill by Business Segment) (Details) $ in Millions | 6 Months Ended
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Jun. 30, 2023 USD ($)
Goodwill [Roll Forward] |
Balance at beginning of period | $ 16,228
Foreign exchange revaluation and other | 94
Balance at end of period | 16,322
North America Commercial P&C Insurance [Member] |
Goodwill [Roll Forward] |
Balance at beginning of period | 6,945
Foreign exchange revaluation and other | 10
Balance at end of period | 6,955
North America Personal P&C Insurance [Member] |
Goodwill [Roll Forward] |
Balance at beginning of period | 2,230
Foreign exchange revaluation and other | 4
Balance at end of period | 2,234
North America Agricultural Insurance [Member] |
Goodwill [Roll Forward] |
Balance at beginning of period | 134
Foreign exchange revaluation and other | 0
Balance at end of period | 134
Overseas General Insurance [Member] |
Goodwill [Roll Forward] |
Balance at beginning of period | 4,605
Foreign exchange revaluation and other | 139
Balance at end of period | 4,744
Global Reinsurance [Member] |
Goodwill [Roll Forward] |
Balance at beginning of period | 371
Foreign exchange revaluation and other | 0
Balance at end of period | 371
Segment Life [Member] |
Goodwill [Roll Forward] |
Balance at beginning of period | 1,943
Foreign exchange revaluation and other | (59)
Balance at end of period | $ 1,884

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 852 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481372/852-10-55-10 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482548/350-20-55-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482598/350-20-45-1 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482573/350-20-50-1 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482573/350-20-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482573/350-20-50-1 + Details
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