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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2023
Equity [Abstract] |
Share Repurchase Programs | The following share repurchase programs have been authorized by the Board:
In billions Authorization Date | Authorized |  | Remaining as of December 31, 2023
November 17, 2022 (“2022 Repurchase Program”) | $ | 10.0 |  |  | $ | 10.0 |
December 9, 2021 (“2021 Repurchase Program”) | 10.0 |  |  | 4.5 |
Schedule of Regulatory Requirements | The combined statutory net income for the years ended and estimated combined statutory and capital surplus at December 31, 2023, 2022 and 2021 for the Company’s insurance and HMO subsidiaries were as follows:
In millions | 2023 |  | 2022 |  | 2021
Statutory net income | $ | 2,757 |  |  | $ | 2,851 |  |  | $ | 3,302 |
Estimated statutory capital and surplus | 16,961 |  |  | 15,503 |  |  | 14,879 |
Statutory Accounting Practices Disclosure | At December 31, 2023, these amounts were as follows:
In millions |
Estimated minimum statutory surplus required by regulators | $ | 9,011 |
Investments on deposit with regulatory bodies | 684 |
Estimated maximum dividend distributions permitted in 2024 without prior regulatory approval | 3,098 |

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- Definition Tabular disclosure of treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481520/505-30-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481520/505-30-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481520/505-30-50-4 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481549/505-30-45-1 + Details
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- Definition Tabular disclosure of how the entity's reporting under GAAP as of the balance sheet date differs from the results based on prescribed and permitted accounting practices of the state or country of domicile in which a relevant statutory filing is made, or differences in results based on the National Association of Insurance Commissioners (NAIC) prescribed practices, or a combination thereof. Describes the accounting practices used and the related monetary effect on statutory surplus, net income, and risk-based capital. If an insurance enterprise's risk-based capital would have triggered a regulatory event had it not used a permitted practice, that fact is disclosed in the financial statements. Permitted statutory accounting practices include practices not prescribed but allowed by the domiciliary state insurance department regulatory authority. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(23)(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479989/944-505-50-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479989/944-505-50-6 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 55 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479956/944-505-55-2 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 55 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479956/944-505-55-1 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479989/944-505-50-3 + Details
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