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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Numerator for earnings per share calculation: |  |  |
Income from continuing operations | $ 4,165 | $ 7,898 | $ 7,201
Net (income) loss attributable to noncontrolling interests | (16) | 12 | (13)
Income from continuing operations attributable to CVS Health | $ 4,149 | $ 7,910 | $ 7,188
Denominator for earnings per share calculation: |  |  |
Weighted average shares, basic (in shares) | 1,312 | 1,319 | 1,309
Weighted average shares, diluted (in shares) | 1,323 | 1,329 | 1,314
Earnings per share from continuing operations: |  |  |
Earnings per share from continuing operations, basic (USD per share) | $ 3.16 | $ 6.00 | $ 5.49
Earnings per share from continuing operations, diluted (USD per share) | $ 3.14 | $ 5.95 | $ 5.47
Stock Options and Stock Appreciation Rights |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of EPS (in shares) | 4 | 7 | 15
Denominator for earnings per share calculation: |  |  |
Effect of dilutive securities (in shares) | 5 | 4 | 1
Restricted Stock Units (RSUs) and Performance Stock Units (PSUs) |  |  |
Denominator for earnings per share calculation: |  |  |
Effect of dilutive securities (in shares) | 6 | 6 | 4

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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