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Condensed Consolidated Statements of Changes in Equity - USD ($) shares in Millions, $ in Millions | Total | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Net Unrealized Gains (losses) on Investments [Member] | Foreign Currency Translation [Member] | Nonredeemable Noncontrolling Interests [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2020 | $ 68,328 | $ 10 | $ 0 | $ 69,295 | $ 1,336 | $ (5,150) | $ 2,837
Balance (in shares) at Dec. 31, 2020 |  | 946 |  |  |  |  |
Net earnings attributable to UnitedHealth Group common shareholders | 4,862 |  |  | 4,862 |  |  |
Net earnings attributable to nonredeemable noncontrolling interest |  |  |  |  |  |  | 80
Net Earnings, Including Portion Attributable to Nonredeemable Noncontrolling Interest | 4,942 |  |  |  |  |  |
Other comprehensive loss | (1,012) |  |  |  | (595) | (417) |
Issuances of common stock, and related tax effects (in shares) |  | 3 |  |  |  |  |
Issuances of common stock, and related tax effects | 256 | $ 0 | 256 |  |  |  |
Share-based compensation | 242 |  | 242 |  |  |  |
Common share repurchases (in shares) |  | (5) |  |  |  |  |
Common share repurchases | (1,650) | $ 0 | 0 | (1,650) |  |  |
Cash dividends paid on common shares ($1.45 per share and $1.25 per share for the three months ended March 31, 2022, and 2021, respectively) | (1,181) |  |  | (1,181) |  |  |
Redeemable noncontrolling interests fair value and other adjustments | (604) |  | (498) | (106) |  |  |
Acquisition and other adjustments of nonredeemable noncontrolling interests | 66 |  |  |  |  |  | 66
Distribution to nonredeemable noncontrolling interests | (74) |  |  |  |  |  | (74)
Balance at Mar. 31, 2021 | 69,313 | $ 10 | 0 | 71,220 | 741 | (5,567) | 2,909
Balance (in shares) at Mar. 31, 2021 |  | 944 |  |  |  |  |
Balance at Dec. 31, 2021 | $ 75,045 | $ 10 | 0 | 77,134 | 423 | (5,807) | 3,285
Balance (in shares) at Dec. 31, 2021 | 941 | 941 |  |  |  |  |
Net earnings attributable to UnitedHealth Group common shareholders | $ 5,027 |  |  | 5,027 |  |  |
Net earnings attributable to nonredeemable noncontrolling interest |  |  |  |  |  |  | 88
Net Earnings, Including Portion Attributable to Nonredeemable Noncontrolling Interest | 5,115 |  |  |  |  |  |
Other comprehensive loss | (642) |  |  |  | (1,560) | 918 |
Issuances of common stock, and related tax effects (in shares) |  | 3 |  |  |  |  |
Issuances of common stock, and related tax effects | 333 | $ 0 | 333 |  |  |  |
Share-based compensation | 282 |  | 282 |  |  |  |
Common share repurchases (in shares) |  | (5) |  |  |  |  |
Common share repurchases | (2,500) | $ 0 | (484) | (2,016) |  |  |
Cash dividends paid on common shares ($1.45 per share and $1.25 per share for the three months ended March 31, 2022, and 2021, respectively) | (1,363) |  |  | (1,363) |  |  |
Redeemable noncontrolling interests fair value and other adjustments | (131) |  | (131) |  |  |  |
Acquisition and other adjustments of nonredeemable noncontrolling interests | 91 |  |  |  |  |  | 91
Distribution to nonredeemable noncontrolling interests | (102) |  |  |  |  |  | (102)
Balance at Mar. 31, 2022 | $ 76,128 | $ 10 | $ 0 | $ 78,782 | $ (1,137) | $ (4,889) | $ 3,362
Balance (in shares) at Mar. 31, 2022 | 939 | 939 |  |  |  |  |

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