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EARNINGS PER SHARE | 3 Months Ended
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Mar. 31, 2022
Earnings Per Share [Abstract] |
EARNINGS PER SHARE | EARNINGS PER SHARE The earnings per share amounts are the same for class A and class B common shares as the holders of each class are legally entitled to equal per share distributions whether through dividends or in liquidation. The following table sets forth the computation of basic and diluted earnings per share for the three months ended March 31, 2022 and 2021 (in millions, except per share amounts):
|  |  | Three Months Ended March 31,
|  |  |  | 2022 |  | 2021
Numerator: |  |  |  |  |  |  |
Net income attributable to common shareowners |  |  |  |  | $ | 2,662 |  | $ | 4,792
Denominator: |  |  |  |  |  |  |
Weighted average shares |  |  |  |  | 871 |  | 867
Vested portion of restricted units |  |  |  |  | 3 |  | 5
Denominator for basic earnings per share |  |  |  |  | 874 |  | 872
Effect of dilutive securities: |  |  |  |  |  |  |
Restricted units |  |  |  |  | 4 |  | 3
Stock options |  |  |  |  | 1 |  | 1
Denominator for diluted earnings per share |  |  |  |  | 879 |  | 876
Basic earnings per share |  |  |  |  | $ | 3.05 |  | $ | 5.50
Diluted earnings per share |  |  |  |  | $ | 3.03 |  | $ | 5.47
Diluted earnings per share for the three months ended March 31, 2022 and 2021 excluded the effect of 0.1 and 0.2 million shares of common stock, respectively, that may be issued upon the exercise of employee stock options because such effect would have been antidilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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