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Earnings per Share
3 Months Ended
Mar. 31, 2022
Earnings Per Share [Abstract]  
Earnings per Share Earnings per Share
We compute earnings per share (EPS) of Class A and Class B common stock using the two-class method. As the liquidation and dividend rights for both Class A and Class B common stock are identical, the undistributed earnings are allocated on a proportionate basis to the weighted-average number of common shares outstanding for the period.

Basic EPS is computed by dividing net income by the weighted-average number of shares of our Class A and Class B common stock outstanding.

For the calculation of diluted EPS, net income for basic EPS is adjusted by the effect of dilutive securities, including awards under our equity compensation plans.

In addition, the computation of the diluted EPS of Class A common stock assumes the conversion of our Class B
common stock to Class A common stock, while the diluted EPS of Class B common stock does not assume the conversion of those shares to Class A common stock. Diluted EPS is computed by dividing the resulting net income by the weighted-average number of fully diluted common shares outstanding.

For the three months ended March 31, 2022, 48 million shares of Class A common stock equivalents of RSUs were excluded from the diluted EPS calculation as including them would have an anti-dilutive effect. RSUs with anti-dilutive effect were not material for the three months ended, March 31, 2021.

Basic and diluted EPS are the same for each class of common stock because they are entitled to the same liquidation and dividend rights.

The numerators and denominators of the basic and diluted EPS computations for our common stock are calculated as follows (in millions, except per share amounts): 
 Three Months Ended March 31,
 20222021
 Class AClass BClass AClass B
Basic EPS:
Numerator
Net income$6,334 $1,131 $8,025 $1,472 
Denominator
Shares used in computation of basic earnings per share2,312 413 2,406 441 
Basic EPS$2.74 $2.74 $3.34 $3.34 
Diluted EPS:
Numerator
Net income$6,334 $1,131 $8,025 $1,472 
Reallocation of net income as a result of conversion of Class B to Class A common stock1,131 — 1,472 — 
Reallocation of net income to Class B common stock— (7)— (18)
Net income for diluted EPS$7,465 $1,124 $9,497 $1,454 
Denominator
Shares used in computation of basic earnings per share2,312 413 2,406 441 
Conversion of Class B to Class A common stock413 — 441 — 
Weighted-average effect of dilutive RSUs17 — 35 — 
Shares used in computation of diluted earnings per share2,742 413 2,882 441 
Diluted EPS$2.72 $2.72 $3.30 $3.30