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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2022
Earnings Per Share [Abstract]  
Shares Used in the Earnings Per Share Calculations The number of shares used in the earnings per share calculations are reconciled as follows:
For the three months ended June 30For the six months ended June 30
(in millions)2022202120222021
Weighted-average basic shares outstanding929.9 666.7 929.8 666.6 
Dilutive effect of stock options2.7 3.2 2.9 3.2 
Weighted-average diluted shares outstanding932.6 669.9 932.7 669.8