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Earnings Per Common Share (EPS)
 9 Months Ended
Sep. 30, 2022
Earnings Per Share [Abstract]  
Earnings Per Common Share (EPS) Earnings Per Common Share (EPS)
The computations of basic and diluted EPS for the three and nine months ended September 30 were as follows:
Three Months Ended
September 30,		Nine Months Ended
September 30,
(Millions, except per share amounts)2022202120222021
Numerator:
Basic and diluted:
Net income$1,879 $1,826 $5,942 $6,341 
Preferred dividends (14)(20)(43)(49)
Equity-related adjustment (a)
— (9)— (9)
Net income available to common shareholders$1,865 $1,797 $5,899 $6,283 
Earnings allocated to participating share awards (b)
(14)(14)(45)(45)
Net income attributable to common shareholders$1,851 $1,783 $5,854 $6,238 
Denominator:(a)
Basic: Weighted-average common stock748 786 752 796 
Add: Weighted-average stock options (c)
1 1 1 1 
Diluted749 787 753 797 
Basic EPS$2.47 $2.27 $7.78 $7.84 
Diluted EPS$2.47 $2.27 $7.77 $7.82 
(a)Represents the difference between the redemption value and carrying value of the Series C preferred shares, which were redeemed on September 15, 2021. The carrying value represents the original issuance proceeds, net of underwriting fees and offering costs for the Series C preferred shares.
(b)Our unvested restricted stock awards, which include the right to receive non-forfeitable dividends or dividend equivalents, are considered participating securities. Calculations of EPS under the two-class method exclude from the numerator any dividends paid or owed on participating securities and any undistributed earnings considered to be attributable to participating securities. The related participating securities are similarly excluded from the denominator.
(c)The dilutive effect of unexercised stock options excludes from the computation of EPS 0.26 million and 0.01 million of options for the three months ended September 30, 2022 and 2021, respectively, and 0.23 million and 0.01 million of options for the nine months ended September 30, 2022 and 2021, respectively, because inclusion of the options would have been anti-dilutive.