Preferred Stock and Common Stock, Common Stock Shares Outstanding (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Common Stock Shares Outstanding [Line Items]
Common stock, shares, outstanding, beginning balance	3,064.3	3,261.7	3,092.6	3,288.9
Common stock, shares, outstanding, ending balance	3,028.5	3,220.4	3,028.5	3,220.4
Common stock [Member]
Common Stock Shares Outstanding [Line Items]
Issued, shares	1.6	2.6	19.6	19.9
Treasury stock, common [Member]
Common Stock Shares Outstanding [Line Items]
Repurchased, shares	(37.4)	(43.9)	(83.7)	(88.4)

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.