Common Stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended				9 Months Ended
	Sep. 30, 2023	Jul. 31, 2023	Mar. 31, 2023	Jan. 31, 2023	Sep. 30, 2023	Sep. 30, 2022
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased (in shares)						10.1
Purchase of treasury shares					$ 900	$ 1,600
Stock-based compensation, shares issued during period (in shares)					3.3	3.1
Dividend per share (in dollars per share)	$ 0.71	$ 0.71	$ 0.59	$ 0.59
Common Stock
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased (in shares)					5.1
Stock repurchase program, remaining authorized repurchase amount	$ 3,400				$ 3,400