Common Stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended			6 Months Ended
	Jul. 31, 2023	Mar. 31, 2023	Jan. 31, 2023	Jun. 30, 2023	Jun. 30, 2022
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased (in shares)					7.0
Purchase of treasury shares				$ 600	$ 1,100
Stock-based compensation, shares issued during period (in shares)				2.8	2.7
Dividend per share (in dollars per share)		$ 0.59	$ 0.59
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Dividend per share (in dollars per share)	$ 0.71
Common Stock
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased (in shares)				3.5
Stock repurchase program, remaining authorized repurchase amount				$ 3,700