Shareholders' Equity - Narrative (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Class of Stock [Line Items]
Repurchase of common stock	$ 250	$ 610	$ 250	$ 1,116
Common Stock
Class of Stock [Line Items]
Repurchase of common stock	$ 26	$ 51	$ 26	$ 99
Repurchase of common stock (in shares)	5,108	10,284	5,108	19,788
Common Stock
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount	$ 4,200		$ 4,200
Common stock, remaining dollar amount authorized for repurchase	$ 2,300		$ 2,300
Repurchase of common stock (in shares)			5,100