Shareholders' Equity - Schedule of Stock Repurchases (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	6 Months Ended	120 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Mar. 31, 2022
Equity [Abstract]
Shares repurchased (in shares)	1.7	1.1	4.5	1.3	154.1
Average price per share (in dollars per share)	$ 292.06	$ 235.84	$ 293.56	$ 232.53
Repurchase costs recorded to retained earnings	$ 500	$ 242	$ 1,328	$ 292	$ 19,600

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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