Shareholders' Equity - Schedule of Stock Repurchases (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	120 Months Ended
Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022
Equity [Abstract]
Shares repurchased (in shares)	2.8	0.2	152.4
Average price per share (in dollars per share)	$ 294.47	$ 217.70
Repurchase costs recorded to retained earnings	$ 828	$ 50	$ 19,100

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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