Equity - Stock Repurchase Program (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Equity, Class of Treasury Stock
Payment for shares repurchased	$ 4	$ 6	$ 1,483	$ 803
Remaining share repurchase authorization amount	$ 1,400		$ 1,400
December 2018 Stock Repurchase Authorization
Equity, Class of Treasury Stock
Shares repurchased (in shares)			8	5
Payment for shares repurchased			$ 1,100	$ 550

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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