Equity - Stock Repurchase Program (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Feb. 16, 2023
Equity, Class of Treasury Stock
Payment for shares repurchased	$ 1,324	$ 1,955
Remaining share repurchase authorization amount	$ 3,900
December 2018 Stock Repurchase Authorization
Equity, Class of Treasury Stock
Increase to existing stock repurchase authorization			$ 5,000
Shares repurchased (in shares)	5	10
Payment for shares repurchased	$ 959	$ 1,600

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
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 10
-Topic 505
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-2

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481549/505-30-45-1

Name:	us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration