Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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+ Details

Basis of Presentation (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to allowance for credit losses	$ (20,053)	$ (19,726)	$ (17,192)	$ (16,386)
Increase to retained earnings	303,082	292,332	285,899
Retained earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to retained earnings	$ 306,208	296,456	$ 277,177	$ 272,268
Cumulative effect of change in accounting principles
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to allowance for credit losses		587
Cumulative effect of change in accounting principles \| Accounting Standards Update 2022-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to allowance for credit losses		587
Cumulative effect of change in accounting principles \| Retained earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to retained earnings		449
Cumulative effect of change in accounting principles \| Retained earnings \| Accounting Standards Update 2022-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Increase to retained earnings		$ 446