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Stockholders' Equity (Summary Of Dividends Paid On Common Stock) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Stockholders Equity [Line Items]
Dividends amount	$ 1,007	$ 830	$ 667	$ 329	$ 229	$ 203	$ 2,504	$ 761
Dividends rate per share	$ 1.55	$ 1.27	$ 1.00	$ 0.49	$ 0.34	$ 0.30
Fixed Dividend [Member]
Stockholders Equity [Line Items]
Dividends amount	$ 117	$ 105	$ 109	$ 74	$ 75	$ 76	331	225
Dividends rate per share	$ 0.18		$ 0.16
Variable Dividend [Member]
Stockholders Equity [Line Items]
Dividends amount	$ 890	$ 725	$ 558	$ 255	$ 154	$ 127	$ 2,173	$ 536

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Stockholders equity.

+ References

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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- Definition

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3291-108585

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