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Earnings Per Share and Common Stock - Share Repurchases (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Number of shares	1,097,686	1,229,313	1,006,102	1,061,323	734,737	2,243,259	3,333,101	4,039,319
Average price per share (in usd per share)	$ 182.20	$ 142.36	$ 124.24	$ 94.22	$ 81.66	$ 66.87	$ 150.01	$ 76.75
Total	$ 200	$ 175	$ 125	$ 100	$ 60	$ 150	$ 500	$ 310

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Stock Repurchased And Retired During Period, Net Of Excise Tax, Value

+ References

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- Definition

Number of shares that have been repurchased and retired during the period.

+ References

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 210
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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-Topic 210
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-Name Accounting Standards Codification
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-Paragraph 1
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
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-Name Accounting Standards Codification
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-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1

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Total cost of shares repurchased divided by the total number of shares repurchased.

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-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
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