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Noncontrolling Interests (Details) - USD ($) $ 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
Noncontrolling Interests:
Net income attributable to noncontrolling interest	$ 179			$ 194			$ 565	$ 560
Number of units purchased (shares)	312,960			148,147			996,296	579,914
Purchase of noncontrolling interest	$ 121			$ 44			$ 373	$ 185
Purchase of noncontrolling interest, net of tax	(113)	$ (216)	$ (19)	(42)	$ (46)	$ (86)
Change in noncontrolling interest ownership, net of tax	$ (1)	(4)	(5)	$ 3	2	(3)
A/N
Noncontrolling Interests:
Ownership percentage held by noncontrolling interest (percentage)	10.00%			10.00%			10.00%	10.00%
Common Noncontrolling Interest
Noncontrolling Interests:
Net income attributable to noncontrolling interest	$ 179			$ 193			$ 564	$ 558
Noncontrolling Interests
Noncontrolling Interests:
Purchase of noncontrolling interest, net of tax	(88)	(171)	(14)	(36)	(42)	(58)	(273)	(136)
Change in noncontrolling interest ownership, net of tax	(2)	(18)	(20)	6	14	(13)	(40)	7
Additional Paid-in Capital
Noncontrolling Interests:
Purchase of noncontrolling interest, net of tax	(25)	(45)	(5)	(6)	(4)	(28)	(75)	(38)
Change in noncontrolling interest ownership, net of tax	$ 1	$ 14	$ 15	$ (3)	$ (12)	$ 10	$ 30	$ (5)
Maximum | Charter
Noncontrolling Interests:
Minority Interest Ownership Percentage Threshold	100.00%						100.00%

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Gross purchase price related to the decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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