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Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Noncontrolling Interests:
Net income attributable to noncontrolling interest	$ 192		$ 190		$ 366	$ 352
Purchase of noncontrolling interest (shares)	169,428		157,075		431,767	481,175
Purchase price of noncontrolling interest	$ 46		$ 54		$ 141	$ 176
Purchase of noncontrolling interest, net of tax	(46)	$ (86)	(50)	$ (108)
Change in noncontrolling interest ownership, net of tax	$ 2	(3)	$ 1	(9)
A/N
Noncontrolling Interests:
Ownership percentage held by noncontrolling interest (percentage)	11.00%		11.00%		11.00%	11.00%
Common Noncontrolling Interest
Noncontrolling Interests:
Net income attributable to noncontrolling interest	$ 192		$ 189		$ 365	$ 351
Noncontrolling Interests
Noncontrolling Interests:
Purchase of noncontrolling interest, net of tax	(42)	(58)	(34)	(68)	(100)	(102)
Change in noncontrolling interest ownership, net of tax	14	(13)	7	(37)	1	(30)
Additional Paid-in Capital
Noncontrolling Interests:
Purchase of noncontrolling interest, net of tax	(4)	(28)	(16)	(40)
Impact of noncontrolling interest purchased	(4)		(16)		(32)	(56)
Change in noncontrolling interest ownership, net of tax	$ (12)	$ 10	$ (6)	$ 28	$ (2)	$ 22
Maximum | Charter
Noncontrolling Interests:
Minority Interest Ownership Percentage Threshold	100.00%				100.00%

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