Noncontrolling Interests (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Noncontrolling Interests:
Net income attributable to noncontrolling interest	$ 770	$ 704	$ 794
Distributions to noncontrolling interest	157	158	111
Purchase of noncontrolling interest, net of tax	(176)	(380)	(1,381)
Change in noncontrolling interest ownership, net of tax	3	(26)	(162)
Noncontrolling Interests
Noncontrolling Interests:
Distributions to noncontrolling interest	157	158	111
Purchase of noncontrolling interest, net of tax	(138)	(240)	(700)
Change in noncontrolling interest ownership, net of tax	13	(104)	(659)
Additional Paid-in Capital
Noncontrolling Interests:
Purchase of noncontrolling interest, net of tax	(38)	(140)	(681)
Change in noncontrolling interest ownership, net of tax	(10)	78	497
Common Noncontrolling Interest
Noncontrolling Interests:
Net income attributable to noncontrolling interest	767	702	792
Distributions to noncontrolling interest	$ 155	$ 156	$ 110
Number of units purchased	589,319	1,079,322	3,171,681
Amount of units purchased	$ 189	$ 427	$ 1,602
Common Noncontrolling Interest \| A/N
Noncontrolling Interests:
Shares held by noncontrolling shareholders (shares)	16,500,000
Ownership percentage held by noncontrolling interest (percentage)	10.00%	11.00%	11.00%
Common Noncontrolling Interest \| Noncontrolling Interests
Noncontrolling Interests:
Purchase of noncontrolling interest, net of tax	$ (138)	$ (240)	$ (700)
Change in noncontrolling interest ownership, net of tax	13	(104)	(659)
Common Noncontrolling Interest \| Additional Paid-in Capital
Noncontrolling Interests:
Decrease in additional paid-in-capital, net of tax	(38)	(140)	(681)
Change in noncontrolling interest ownership, net of tax	$ (10)	$ 78	$ 497
Maximum \| Charter
Noncontrolling Interests:
Noncontrolling interest ownership threshold (percentage)	100.00%

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