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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 326	$ 245	$ 928	$ 875
Other comprehensive gain (loss):
Unrealized investment gain (loss)	100	(24)	96	(7)
Less: effect of income taxes	24	(5)	23	(2)
Other comprehensive gain (loss), net of tax	76	(19)	73	(5)
Comprehensive income	$ 402	$ 226	$ 1,001	$ 870

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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