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Business Combinations - Summary of Fair Value Consideration (Details) - USD ($) $ in Millions		12 Months Ended
	Jan. 01, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Business Combination, Separately Recognized Transactions [Line Items]
Cash		$ 344	$ 3	$ 134
Bright Health Medicare
Business Combination, Separately Recognized Transactions [Line Items]
Cash	$ 341
Contingent consideration	86
Fair value of net assets acquired	$ 427

X

- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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