Summary of Significant Accounting Policies - Comprehensive Earnings (Loss) - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
COMPREHENSIVE EARNINGS (LOSS)
Tax rate used (as a percent)	21.00%	21.00%	21.00%
Other comprehensive earnings (loss), tax (benefit)	$ 17	$ (74)	$ (16)

Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details