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Defined contribution plan
12 Months Ended
Dec. 31, 2023
Retirement Benefits [Abstract]  
Defined contribution plan Defined contribution plan
The Company has defined contribution plans to which certain employees of the Company and participating subsidiaries may defer compensation for income tax purposes. Participants are eligible to receive matching contributions based on their contributions, in addition to other Company contributions. Defined contribution plan expenses were $311 million, $243 million and $279 million for the years ended December 31, 2023, 2022 and 2021, respectively.