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Short-Term Borrowings and Long-Term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions		12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Oct. 31, 2022
Debt Instrument [Line Items]
Borrowing Limit	$ 1,859	$ 1,859
Total principal long-term debt	735	735	$ 670
Current portion of long-term debt	(203)	(203)	(129)
Less: unamortized discounts	(3)	(3)	(3)
Total long-term debt	529	529	538
Line of credit \| February 2024
Debt Instrument [Line Items]
Borrowing Limit	1,000	1,000
Total principal long-term debt	$ 0	$ 0	0
Line of credit \| February 2024 \| Federal funds rate or composite overnight bank borrowings rate
Debt Instrument [Line Items]
Variable interest rate (in percent)		0.50%
Line of credit \| February 2024 \| Adjusted One Month SOFR
Debt Instrument [Line Items]
Variable interest rate (in percent)		1.00%
Line of credit \| November 2024
Debt Instrument [Line Items]
Variable interest rate (in percent)	2.30%
Borrowing Limit	$ 124	$ 124
Total principal long-term debt	$ 0	$ 0	0
Assets pledged as collateral				$ 508
Line of credit \| August 2024
Debt Instrument [Line Items]
Interest rate (%)	3.16%	3.16%
Borrowing Limit	$ 155	$ 155
Total principal long-term debt	$ 155	$ 155	158
Line of credit \| April 2026
Debt Instrument [Line Items]
Interest rate (%)	6.76%	6.76%
Borrowing Limit	$ 178	$ 178
Total principal long-term debt	$ 178	$ 178	0
Line of credit \| March 2027
Debt Instrument [Line Items]
Interest rate (%)	4.26%	4.26%
Borrowing Limit	$ 310	$ 310
Total principal long-term debt	310	310	316
Line of credit \| August 2024 - November 2026
Debt Instrument [Line Items]
Borrowing Limit	92	92
Total principal long-term debt	$ 92	$ 92	$ 196
Line of credit \| August 2024 - November 2026 \| Minimum
Debt Instrument [Line Items]
Interest rate (%)	3.68%	3.68%
Line of credit \| August 2024 - November 2026 \| Maximum
Debt Instrument [Line Items]
Interest rate (%)	6.00%	6.00%
Line of credit \| October 2023 - March 2027
Debt Instrument [Line Items]
Assets pledged as collateral	$ 882	$ 882