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Debt - Credit Facilities, Borrowings and Repayments and Letters of Credit (Details) - USD ($) $ in Millions			1 Months Ended	9 Months Ended
	Oct. 16, 2023	Jan. 31, 2023	Aug. 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Debt
Repayments of senior notes				$ 400	$ 750
Outstanding letters of credit				147		$ 102
2.85% senior notes due January 2023 | Senior Notes
Debt
Debt instrument, interest rate (as a percent)		2.85%
Repayments of senior notes		$ 400
3.85% senior notes due October 2023 | Senior Notes | Subsequent Event
Debt
Debt instrument, interest rate (as a percent)	3.85%
Repayments of senior notes	$ 700
Senior Secured Hedged Inventory Facility
Debt
Debt maturity, length of extension			1 year
Senior Unsecured Revolving Credit Facility
Debt
Debt maturity, length of extension			1 year
Line of credit facility, current borrowing capacity			$ 1,350
Senior Unsecured Revolving Credit Facility, Maturiting in August 2027
Debt
Line of credit facility, current borrowing capacity			$ 64
Credit Facilities and Commercial Paper Program
Debt
Total borrowings				4,900	19,300
Total repayments				$ 4,900	$ 19,300

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