Supplemental Cash and Cash Flow Statement Disclosures (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022
Cash, Cash Equivalents and Restricted Cash
Cash and cash equivalents	$ 1,346	$ 955	$ 1,346	$ 955	$ 695	$ 548
Current restricted cash (included in other current assets)	$ 2	$ 13	$ 2	$ 13	15	10
Location of current restricted cash	Other current assets	Other current assets	Other current assets	Other current assets
Cash, cash equivalents and restricted cash - beginning of period	$ 1,348	$ 968	$ 1,348	$ 968	710	558
Corporate interest income	$ 18	$ 7	44	11
Other Non-cash items
Noncash capital expenditures			$ 139	$ 204	$ 204	$ 392