Supplemental Financial Information - Supplemental Disclosure of Cash-flow Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Supplemental disclosure of cash flow information
Cash paid for the amount used to measure the operating lease liabilities	$ 274	$ 211
Operating lease assets obtained in exchange for lease obligations	663	166
Net increase to operating lease right-of-use assets resulting from remeasurements of lease obligations	43	65
Non-cash investing and financing activities
Increase in property and equipment-related accounts payable	$ 47	$ 5