Revenue Recognition - Other Revenue (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Operating revenue	$ 13,975	$ 9,154	$ 37,147	$ 20,429
Other
Disaggregation of Revenue [Line Items]
Operating revenue	2,271	1,701	7,017	4,423
Refinery
Disaggregation of Revenue [Line Items]
Operating revenue	1,134	872	3,835	2,189
Loyalty program
Disaggregation of Revenue [Line Items]
Operating revenue	655	453	1,877	1,260
Ancillary businesses
Disaggregation of Revenue [Line Items]
Operating revenue	249	215	665	586
Miscellaneous
Disaggregation of Revenue [Line Items]
Operating revenue	$ 233	$ 161	$ 640	$ 388

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details