Revenue - Revenue Disaggregated by Major Product (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]
Total revenue	$ 2,699	$ 1,883	$ 8,216	$ 5,129
Revenue from product sales
Disaggregation of Revenue [Line Items]
Revenue from product sales	2,687	1,876	8,186	5,084
Gasoline
Disaggregation of Revenue [Line Items]
Revenue from product sales	1,207	962	3,732	2,619
Distillates
Disaggregation of Revenue [Line Items]
Revenue from product sales	1,252	723	3,589	1,996
Ammonia
Disaggregation of Revenue [Line Items]
Revenue from product sales	22	27	125	68
UAN
Disaggregation of Revenue [Line Items]
Revenue from product sales	119	99	438	224
Other urea products
Disaggregation of Revenue [Line Items]
Revenue from product sales	6	8	26	20
Freight revenue
Disaggregation of Revenue [Line Items]
Revenue from product sales	11	14	40	40
Other
Disaggregation of Revenue [Line Items]
Revenue from product sales	70	43	236	117
Crude oil sales
Disaggregation of Revenue [Line Items]
Revenue from product sales	12	6	29	43
Other revenue
Disaggregation of Revenue [Line Items]
Other revenue	0	1	1	2
Operating Segments \| Petroleum Segment
Disaggregation of Revenue [Line Items]
Total revenue	2,474	1,742	7,497	4,793
Operating Segments \| Petroleum Segment \| Revenue from product sales
Disaggregation of Revenue [Line Items]
Revenue from product sales	2,462	1,735	7,467	4,748
Operating Segments \| Petroleum Segment \| Gasoline
Disaggregation of Revenue [Line Items]
Revenue from product sales	1,207	962	3,732	2,619
Operating Segments \| Petroleum Segment \| Distillates
Disaggregation of Revenue [Line Items]
Revenue from product sales	1,202	723	3,513	1,996
Operating Segments \| Petroleum Segment \| Ammonia
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Operating Segments \| Petroleum Segment \| UAN
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Operating Segments \| Petroleum Segment \| Other urea products
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Operating Segments \| Petroleum Segment \| Freight revenue
Disaggregation of Revenue [Line Items]
Revenue from product sales	4	5	13	16
Operating Segments \| Petroleum Segment \| Other
Disaggregation of Revenue [Line Items]
Revenue from product sales	49	45	209	117
Operating Segments \| Petroleum Segment \| Crude oil sales
Disaggregation of Revenue [Line Items]
Revenue from product sales	12	6	29	43
Operating Segments \| Petroleum Segment \| Other revenue
Disaggregation of Revenue [Line Items]
Other revenue	0	1	1	2
Operating Segments \| Nitrogen Fertilizer Segment
Disaggregation of Revenue [Line Items]
Total revenue	156	145	623	344
Operating Segments \| Nitrogen Fertilizer Segment \| Revenue from product sales
Disaggregation of Revenue [Line Items]
Revenue from product sales	156	145	623	344
Operating Segments \| Nitrogen Fertilizer Segment \| Gasoline
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Operating Segments \| Nitrogen Fertilizer Segment \| Distillates
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Operating Segments \| Nitrogen Fertilizer Segment \| Ammonia
Disaggregation of Revenue [Line Items]
Revenue from product sales	22	27	125	68
Operating Segments \| Nitrogen Fertilizer Segment \| UAN
Disaggregation of Revenue [Line Items]
Revenue from product sales	119	99	438	224
Operating Segments \| Nitrogen Fertilizer Segment \| Other urea products
Disaggregation of Revenue [Line Items]
Revenue from product sales	6	8	26	20
Operating Segments \| Nitrogen Fertilizer Segment \| Freight revenue
Disaggregation of Revenue [Line Items]
Revenue from product sales	7	9	27	24
Operating Segments \| Nitrogen Fertilizer Segment \| Other
Disaggregation of Revenue [Line Items]
Revenue from product sales	2	2	7	8
Operating Segments \| Nitrogen Fertilizer Segment \| Crude oil sales
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Operating Segments \| Nitrogen Fertilizer Segment \| Other revenue
Disaggregation of Revenue [Line Items]
Other revenue	0	0	0	0
Other / Elimination
Disaggregation of Revenue [Line Items]
Total revenue	69	(4)	96	(8)
Other / Elimination \| Revenue from product sales
Disaggregation of Revenue [Line Items]
Revenue from product sales	69	(4)	96	(8)
Other / Elimination \| Gasoline
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Other / Elimination \| Distillates
Disaggregation of Revenue [Line Items]
Revenue from product sales	50	0	76	0
Other / Elimination \| Ammonia
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Other / Elimination \| UAN
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Other / Elimination \| Other urea products
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Other / Elimination \| Freight revenue
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Other / Elimination \| Other
Disaggregation of Revenue [Line Items]
Revenue from product sales	19	(4)	20	(8)
Other / Elimination \| Crude oil sales
Disaggregation of Revenue [Line Items]
Revenue from product sales	0	0	0	0
Other / Elimination \| Other revenue
Disaggregation of Revenue [Line Items]
Other revenue	$ 0	$ 0	$ 0	$ 0