Deferred Charges and Other Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred Charges and Other Assets
Deferred turnaround and catalyst costs, net	$ 1,778	$ 1,749
Operating lease ROU assets, net (see Note 5)	1,329
Investments in unconsolidated joint ventures	942	542
Income taxes receivable	525	343
Intangible assets, net	283	307
Goodwill	260	260
Other	514	431
Deferred charges and other assets, net	5,631	3,632
Deferred Charges and Other Assets (Textual)
Amortization expense, deferred turnaround and catalyst costs and intangible assets	$ 759	$ 668	$ 650