Supplemental Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accrued Liabilities
Deferred turnaround costs	$ 261	$ 102
Accrued and other liabilities	1,196	821
Accrued rebates	213	128
Due to Related Parties, Current	49	61
Non-Cash Investing Activity [Abstract]
Capital Expenditures Incurred but Not yet Paid	156	86	$ 85
Restructuring and Related Activities [Abstract]
Restructuring, transaction and integration-related costs	21	36	37
Restructuring Charges		34	26
Other Income and Expenses [Abstract]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	23	14
Income (Loss) from Subsidiaries, Net of Tax	13	16	17
Interest Income, Other	7	14	20
Supplemental Cash Flow Information [Abstract]
Operating Lease, Payments	114	114	112
Right-of-use assets obtained in exchange for operating lease obligations	215	112	119
Interest paid, net of interest capitalized	130	140	116
Income taxes paid (refunded)	466	(135)	$ 77
Other assets, net	$ 417	$ 223