Leases - Balance Sheet Classification of Lease Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Operating Leases
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets, Noncurrent	Other Assets, Noncurrent
Other assets	$ 526	$ 697
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other Accrued Liabilities, Current	Other Accrued Liabilities, Current
Accrued liabilities - Other	$ 192	$ 190
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Income Taxes And Other Liabilities, Noncurrent	Income Taxes And Other Liabilities, Noncurrent
Income taxes and other liabilities	$ 344	$ 517
Total lease liabilities	$ 536	$ 707
Finance Leases
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Machinery and equipment	Machinery and equipment
Finance lease, right of use asset	$ 108	$ 76
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Less current portion of long-term debt	Less current portion of long-term debt
Finance lease, current liability	$ 48	$ 13
Finance leases, noncurrent	$ 23	$ 24
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt (Note 7)	Long-term debt (Note 7)
Finance leases	$ 71	$ 37
Machinery and Equipment
Finance Leases
Finance lease, right of use asset	$ 108	12
Other assets
Finance Leases
Finance lease, right of use asset		$ 64
Minimum
Lessee, Lease, Description [Line Items]
Lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease term	72 years