Leases - Schedule of Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other property and equipment, net	Other property and equipment, net
Finance lease right-of-use asset	$ 500	$ 528
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Current	Other Liabilities, Current	Other Liabilities, Current
Finance lease liability, current	$ 18	$ 17
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities	Other liabilities
Finance lease liability, noncurrent	$ 521	$ 539