Guarantees, Contingencies and Commitments (Tables)

12 Months Ended

Dec. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Schedule of Unconditional Purchase Obligations and Commitments

The following table shows aggregate information for certain unconditional purchase obligations and commitments at December 31, 2020, which are not included elsewhere within these Consolidated Financial Statements:

			Payments Due by Period
	Total		2021		2022 and 2023		2024 and 2025		Thereafter
	(In millions)
Capital expenditures	$	2,837	$	868	$	1,469	$	500	$	—
Operating expenses	236		167		63		5		1
Transportation and related contracts	2,867		310		756		493		1,308