Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2020

Supplemental Cash Flow Elements [Abstract]

Summary of Supplemental Cash Flow Information [Table Text Block]

	Three Months Ended March 31,
(In millions)	2020			2019
Net cash provided by operating activities included:
Interest paid (net of amounts capitalized)	$	210		$	173
Non-cash investing and financing activities:
Net transfers of property, plant and equipment from (to) materials and supplies inventories	(1		)	1

Summary of Reconciliation of Additions to Property, Plant and Equipment to Total Capital Expenditures [Table Text Block]

The following is the change of additions to property, plant and equipment related to capital accruals:

	Three Months Ended March 31,
(In millions)	2020			2019
(Decrease)/increase in capital accruals	$	(61	)	$	(71	)