Stockholders' Equity Reclassifications out of AOCI (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from Accumulated Other Comprehensive Loss		$ (17)	$ 3	$ 12	$ 15
Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from Accumulated Other Comprehensive Loss				4	4
Other Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from Accumulated Other Comprehensive Loss				1	(1)
Derivative Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	[1]	(22)	1	13	13
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax	[2]	3	0	(6)	(1)
Amounts Reclassified from Accumulated Other Comprehensive Loss		(19)	1	7	12
Prior Service Benefit | Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	[3]	0	0	(1)	0
Actuarial (Gains) Losses | Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	[3]	1	1	3	2
Actuarial (Gains) Losses | Other Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	[3]	1	0	1	(1)
Settlement Loss | Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax	[3]	0	1	3	2
Accumulated Defined Benefit Plans Adjustment Attributable to Parent | Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax		1	2	5	4
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax	[2]	0	0	(1)	0
Amounts Reclassified from Accumulated Other Comprehensive Loss		1	2	4	4
Accumulated Defined Benefit Plans Adjustment Attributable to Parent | Other Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification from Accumulated Other Comprehensive Income (Loss), Current Period, before Tax		1	0	1	(1)
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax	[2]	0	0	0	0
Amounts Reclassified from Accumulated Other Comprehensive Loss		$ 1	$ 0	$ 1	$ (1)

[1] Reflected in cost of goods sold.

[2] Reflected in provision for (benefit from) income taxes from continuing operations.

[3] These accumulated other comprehensive (loss) income components are included in the computation of net periodic benefit (credit) cost of the company's pension and other benefit plans. See Note 16 - Pension Plans and Other Post Employment Benefits, for additional information.