Stockholders' Equity Reclassifications out of AOCI (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of Goods Sold		$ 2,829	$ 3,047	$ 5,098	$ 5,258
Income Tax Expense (Benefit)		78	270	205	203	[1]
Income from continuing operations after income taxes		766	483	1,047	299	[1]
Amounts Reclassified from Accumulated Other Comprehensive Loss		22	6	29	12
Pension Plan
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from Accumulated Other Comprehensive Loss				3	2
Other Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts Reclassified from Accumulated Other Comprehensive Loss				0	(1)
Derivative Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of Goods Sold	[2]	28	8	35	12
Income Tax Expense (Benefit)	[3]	(7)	(2)	(9)	(1)
Income from continuing operations after income taxes		21	6	26	11
Amounts Reclassified from Accumulated Other Comprehensive Loss				26	11
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	[4]	(1)	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	[4]	1	0	2	1
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	[4]	0	(1)	0	(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	[4]	1	1	3	1
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	1	4	2
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax	[3]	0	0	(1)	0
Amounts Reclassified from Accumulated Other Comprehensive Loss		1	1	3	2
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		0	(1)	0	(1)
Reclassification from Accumulated Other Comprehensive Loss, Current Period, Tax	[3]	0	0	0	0
Amounts Reclassified from Accumulated Other Comprehensive Loss		$ 0	$ (1)	$ 0	$ (1)

[1] Period is presented on a pro forma basis, prepared in accordance with Article 11 of Regulation S-X.

[2] Reflected in cost of goods sold.

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

[4] 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.