Divestitures - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net	$ 0	$ 14	$ 0	$ 411
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	0	0	0	101
Cost of sales	0	0	0	78
Gross profit	0	0	0	23
Selling, general and administrative expenses	0	(1)	0	31
Income (loss) from discontinued operations	0	1	0	(8)
Gain on disposal of discontinued operations	0	17	0	602
Income before income tax	0	18	0	594
Income tax expense	0	(4)	0	(183)
Income from discontinued operations, net	$ 0	$ 14	$ 0	$ 411