CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net sales	$ 9,385	$ 9,715	$ 10,154
Cost of products sold	6,306	6,496	6,636
Gross profit	3,079	3,219	3,518
Selling, general and administrative expenses	2,189	2,451	2,648
Restructuring costs, net	21	27	87
Impairment of goodwill, intangibles and other assets	1,503	1,223	8,337
Operating loss	(634)	(482)	(7,554)
Non-operating expenses:
Interest expense, net	274	303	446
Loss on extinguishment of debt	20	28	4
Other (income) expense, net	78	39	(12)
Loss before income taxes	(1,006)	(852)	(7,992)
Income tax benefit	(236)	(1,038)	(1,359)
Income (loss) from continuing operations	(770)	186	(6,633)
Loss from discontinued operations, net of tax	0	(79)	(309)
Net income (loss)	$ (770)	$ 107	$ (6,942)
Weighted average common shares outstanding:
Basic (in shares)	424.1	423.3	473.7
Diluted (in shares)	424.1	423.9	473.7
Basic:
Income (loss) from continuing operations (in USD per share)	$ (1.82)	$ 0.44	$ (14.00)
Loss from discontinued operations (in USD per share)	0	(0.19)	(0.65)
Net income (loss) (in USD per share)	(1.82)	0.25	(14.65)
Diluted:
Income (loss) from continuing operations (in USD per share)	(1.82)	0.44	(14.00)
Loss from discontinued operations (in USD per share)	0	(0.19)	(0.65)
Net income (loss) (in USD per share)	$ (1.82)	$ 0.25	$ (14.65)