CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Income Statement [Abstract]
Net sales	$ 2,450.6	$ 2,548.7	$ 6,738.5	$ 7,061.1	$ 9,648.8
Cost of products sold	1,639.9	1,633.3	4,483.1	4,605.8	6,292.9
Gross profit	810.7	915.4	2,255.4	2,455.3	3,355.9
Selling, general and administrative expenses	607.7	604.4	1,742.0	1,907.1	2,555.9
Restructuring costs, net	2.9	12.4	21.3	64.1	83.1
Impairment of goodwill, intangibles and other assets	834.9	8,133.7	837.8	8,165.3	8,323.3
Operating loss	(634.8)	(7,835.1)	(345.7)	(7,681.2)	(7,606.4)
Non-operating expenses:
Interest expense, net	74.2	105.6	232.6	342.2	446.3
Loss on extinguishment of debt	29.0	0.0	29.0	0.0	(4.1)
Other expense (income), net	7.0	4.2	30.7	(10.5)	11.0
Loss before income taxes	(745.0)	(7,944.9)	(638.0)	(8,012.9)	(8,045.8)
Income tax benefit	(291.1)	(1,219.6)	(268.3)	(1,268.1)	(1,392.8)
Loss from continuing operations	(453.9)	(6,725.3)	(369.7)	(6,744.8)	(6,653.0)
Loss from discontinued operations, net of tax	(171.9)	(585.7)	(317.5)	(381.2)	(289.5)
Net loss	$ (625.8)	$ (7,311.0)	$ (687.2)	$ (7,126.0)	$ (6,942.5)
Weighted average shares outstanding:
Basic (in shares)	423.4	471.0	423.3	481.1	473.7
Diluted (in shares)	423.4	471.0	423.3	481.1	473.7
Basic:
Loss from continuing operations (in USD per share)	$ (1.07)	$ (14.28)	$ (0.87)	$ (14.02)	$ (14.04)
Loss from discontinued operations (in USD per share)	(0.41)	(1.24)	(0.75)	(0.79)	(0.61)
Net loss (in USD per share)	(1.48)	(15.52)	(1.62)	(14.81)	(14.65)
Diluted:
Loss from continuing operations (in USD per share)	(1.07)	(14.28)	(0.87)	(14.02)	(14.04)
Loss from discontinued operations (in USD per share)	(0.41)	(1.24)	(0.75)	(0.79)	(0.61)
Net loss (in USD per share)	$ (1.48)	$ (15.52)	$ (1.62)	$ (14.81)	$ (14.65)