Condensed Consolidated Statements of (Loss) Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net revenues	$ 1,164	$ 1,212
Cost of sales	(1,056)	(1,038)
Gross profit	108	174
Selling, general and administrative expenses	(126)	(123)
Restructuring, asset impairment and other related charges	2	(3)
Other income, net	6	77
Operating (loss) income from continuing operations	(10)	125
Non-operating income, net	23	16
Interest expense, net	(42)	(102)
(Loss) income from continuing operations before tax	(29)	39
Income tax benefit	18	94
(Loss) income from continuing operations	(11)	133
(Loss) income from discontinued operations, net of income taxes	(3)	3
Net (loss) income	(14)	136
Income attributable to non-controlling interests	(1)
Net (loss) income attributable to Pactiv Evergreen Inc. common shareholders	$ (15)	$ 136
From continuing operations
Basic	$ (0.07)	$ 0.99
Diluted	(0.07)	0.99
From discontinued operations
Basic	(0.02)	0.02
Diluted	(0.02)	0.02
Total
Basic	(0.09)	1.01
Diluted	$ (0.09)	$ 1.01