Nature of Operations and Basis of Presentation - Additional Information (Details) - shares			3 Months Ended
	Sep. 16, 2020	Feb. 04, 2020	Mar. 31, 2020	Mar. 31, 2021
ASU 2018-14
Subsidiary Sale Of Stock [Line Items]
Change in accounting principle, accounting standards update, adopted				true
Change in accounting principle accounting standards update immaterial effect				true
Discontinued Operations | Reynolds Consumer Products Inc.
Subsidiary Sale Of Stock [Line Items]
Shares repurchased and canceled during the period (in shares)		35,791,985	35,791,985
Discontinued Operations | Graham Packaging Company Inc.
Subsidiary Sale Of Stock [Line Items]
Shares repurchased and canceled during the period (in shares)	14,036,726