Goodwill (Schedule of Goodwill) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Roll Forward]
Balance at beginning of period		$ 4,442	$ 3,046
Goodwill acquired		8	1,552
Goodwill impairment	$ (25)	(25)	0	$ 0
Foreign currency translation		5	(156)
Balance at end of period	4,430	4,430	4,442	3,046
Accumulated impairments balance at December 31, 2019	1,001	1,001
Americas Beverage | Operating segments
Goodwill [Roll Forward]
Balance at beginning of period		842	844
Goodwill acquired		0	0
Goodwill impairment		0
Foreign currency translation		23	(2)
Balance at end of period	865	865	842	844
Accumulated impairments balance at December 31, 2019	29	29
European Beverage | Operating segments
Goodwill [Roll Forward]
Balance at beginning of period		531	564
Goodwill acquired		0	0
Goodwill impairment		0
Foreign currency translation		3	(33)
Balance at end of period	534	534	531	564
Accumulated impairments balance at December 31, 2019	73	73
European Food | Operating segments
Goodwill [Roll Forward]
Balance at beginning of period		1,291	1,355
Goodwill acquired		0	0
Goodwill impairment		0
Foreign currency translation		(22)	(64)
Balance at end of period	1,269	1,269	1,291	1,355
Accumulated impairments balance at December 31, 2019	724	724
Transit Packaging | Operating segments
Goodwill [Roll Forward]
Balance at beginning of period		1,506	0
Goodwill acquired		8	1,552
Goodwill impairment		0
Foreign currency translation		(5)	(46)
Balance at end of period	1,509	1,509	1,506	0
Accumulated impairments balance at December 31, 2019	0	0
Non-reportable segments | Operating segments
Goodwill [Roll Forward]
Balance at beginning of period		272	283
Goodwill acquired		0	0
Goodwill impairment		(25)
Foreign currency translation		6	(11)
Balance at end of period	253	253	$ 272	$ 283
Accumulated impairments balance at December 31, 2019	$ 175	$ 175