Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill by Reporting Segment (Detail) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Mar. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Balance as of December 31, 2019	[1]	$ 147
Goodwill impairment		(91)	$ (3,500)
Balance as of March 31, 2020		56	147	[1]
EARC [Member]
Goodwill [Line Items]
Balance as of December 31, 2019	[1]	91
Goodwill impairment		(91)
Balance as of March 31, 2020	[1]		91
MENA [Member]
Goodwill [Line Items]
Balance as of December 31, 2019	[1]	47
Balance as of March 31, 2020		47	47	[1]
Storage Solutions [Member]
Goodwill [Line Items]
Balance as of December 31, 2019	[1]	9
Balance as of March 31, 2020		$ 9	$ 9	[1]

[1] As of January 1, 2020, we had approximately $3.5 billion of cumulative impairment charges recorded in conjunction with our impairment assessments performed during 2019 and 2018, as previously described in the 2019 Form 10-K