Supplementary Information Sundry Income (Expense) - Net (Details) - USD ($) $ in Millions		1 Months Ended	2 Months Ended	3 Months Ended	8 Months Ended		9 Months Ended
		Sep. 30, 2017	Aug. 31, 2017	Sep. 30, 2018	Aug. 31, 2017		Sep. 30, 2018
Successor [Member]
Schedule of Sundry Income (Expense) - Net [Line Items]
Royalty income		$ 9		$ 26			$ 111
Interest income		12		13			71
Equity in earnings (losses) of affiliates - net		(4)		13			46
Net gain on sales of businesses and other assets		1		(2)			11
Net exchange (losses) gains		77		(77)			(186)
Non-operating pension and other post employment benefit credit (cost)	[1]	34		91			278
Miscellaneous income and expenses, net	[2]	1		14			73
Sundry income (expense) - net		$ 121		$ 52			$ 293
Predecessor [Member]
Schedule of Sundry Income (Expense) - Net [Line Items]
Royalty income			$ 11		$ 84
Interest income			26		83
Equity in earnings (losses) of affiliates - net			13		55
Net gain on sales of businesses and other assets			2		205	[3]
Net exchange (losses) gains			(195)		(394)
Non-operating pension and other post employment benefit credit (cost)	[1]		(70)		(278)
Miscellaneous income and expenses, net	[2]		30		132
Sundry income (expense) - net			$ (183)		(113)
Food Safety Diagnostic Business [Member] | Predecessor [Member]
Schedule of Sundry Income (Expense) - Net [Line Items]
Pre-tax gain on disposal					162
Gain on disposal, net of tax					$ 86

[1] Includes non-service related components of net periodic benefit credits (costs) (interest cost, expected return on plan assets, amortization of unrecognized (gain) loss, amortization of prior service benefit and curtailment/settlement gain). See Note 2 for discussion of the retrospective adoption of ASU No. 2017-07.

[2] Miscellaneous income and expenses - net, includes interest accrued related to unrecognized tax benefits (Predecessor periods only), gains related to litigation settlements, and other items.

[3] Includes a pre-tax gain of $162 million ($86 million after tax) for the for the period January 1 through August 31, 2017 related to the sale of global food safety diagnostics. See Note 4 for additional information.