Income Taxes Income Taxes - Reconciliation to US Statutory Rate (Details) - USD ($) $ in Millions		3 Months Ended	4 Months Ended	8 Months Ended		12 Months Ended
		Mar. 31, 2017	Dec. 31, 2017	Aug. 31, 2017		Dec. 31, 2016	Dec. 31, 2015
Successor [Member]
Statutory U.S. federal income tax rate			35.00%
Equity earning effect			0.90%
Lower effective tax rates on international operations - net			(9.50%)
Acquisitions, divestitures, and ownership restructuring activities	[1],[2]		15.80%
U.S. research and development credit			0.40%
Exchange gains/losses	[3]		(1.80%)
Impact of U.S. Tax Reform			126.10%
Excess tax benefits from stock-compensation			0.10%
Tax settlements and expiration of statue of limitations			0.00%
Other, net			1.50%
Effective Income Tax Rate			168.50%
Benefit related to internal legal entity restructuring			$ 261
Predecessor [Member]
Statutory U.S. federal income tax rate				35.00%		35.00%	35.00%
Equity earning effect				(0.50%)		(0.80%)	(0.70%)
Lower effective tax rates on international operations - net				(11.40%)		(9.20%)	(9.70%)
Acquisitions, divestitures, and ownership restructuring activities	[2]			5.20%		1.90%	(0.20%)
U.S. research and development credit				(0.80%)		(0.70%)	(1.50%)
Exchange gains/losses	[3]			(12.90%)		1.90%	10.20%
Excess tax benefits from stock-compensation	[4]			(1.70%)
Tax settlements and expiration of statue of limitations				(3.80%)	[5]	(1.10%)	(1.50%)
Other, net				(0.80%)		(3.50%)	(3.20%)
Effective Income Tax Rate				8.30%		23.50%	28.40%
Continuing Operations [Member] | Predecessor [Member]
Tax benefit related to reduction in company's unrecognized tax benefits		$ 53		$ 53

[1] Includes a net tax benefit of $261 million related to an internal legal entity restructuring associated with the Intended Business Separations.

[2] See Notes 3 and 4 for additional information.

[3] Principally reflects the impact of foreign exchange gains and losses on net monetary assets for which no corresponding tax impact is realized. Further information about the company's foreign currency hedging program is included in Note 6 and Note 18 under the heading Foreign Currency Risk.

[4] Reflects the impact of the adoption of Accounting Standards Update ("ASU") 2016-09, which resulted in the recognition of excess tax benefits related to equity compensation in the (benefit from) provision for income taxes on continuing operations. See Note 2 for additional information.

[5] The period January 1 through August 31, 2017 includes a tax benefit of $53 million for accrued interest reversals (recorded in sundry income - net).