Income Taxes - Effective Tax Rate Reconciliation (Details)			12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
U.S. federal income tax rate	21.00%	21.00%	21.00%	21.00%	35.00%
State and local income taxes, net of federal benefit			(1.00%)	1.00%	1.00%
Non-U.S. income (expense)			15.00%	5.00%	(11.00%)
Credits and tax incentives			(37.00%)	(18.00%)	(16.00%)
Foreign derived intangible income			(2.00%)
U.S. tax on non-U.S. earnings			12.00%	3.00%	12.00%
Intercompany sale of certain operating assets				1.00%	(6.00%)
Settlement and return adjustments			(11.00%)	6.00%	(2.00%)
Enacted change in tax laws			2.00%	1.00%	49.00%
Pension settlement			43.00%
Miscellaneous items			(1.00%)		1.00%
Valuation allowance adjustments			(60.00%)	(4.00%)	11.00%
Effective income tax rate			(19.00%)	16.00%	74.00%

Percentage attributable to intra-entity transactions that remain within the group.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) attributable to defined benefit pension plan arrangements.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.

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