v3.19.1

Pension Plans and Other Postretirement Benefits Net Periodic Non Pension Plan Expense - Level 4 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Document Fiscal Year Focus	2018
Pension and Other Postretirement Benefits Cost (Reversal of Cost)			$ 1
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	$ 5	$ 5	4
Domestic Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	5	5
Defined Benefit Plan, Actuarial Gain (Loss)	(1)	(2)
Domestic Plan [Member] \| Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	0	1	1
Defined Benefit Plan, Interest Cost	1	1	2
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	(4)	0
Amortization of prior service cost	5	5
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(5)	(5)	(3)
Defined Benefit Plan, Actuarial Gain (Loss)	(4)	0	0
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Amortization of prior service cost	0	0
Defined Benefit Plan, Actuarial Gain (Loss)	7	(3)
Foreign Plan [Member] \| Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	0	0
Defined Benefit Plan, Interest Cost	0	0
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)	1	0
Amortization of prior service cost	0	0
Defined Benefit Plan, Actuarial Gain (Loss)	$ 1	$ 0	$ 0

This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.

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Amortization of prior service cost

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- Definition

recognized actuarial loss

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- Definition

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

+ References

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Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of cost recognized for passage of time related to defined benefit plan.

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- Definition

Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of cost (reversal of cost) for pension and other postretirement benefits.

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