Benefit Obligations (Tables)

12 Months Ended

Dec. 31, 2019

Defined Benefit Plan Disclosure [Line Items]

Schedule of Contributions to Multiemployer Defined Benefit Pension Plans

Contributions made by the Company to the German multiemployer plan are as follows:

	Year Ended December 31,
	2019	2018	2017
	(In $ millions)
Multiemployer defined benefit plan	8	8	7

Schedule of Postemployment Obligations

Postemployment obligations are as follows:

	As of December 31,
	2019	2018
	(In $ millions)
Postemployment benefits	7	8

Schedule of Contributions to Defined Contribution Plans

The amount of costs recognized for the Company's defined contribution plans are as follows:

	Year Ended December 31,
	2019	2018	2017
	(In $ millions)
Defined contribution plans	42	40	40

Schedule of Company's Pension and Post Retirement Benefit Plans

Summarized information on the Company's pension and postretirement benefit plans is as follows:

	Pension Benefits As of December 31,				Postretirement Benefits As of December 31,
	2019		2018		2019		2018
	(In $ millions)
Change in Projected Benefit Obligation
Projected benefit obligation as of beginning of period	3,412		3,728		59		66
Service cost	9		9		—		1
Interest cost	115		104		2		2
Net actuarial (gain) loss(1)	377		(163	)	8		(4	)
Settlements	(3	)	—		—		—
Benefits paid	(230	)	(235	)	(5	)	(4	)
Curtailments	—		(1	)	—		—
Special termination benefits	1		2		—		—
Exchange rate changes	(3	)	(32	)	—		(2	)
Other(2)	(68	)	—		—		—
Projected benefit obligation as of end of period	3,610		3,412		64		59
Change in Plan Assets
Fair value of plan assets as of beginning of period	2,915		3,251		—		—
Actual return on plan assets	467		(124	)	—		—
Employer contributions	42		43		5		4
Settlements	(3	)	—		—		—
Benefits paid(3)	(230	)	(235	)	(5	)	(4	)
Other(2)	(52	)	—		—		—
Exchange rate changes	2		(20	)	—		—
Fair value of plan assets as of end of period	3,141		2,915		—		—
Funded status as of end of period	(469	)	(497	)	(64	)	(59	)
Amounts Recognized in the Consolidated Balance Sheets Consist of:
Noncurrent Other assets	77		30		—		—
Current Other liabilities	(23	)	(24	)	(4	)	(5	)
Benefit obligations	(523	)	(503	)	(60	)	(54	)
Net amount recognized	(469	)	(497	)	(64	)	(59	)
Amounts Recognized in Accumulated Other Comprehensive Income Consist of:
Net actuarial (gain) loss(4)	15		8		—		—
Prior service (benefit) cost	—		—		(1	)	—
Net amount recognized(5)	15		8		(1	)	—

______________________________

⁽¹⁾  Primarily relates to changes in discount rates.

⁽²⁾  Primarily relates to lump sum offers for certain participants of the US qualified defined benefit pension plan.

⁽³⁾  Includes benefit payments to nonqualified pension plans of $21 million and $22 million as of December 31, 2019 and 2018, respectively.

⁽⁴⁾  Relates to the pension plans of the Company's equity method investments.

⁽⁵⁾ 

Amount shown net of an income tax benefit of $4 million and $5 million as of December 31, 2019 and 2018, respectively, in the consolidated statements of equity (Note 17).

Schedule of Percentage of US and International Projected Benefit Obligation

The percentage of US and international projected benefit obligation at the end of the period is as follows:

	Pension Benefits As of December 31,		Postretirement Benefits As of December 31,
	2019	2018	2019	2018
	(In percentages)
US plans	81	82	55	57
International plans	19	18	45	43
Total	100	100	100	100

Schedule of Percentage of US and International Fair Value of Plan Assets

The percentage of US and international fair value of plan assets at the end of the period is as follows:

	Pension Benefits As of December 31,
	2019	2018
	(In percentages)
US plans	87	88
International plans	13	12
Total	100	100

Schedule of Pension Plans with Projected Benefit Obligations in Excess of Plan Assets

Other postretirement plans with accumulated postretirement benefit obligations in excess of plan assets are as follows:

	As of December 31,
	2019	2018
	(In $ millions)
Accumulated postretirement benefit obligation	64	58
Fair value of plan assets	—	—

Pension plans with projected benefit obligations in excess of plan assets are as follows:

	As of December 31,
	2019	2018
	(In $ millions)
Projected benefit obligation	881	840
Fair value of plan assets	337	314

Schedule of Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets

Pension plans with accumulated benefit obligations in excess of plan assets are as follows:

	As of December 31,
	2019	2018
	(In $ millions)
Accumulated benefit obligation	776	749
Fair value of plan assets	255	243

Schedule of Accumulated Benefit Obligation for All Defined Benefit Pension Plans

The accumulated benefit obligation for all defined benefit pension plans is as follows:

	As of December 31,
	2019	2018
	(In $ millions)
Accumulated benefit obligation	3,584	3,390

Schedule of Net Periodic Benefit Costs

The components of net periodic benefit cost are as follows:

	Pension Benefits Year Ended December 31,						Postretirement Benefits Year Ended December 31,
	2019		2018		2017		2019	2018		2017
	(In $ millions)
Service cost	9		9		9		—	1		1
Interest cost	115		104		107		2	2		1
Expected return on plan assets	(185	)	(210	)	(198	)	—	—		—
Amortization of prior service cost / (credit)	—		—		—		—	—		(1	)
Recognized actuarial (gain) loss	79		169		48		8	(4	)	(2	)
Curtailment (gain) loss	—		(1	)	—		—	—		—
Special termination benefit	1		2		1		—	—		—
Total	19		73		(33	)	10	(1	)	(1	)

Schedule of Nonqualified Pension Plans Funded with Nonqualified Trusts

The Company maintains nonqualified pension plans funded with nonqualified trusts for certain US employees as follows:

	As of December 31,
	2019	2018
	(In $ millions)
Nonqualified Trust Assets
Marketable securities	24	31
Noncurrent Other assets, consisting of insurance contracts	35	37
Nonqualified Pension Obligations
Current Other liabilities	20	21
Benefit obligations	219	213

Schedule of Expense Related to Nonqualified Pension Plans Included in Net Periodic Benefit Cost, Excluding Returns on Assets

(Income) expense relating to the nonqualified pension plans included in net periodic benefit cost, excluding returns on the assets held by the nonqualified trusts, is as follows:

	Year Ended December 31,
	2019	2018		2017
	(In $ millions)
Total	26	(3	)	18

Schedule of Principle Weighted Average Assumptions Used to Determine Benefit Obligations and Benefit Cost

The principal weighted average assumptions used to determine benefit obligation are as follows:

	Pension Benefits As of December 31,		Postretirement Benefits As of December 31,
	2019	2018	2019	2018
	(In percentages)
Discount Rate Obligations
US plans	3.2	4.2	3.1	4.1
International plans	1.4	2.1	2.7	3.4
Combined	2.8	3.8	2.9	3.8
Rate of Compensation Increase
US plans	N/A	N/A
International plans	2.6	2.8
Combined	2.6	2.8

The principal weighted average assumptions used to determine net periodic benefit cost are as follows:

	Pension Benefits Year Ended December 31,			Postretirement Benefits Year Ended December 31,
	2019	2018	2017	2019	2018	2017
	(In percentages)
Discount Rate Obligations
US plans	4.2	3.5	3.9	4.1	3.4	3.8
International plans	2.1	2.1	2.1	3.4	3.2	3.3
Combined	3.8	3.3	3.7	3.8	3.2	3.4
Discount Rate Service Cost
US plans	3.1	1.9	1.2	4.6	3.7	4.0
International plans	2.5	2.3	2.5	3.4	3.3	3.4
Combined	2.5	2.2	2.5	3.4	2.9	2.9
Discount Rate Interest Cost
US plans	3.9	3.1	3.3	3.8	3.0	3.1
International plans	1.8	1.7	1.7	3.2	2.9	2.9
Combined	3.5	2.9	3.1	3.5	2.9	2.9
Expected Return on Plan Assets
US plans	6.7	6.8	7.5
International plans	5.6	5.9	5.9
Combined	6.5	6.7	7.3
Rate of Compensation Increase
US plans	N/A	N/A	N/A
International plans	2.8	2.8	2.8
Combined	2.8	2.8	2.8
Interest Crediting Rate
US plans	3.0	2.8	2.3
International plans	N/A	N/A	N/A
Combined	3.0	2.8	2.3

Schedule of Health Care Cost Trend Rates

The Company's health care cost trend assumptions for US postretirement medical plan's net periodic benefit cost are as follows:

	As of December 31,
	2019	2018	2017
	(In percentages, except year)
Health care cost trend rate assumed for next year	8.0	8.5	9.0
Health care cost trend ultimate rate	5.0	5.0	5.0
Health care cost trend ultimate rate year	2026	2026	2026

Schedule of Weighted Average Target Asset Allocations

The weighted average target asset allocations for the Company's pension plans in 2019 are as follows:

	US Plans	International Plans
	(In percentages)
Bonds - domestic to plans	80	58
Equities - domestic to plans	10	15
Equities - international to plans	10	—
Other	—	27
Total	100	100

Schedule of Fair Values of Pension Plan Assets

	Fair Value Measurement
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Total
	As of December 31,
	2019	2018	2019	2018	2019	2018
	(In $ millions)
Assets
Cash and cash equivalents	8	2	—	—	8	2
Derivatives
Swaps	—	—	7	3	7	3
Equity securities
International companies	77	59	—	—	77	59
Fixed income
Corporate debt	—	—	762	691	762	691
Treasuries, other debt	35	127	1,403	1,293	1,438	1,420
Mortgage backed securities	—	—	15	8	15	8
Insurance contracts	—	—	47	35	47	35
Other	4	4	1	1	5	5
Total investments, at fair value(1)	124	192	2,235	2,031	2,359	2,223
Liabilities
Derivatives
Swaps	—	—	7	3	7	3
Total liabilities	—	—	7	3	7	3
Total net assets(2)	124	192	2,228	2,028	2,352	2,220

______________________________

⁽¹⁾  Certain investments that are measured at fair value using the NAV per share practical expedient have not been classified in the fair value hierarchy. Total investments, at fair value, for the year ended December 31, 2019 excludes investments in common/collective trusts, registered investment companies and short-term investment funds with fair values of $689 million, $62 million and $35 million, respectively. Total investments, at fair value, for the year ended December 31, 2018 excludes investments in common/collective trusts, registered investment companies and short-term investment funds with fair values of $595 million, $54 million and $29 million, respectively.

⁽²⁾ 

Total net assets excludes non-financial plan receivables and payables of $29 million and $26 million, respectively, as of December 31, 2019 and $36 million and $19 million, respectively, as of December 31, 2018. Non-financial items include due to/from broker, interest receivables and accrued expenses.

Schedule of Company Commitments to Fund Benefit Obligations

Benefit obligation funding is as follows:

	Total Expected 2020
	(In $ millions)
Cash contributions to defined benefit pension plans	23
Benefit payments to nonqualified pension plans	20
Benefit payments to other postretirement benefit plans	5

Schedule of Pension Benefits Expected to be Paid from the Plans or From the Company's Assets

Pension and postretirement benefits expected to be paid are as follows:

	Pension Benefit Payments(1)	Company Portion of Postretirement Benefit Cost(2)
	(In $ millions)
2020	238	5
2021	228	4
2022	225	4
2023	223	4
2024	219	4
2025-2029	1,038	17

______________________________

⁽¹⁾  Payments are expected to be made primarily from plan assets.

⁽²⁾ 

Payments are expected to be made primarily from Company assets.

Other Postretirement Benefits Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets

Other postretirement plans with accumulated postretirement benefit obligations in excess of plan assets are as follows:

	As of December 31,
	2019	2018
	(In $ millions)
Accumulated postretirement benefit obligation	64	58
Fair value of plan assets	—	—