Debt (Tables)

3 Months Ended

Mar. 31, 2019

Line of Credit Facility [Line Items]

Schedule of Short-term Debt

	As of March 31, 2019	As of December 31, 2018
	(In $ millions)
Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates
Current installments of long-term debt	363	367
Short-term borrowings, including amounts due to affiliates(1)	56	77
Revolving credit facility(2)	247	40
Accounts receivable securitization facility(3)	77	77
Total	743	561

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⁽¹⁾  The weighted average interest rate was 3.0% and 3.2% as of March 31, 2019 and December 31, 2018, respectively.

⁽²⁾  The weighted average interest rate was 1.5% and 6.0% as of March 31, 2019 and December 31, 2018, respectively.

⁽³⁾  The weighted average interest rate was 3.4% and 3.1% as of March 31, 2019 and December 31, 2018, respectively.

Schedule of Long-term Debt

	As of March 31, 2019		As of December 31, 2018
	(In $ millions)
Long-Term Debt
Senior unsecured notes due 2019, interest rate of 3.250%	337		343
Senior unsecured notes due 2021, interest rate of 5.875%	400		400
Senior unsecured notes due 2022, interest rate of 4.625%	500		500
Senior unsecured notes due 2023, interest rate of 1.125%	841		857
Senior unsecured notes due 2025, interest rate of 1.250%	337		343
Senior unsecured notes due 2027, interest rate of 2.125%	558		568
Pollution control and industrial revenue bonds due at various dates through 2030, interest rates ranging from 4.05% to 5.00%	167		167
Nilit bank loans due at various dates through 2026(1)	10		10
Obligations under finance leases due at various dates through 2054	163		167
Subtotal	3,313		3,355
Unamortized debt issuance costs(2)	(17	)	(18	)
Current installments of long-term debt	(363	)	(367	)
Total	2,933		2,970

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⁽¹⁾  The weighted average interest rate was 1.3% and 1.3% as of March 31, 2019 and December 31, 2018, respectively.

⁽²⁾  Related to the Company's long-term debt, excluding obligations under finance leases

Accounts Receivable Securitization Facility [Member]

Line of Credit Facility [Line Items]

Schedule of Balances Available for Borrowing

The Company's debt balances and amounts available for borrowing under its securitization facility are as follows:

	As of March 31, 2019
	(In $ millions)
Accounts Receivable Securitization Facility
Borrowings outstanding	77
Letters of credit issued	29
Available for borrowing	3
Total borrowing base	109
Maximum borrowing base(1)	120

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⁽¹⁾  Outstanding accounts receivable transferred to the SPE was $188 million.

Revolving Credit Facility [Member]

Line of Credit Facility [Line Items]

Schedule of Balances Available for Borrowing

The Company's debt balances and amounts available for borrowing under its senior unsecured revolving credit facility are as follows:

	As of March 31, 2019
	(In $ millions)
Revolving Credit Facility
Borrowings outstanding(1)	247
Letters of credit issued	—
Available for borrowing(2)	1,003

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⁽¹⁾  The Company borrowed $371 million and repaid $161 million under its senior unsecured revolving credit facility during the three months endedMarch 31, 2019.

⁽²⁾  The margin for borrowings under the senior unsecured revolving credit facility was 1.5% above LIBOR or EURIBOR at current Company credit ratings