Debt (Tables)

9 Months Ended

Sep. 30, 2018

Line of Credit Facility [Line Items]

Schedule of Short-term Debt

	As of September 30, 2018	As of December 31, 2017
	(In $ millions)
Short-Term Borrowings and Current Installments of Long-Term Debt - Third Party and Affiliates
Current installments of long-term debt	74	63
Short-term borrowings, including amounts due to affiliates(1)	78	86
Revolving credit facility(2)	—	97
Accounts receivable securitization facility(3)	77	80
Total	229	326

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⁽¹⁾  The weighted average interest rate was 3.3% and 3.4% as of September 30, 2018 and December 31, 2017, respectively.

⁽²⁾  The weighted average interest rate was 4.1% as of December 31, 2017.

⁽³⁾  The weighted average interest rate was 2.9% and 2.1% as of September 30, 2018 and December 31, 2017, respectively.

Schedule of Long-term Debt

	As of September 30, 2018		As of December 31, 2017
	(In $ millions)
Long-Term Debt
Senior unsecured term loan due 2021(1)	475		494
Senior unsecured notes due 2019, interest rate of 3.250%	347		360
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%	866		897
Senior unsecured notes due 2025, interest rate of 1.250%	346		359
Pollution control and industrial revenue bonds due at various dates through 2030, interest rates ranging from 4.05% to 5.00%	169		169
Nilit bank loans due at various dates through 2026(2)	10		11
Obligations under capital leases due at various dates through 2054	173		208
Subtotal	3,286		3,398
Unamortized debt issuance costs(3)	(16	)	(20	)
Current installments of long-term debt	(74	)	(63	)
Total	3,196		3,315

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⁽¹⁾  The margin for borrowings under the senior unsecured term loan due 2021 was 1.5% above LIBOR at current Company credit ratings.

⁽²⁾  The weighted average interest rate was 1.3% and 1.3% as of September 30, 2018 and December 31, 2017, respectively.

⁽³⁾  Related to the Company's long-term debt, excluding obligations under capital 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 September 30, 2018
	(In $ millions)
Accounts Receivable Securitization Facility
Borrowings outstanding(1)	77
Letters of credit issued	29
Available for borrowing	5
Total borrowing base	111
Maximum borrowing base(2)	120

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⁽¹⁾  The Company borrowed $25 million and repaid $28 million during the nine months endedSeptember 30, 2018.

⁽²⁾  Outstanding accounts receivable transferred to the SPE was $185 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 September 30, 2018
	(In $ millions)
Revolving Credit Facility
Borrowings outstanding(1)	—
Letters of credit issued	—
Available for borrowing(2)	1,000

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⁽¹⁾  The Company borrowed $640 million and repaid $737 million under its senior unsecured revolving credit facility during the nine months endedSeptember 30, 2018.

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