LyondellBasell Industries (LYB) 10-Q 26 Apr 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 24, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Amendment Flag	false
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2019
Current Fiscal Year End Date	--12-31
Entity Central Index Key	0001489393
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Registrant Name	LyondellBasell Industries N.V.
Trading Symbol	LYB
Entity Common Stock, Shares Outstanding		370,327,226
Entity Emerging Growth Company	false
Entity Small Business	false

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Sales and other operating revenues:
Trade	$ 8,565	$ 9,530
Related parties	213	237
Sales revenue, net	8,778	9,767
Operating costs and expenses:
Cost of sales	7,446	8,012
Selling, general and administrative expenses	287	233
Research and development expenses	28	28
Costs and expenses	7,761	8,273
Operating income	1,017	1,494
Interest expense	(92)	(91)
Interest income	6	11
Other income, net	25	24
Income before equity investments and income taxes	956	1,438
Income from equity investments	64	96
Income before income taxes	1,020	1,534
Provision for income taxes	203	303
Net income	817	1,231
Dividends on A. Schulman Special Stock	(2)
Net income attributable to the Company shareholders	$ 815	$ 1,231
Net income (loss) attributable to the Company shareholders - Basic:
Net income attributable to the Company shareholders — Basic (in dollars per share)	$ 2.19	$ 3.12
Net income (loss) attributable to the Company shareholders - Diluted:
Net income attributable to the Company shareholders — Diluted (in dollars per share)	$ 2.19	$ 3.11

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Net income	$ 817	$ 1,231
Other comprehensive income (loss), net of tax –
Financial derivatives	(50)	7
Defined benefit pension and other postretirement benefit plans	5	7
Foreign currency translations	(10)	40
Total other comprehensive income (loss), net of tax	(55)	54
Comprehensive income	762	1,285
Dividends on A. Schulman Special Stock	(2)
Comprehensive income attributable to the Company shareholders	$ 760	$ 1,285

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 339	$ 332
Restricted cash	19	69
Short-term investments	423	892
Accounts receivable:
Trade, net	3,508	3,355
Related parties	172	148
Inventories	4,496	4,515
Prepaid expenses and other current assets	1,329	1,255
Total current assets	10,286	10,566
Operating lease assets	1,534
Property, plant and equipment at cost	19,244	18,701
Less: Accumulated depreciation	(6,447)	(6,224)
Property, plant and equipment, net	12,797	12,477
Investments and long-term receivables:
Investment in PO joint ventures	464	469
Equity investments	1,650	1,611
Other investments and long-term receivables	23	23
Goodwill	1,803	1,814
Intangible assets, net	945	965
Other assets	387	353
Total assets	29,889	28,278
Current liabilities:
Current maturities of long-term debt	5	5
Short-term debt	2,377	885
Accounts payable:
Trade	2,610	2,560
Related parties	577	527
Accrued liabilities	1,443	1,536
Total current liabilities	7,012	5,513
Long-term debt	7,522	8,497
Operating lease liabilities	1,282
Other liabilities	1,830	1,897
Deferred income taxes	1,967	1,975
Commitments and contingencies
Redeemable non-controlling interests	116	116
Stockholders’ equity:
Ordinary shares, €0.04 par value, 1,275 million shares authorized, 370,326,103 and 375,696,661 shares outstanding, respectively	22	22
Additional paid-in capital	6,996	7,041
Retained earnings	7,206	6,763
Accumulated other comprehensive loss	(1,418)	(1,363)
Treasury stock, at cost, 29,884,177 and 24,513,619 ordinary shares, respectively	(2,668)	(2,206)
Total Company share of stockholders’ equity	10,138	10,257
Non-controlling interests	22	23
Total equity	10,160	10,280
Total liabilities, redeemable non-controlling interests and equity	$ 29,889	$ 28,278

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - € / shares	Mar. 31, 2019	Dec. 31, 2018
Stockholders’ equity:
Ordinary shares par value (in euros per share)	€ 0.04	€ 0.04
Ordinary shares, shares authorized (in shares)	1,275,000,000	1,275,000,000
Ordinary shares, shares outstanding (in shares)	370,326,103	375,696,661
Treasury stock, shares (in shares)	29,884,177	24,513,619

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 817	$ 1,231
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	322	299
Amortization of debt-related costs	1	4
Share-based compensation	12	9
Equity investments -
Equity income	(64)	(96)
Distributions of earnings, net of tax	25	0
Deferred income taxes	46	61
Changes in assets and liabilities that provided (used) cash:
Accounts receivable	(206)	(196)
Inventories	(3)	(55)
Accounts payable	105	72
Other, net	(398)	(323)
Net cash provided by operating activities	657	1,006
Cash flows from investing activities:
Expenditures for property, plant and equipment	(599)	(429)
Purchases of available-for-sale debt securities	0	(50)
Proceeds from sales and maturities of available-for-sale debt securities	308	335
Proceeds from sales and maturities of equity securities	162	0
Other, net	(49)	(45)
Net cash used in investing activities	(178)	(189)
Cash flows from financing activities:
Repurchases of Company ordinary shares	(512)	(119)
Dividends paid - common stock	(372)	(395)
Purchase of non-controlling interest	(63)	0
Issuance of short-term debt	2,000	0
Repayment of long-term debt	(1,000)	0
Net repayments of commercial paper	(559)	0
Other, net	(15)	(6)
Net cash used in financing activities	(521)	(520)
Effect of exchange rate changes on cash	(1)	15
(Decrease) increase in cash and cash equivalents and restricted cash	(43)	312
Cash and cash equivalents and restricted cash at beginning of period	401	1,528
Cash and cash equivalents and restricted cash at end of period	$ 358	$ 1,840

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Ordinary Shares	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Company Share of Stockholders' Equity	Non-Controlling Interests
Beginning balance at Dec. 31, 2017		$ 31	$ (15,749)	$ 10,206	$ 15,746	$ (1,285)	$ 8,949	$ 1
Net income	$ 1,231	0	0	0	1,231	0	1,231	0
Other comprehensive income (loss)	54	0	0	0	0	54	54	0
Share-based compensation		0	22	8	0	0	30	0
Dividends- common stock		0	0	0	(395)	0	(395)	0
Repurchases of Company ordinary shares		0	(138)	0	0	0	(138)	0
Purchase of non-controlling interest		0	0	(28)	0	0	(28)	0
Ending balance at Mar. 31, 2018		31	(15,865)	10,186	16,677	(1,301)	9,728	1
Adoption of accounting standards	(70)	0	0	0	95	(70)	25	0
Beginning balance at Dec. 31, 2018	10,280	22	(2,206)	7,041	6,763	(1,363)	10,257	23
Net income	817	0	0	0	817	0	817	0
Other comprehensive income (loss)	(55)	0	0	0	0	(55)	(55)	0
Share-based compensation		0	26	2	0	0	28	0
Dividends- common stock		0	0	0	(372)	0	(372)	0
Dividends- A. Schulman Special Stock	(2)	0	0	0	(2)	0	(2)	0
Repurchases of Company ordinary shares		0	(488)	0	0	0	(488)	0
Purchase of non-controlling interest		0	0	(47)	0	0	(47)	(1)
Ending balance at Mar. 31, 2019	$ 10,160	$ 22	$ (2,668)	$ 6,996	$ 7,206	$ (1,418)	$ 10,138	$ 22

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parentheticals) - $ / shares	1 Months Ended	3 Months Ended
	Feb. 28, 2019	Mar. 31, 2019	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Common stock, dividends per share (in dollars per share)		$ 1	$ 1
Special stock, dividends per share (in dollars per share)	$ 15	$ 15

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2019
Disclosure Text Block [Abstract]
Basis of Presentation [Text Block]	1. Basis of Presentation LyondellBasell Industries N.V., together with its consolidated subsidiaries (collectively “LyondellBasell N.V.”), is a worldwide manufacturer of chemicals and polymers, a refiner of crude oil, a significant producer of gasoline blending components and a developer and licensor of technologies for production of polymers. Unless otherwise indicated, the “Company,” “we,” “us,” “our” or similar words are used to refer to LyondellBasell N.V. The accompanying Consolidated Financial Statements are unaudited and have been prepared from the books and records of LyondellBasell N.V. in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X for interim financial information. Accordingly, they do not include all of the information and notes required by accounting principles generally accepted in the United States (“U.S. GAAP”) for complete financial statements. In our opinion, all adjustments, including normal recurring adjustments, considered necessary for a fair statement have been included. The results for interim periods are not necessarily indicative of results for the entire year. These Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 .

Accounting and Reporting Change

Accounting and Reporting Changes	3 Months Ended
	Mar. 31, 2019
Accounting Changes and Error Corrections [Abstract]
Accounting and Reporting Changes [Text Block]	2. Accounting and Reporting Changes Standard Description Period of Adoption Effect on the Consolidated Financial Statements Recently Adopted Guidance ASU 2016-02, Leases (Topic 842) (including subsequent amendments: ASU 2018-01, Land Easement Practical Expedient for Transition to Topic 842, ASU 2018-10, Codification Improvements to Topic 842 , ASU 2018-11, Leases, Targeted Improvements , and ASU 2019-01, Leases Codification Improvements) The new guidance establishes a right-of-use model that requires a lessee to recognize a right-of-use asset and lease liability on the balance sheet for all leases with a term greater than 12 months. Leases are classified as finance or operating, with classification affecting the timing and classification of expense recognition. This guidance also enhances disclosure requirements and is effective for public entities for annual periods beginning after December 15, 2018. First quarter of 2019 See Note 8 for disclosures related to the adoption of this guidance. ASU 2018-09, Codification Improvements This guidance makes minor improvements in various subtopics. Many of the amendments within the ASU do not require transition and are effective upon issuance. However, some amendments are not effective until fiscal years beginning after December 15, 2018. First quarter of 2019 The adoption of the new guidance did not have a material impact on our Consolidated Financial Statements. Standard Description Period of Adoption Effect on the Consolidated Financial Statements ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments This amendment requires financial assets measured at amortized cost basis to be presented at the net amount expected to be collected, resulting in the use of a current expected credit loss (“CECL”) model when measuring an impairment of financial instruments. Credit losses related to available-for-sale securities should be recorded in the consolidated income statement through an allowance for credit losses. Estimated credit losses utilizing the CECL model are based on historical experience, current conditions and forecasts that affect collectability. This ASU also modifies the impairment model for available-for-sale debt securities by eliminating the concept of “other than temporary” as well as providing a simplified accounting model for purchased financial assets with credit deterioration since their origination. The guidance will be effective for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. First quarter of 2019 (early adopted) The adoption of the new guidance did not have a material impact on our Consolidated Financial Statements. Accounting Guidance Issued But Not Adopted as of March 31, 2019 ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Change to the Disclosure Requirements for Fair Value Measurement This guidance eliminates, adds and modifies certain disclosure requirements for fair value measurements as part of its disclosure framework project. It removes transfer disclosures between Level 1 and Level 2 of the fair value hierarchy, and adds disclosures for the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. The guidance will be effective for public entities for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. January 1, 2020 We are currently assessing the impact of this guidance on our Consolidated Financial Statements. ASU 2018-14, Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20): Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans This guidance changes disclosure requirements for employers that sponsor defined benefit pension and/or other postretirement benefit plans. It eliminates the requirement of certain disclosures that are no longer considered cost beneficial; however, it adds more pertinent disclosures. The guidance will be effective for public entities for annual periods ending after December 15, 2020. Early adoption is permitted. January 1, 2021 We are currently assessing the impact of this guidance on our Consolidated Financial Statements. Standard Description Period of Adoption Effect on the Consolidated Financial Statements ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract This guidance requires a customer in a hosted, cloud computing arrangement that is a service contract to follow the internal-use software guidance to determine which implementation costs to capitalize as assets or expense as incurred. Capitalized costs are amortized over the term of the hosting arrangement when the recognized asset is ready for its intended use. The guidance will be effective for public entities for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. January 1, 2020 We are currently assessing the impact of this guidance on our Consolidated Financial Statements.

Business Combination

Business Combination	3 Months Ended
	Mar. 31, 2019
Business Combinations [Abstract]
Business Combination [Text Block]	3. Business Combination On August 21, 2018 , we acquired all of the outstanding common stock of A. Schulman Inc. , a Delaware corporation, for an aggregate purchase price of approximately $1,940 million . The purchase price was allocated based on the fair value of the acquired assets and liabilities, redeemable noncontrolling interests and noncontrolling interests assumed on the acquisition date. The allocation is based on preliminary information and is subject to change as additional information concerning final asset and liability valuations is obtained. The primary areas of the preliminary purchase price allocation that have not been finalized relate to the fair value of property, plant and equipment, intangible assets, contingencies and the related impacts on deferred income taxes and cumulative translation adjustments. There were no material purchase price adjustments recorded during the three months ended March 31, 2019.

Revenues

Revenues	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenues [Text Block]	4 . Revenues Contract Balances— Contract liabilities were $195 million and $138 million at March 31, 2019 and December 31, 2018 , respectively. Revenue recognized in the reporting period, included in the contract liability balance at the beginning of the period, was immaterial. Disaggregation of Revenues— The following table presents our revenues disaggregated by key products for the three months ended March 31, 2019 and 2018 , respectively: Three Months Ended March 31, Millions of dollars 2019 2018 Sales and other operating revenues: Olefins and co-products $ 748 $ 1,020 Polyethylene 1,666 1,978 Polypropylene 1,315 1,520 PO and derivatives 559 649 Oxyfuels and related products 664 795 Intermediate chemicals 609 848 Compounding and solutions 1,140 609 Advanced polymers 198 228 Refined products 1,743 2,002 Other 136 118 Total $ 8,778 $ 9,767 The following table presents our revenues disaggregated by geography, based upon the location of the customer, for the three months ended March 31, 2019 and 2018 , respectively: Three Months Ended March 31, Millions of dollars 2019 2018 Sales and other operating revenues: United States $ 3,893 $ 4,653 Germany 731 821 Mexico 528 478 Italy 387 394 France 362 350 Japan 203 301 China 298 282 The Netherlands 252 276 Other 2,124 2,212 Total $ 8,778 $ 9,767

Accounts Receivable

Accounts Receivable	3 Months Ended
	Mar. 31, 2019
Receivables [Abstract]
Accounts Receivable [Text Block]	5. Accounts Receivable Our allowance for doubtful accounts receivable, which is reflected in the Consolidated Balance Sheets as a reduction of accounts receivable, totaled $15 million and $16 million at March 31, 2019 and December 31, 2018 , respectively.

Inventories

Inventories	3 Months Ended
	Mar. 31, 2019
Inventory Disclosure [Abstract]
Inventories [Text Block]	6. Inventories Inventories consisted of the following components: Millions of dollars March 31, December 31, Finished goods $ 3,010 $ 3,066 Work-in-process 215 138 Raw materials and supplies 1,271 1,311 Total inventories $ 4,496 $ 4,515

Debt

Debt	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Debt [Text Block]	7 . Debt Long-term loans, notes and other long-term debt, net of unamortized discount and debt issuance cost, consisted of the following: Millions of dollars March 31, December 31, Senior Notes due 2019, $1,000 million, 5.0% $ — $ 988 Senior Notes due 2021, $1,000 million, 6.0% ($5 million of debt issuance cost) 982 975 Senior Notes due 2024, $1,000 million, 5.75% ($6 million of debt issuance cost) 994 993 Senior Notes due 2055, $1,000 million, 4.625% ($16 million of discount; $11 million of debt issuance cost) 973 973 Term Loan due 2022, $4,000 million — — Guaranteed Notes due 2022, €750 million, 1.875% ($2 million of discount; $2 million of debt issuance cost) 840 855 Guaranteed Notes due 2023, $750 million, 4.0% ($5 million of discount; $3 million of debt issuance cost) 742 742 Guaranteed Notes due 2027, $1,000 million, 3.5% ($8 million of discount; $7 million of debt issuance cost) 986 964 Guaranteed Notes due 2027, $300 million, 8.1% 300 300 Guaranteed Notes due 2043, $750 million, 5.25% ($20 million of discount; $7 million of debt issuance cost) 723 722 Guaranteed Notes due 2044, $1,000 million, 4.875% ($11 million of discount; $9 million of debt issuance cost) 980 980 Other 7 10 Total 7,527 8,502 Less current maturities (5 ) (5 ) Long-term debt $ 7,522 $ 8,497 Fair value hedging adjustments associated with the fair value hedge accounting of our fixed-for-floating interest rate swaps for the applicable periods are as follows: Gains (Losses) Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt Inception Year Three Months Ended March 31, December 31, Millions of dollars 2019 2018 2019 2018 Senior Notes due 2019, 5.0% 2014 $ (11 ) $ (1 ) $ — $ 11 Senior Notes due 2021, 6.0% 2016 (7 ) 14 13 20 Guaranteed Notes due 2027, 3.5% 2017 (22 ) 31 (1 ) 21 Guaranteed Notes due 2022, 1.875% 2018 — — (1 ) (1 ) Total $ (40 ) $ 44 $ 11 $ 51 The cumulative fair value hedging adjustments remaining at December 31, 2018 associated with our Senior Notes due 2019 included $7 million for hedges that were discontinued. Fair value adjustments are recognized in Interest expense in the Consolidated Statements of Income. Short-term loans, notes, and other short-term debt consisted of the following: Millions of dollars March 31, December 31, $2,000 million Term Loan $ 2,000 $ — $2,500 million Senior Revolving Credit Facility — — $900 million U.S. Receivables Facility — — Commercial paper 251 809 Precious metal financings 123 71 Other 3 5 Total short-term debt $ 2,377 $ 885 Long-Term Debt Three-Year Term Loan due 2022 —In March 2019 , LYB Americas Finance Company LLC, a wholly owned subsidiary of LyondellBasell Industries N.V., entered into a three-year $4,000 million senior unsecured delayed draw term loan credit facility that matures in March 2022. Borrowings under the credit agreement may be made on up to six occasions by December 31, 2019. Proceeds under this credit agreement, which is fully and unconditionally guaranteed by LyondellBasell Industries. N.V., may be used for general corporate purposes. Borrowings under the credit agreement bear interest at either a base rate or LIBOR rate, as defined, plus in each case, an applicable margin determined by reference to LyondellBasell Industries N.V.’s current credit ratings. The credit agreement contains customary representations and warranties and contains certain restrictive covenants regarding, among other things, secured indebtedness, subsidiary indebtedness, mergers and sales of assets. In addition, we are required to maintain a leverage ratio at the end of every fiscal quarter of 3.50 to 1.00, or less, for the period covering the most recent four quarters. Senior Notes due 2019 —In February 2019, proceeds from the new senior unsecured term loan credit agreement discussed below were used to redeem the remaining $1,000 million outstanding of our 5% Senior Notes due 2019 at par. In conjunction with the redemption of these notes, we recognized non-cash charges of less than $1 million for unamortized debt issuance costs and $8 million for the write-off of the cumulative fair value hedge accounting adjustment related to the redeemed notes. Short-Term Debt Term Loan due 2020— In February 2019 , LYB Americas Finance Company LLC (“LYB Americas Finance”), a wholly owned subsidiary of LyondellBasell Industries N.V., entered into a 364-day , $2,000 million senior unsecured term loan credit agreement and borrowed the entire amount. The proceeds of this term loan, which is fully and unconditionally guaranteed by LyondellBasell Industries N.V., are intended for general corporate purposes, including the repayment of debt. Borrowings under the credit agreement will bear interest at either a base rate or LIBOR rate, as defined, plus in each case, an applicable margin determined by reference to LyondellBasell Industries N.V.’s current credit ratings. The credit agreement contains customary covenants and warranties, including specified restrictions on indebtedness, including secured and subsidiary indebtedness, and merger and sales of assets. In addition, we are required to maintain a leverage ratio at the end of every fiscal quarter of 3.50 to 1.00, or less, for the period covering the most recent four quarters. Senior Revolving Credit Facility —Our $2,500 million revolving credit facility, which expires in June 2022 , may be used for dollar and euro denominated borrowings, has a $500 million sublimit for dollar and euro denominated letters of credit, a $1,000 million uncommitted accordion feature, and supports our commercial paper program. The aggregate balance of outstanding borrowings, including amounts outstanding under our commercial paper program, and letters of credit under this facility may not exceed $2,500 million at any given time. Borrowings under the facility bear interest at either a base rate or LIBOR rate, plus an applicable margin. Additional fees are incurred for the average daily unused commitments. The facility contains customary covenants and warranties, including specified restrictions on indebtedness and liens. In addition, we are required to maintain a leverage ratio at the end of every fiscal quarter of 3.50 to 1.00, or less, for the period covering the most recent four quarters. Commercial Paper Program —We have a commercial paper program under which we may issue up to $2,500 million of privately placed, unsecured, short-term promissory notes (“commercial paper”). This program is backed by our $2,500 million Senior Revolving Credit Facility. Proceeds from the issuance of commercial paper may be used for general corporate purposes, including dividends and share repurchases. Interest rates on the commercial paper outstanding at March 31, 2019 are based on the terms of the notes and range from 2.63% to 2.69%. U.S. Receivables Facility —Our U.S. accounts receivable facility, which expires in July 2021 , has a purchase limit of $900 million in addition to a $300 million uncommitted accordion feature. This facility provides liquidity through the sale or contribution of trade receivables by certain of our U.S. subsidiaries to a wholly owned, bankruptcy-remote subsidiary on an ongoing basis and without recourse. The bankruptcy-remote subsidiary may then, at its option and subject to a borrowing base of eligible receivables, sell undivided interests in the pool of trade receivables to financial institutions participating in the facility. In the event of liquidation, the bankruptcy-remote subsidiary’s assets will be used to satisfy the claims of its creditors prior to any assets or value in the bankruptcy-remote subsidiary becoming available to us. We are responsible for servicing the receivables. This facility also provides for the issuance of letters of credit up to $200 million . The term of the facility may be extended in accordance with the terms of the agreement. The facility is also subject to customary warranties and covenants, including limits and reserves and the maintenance of specified financial ratios. We are required to maintain a leverage ratio at the end of every fiscal quarter of 3.50 to 1.00, or less, for the period covering the most recent four quarters. Performance obligations under the facility are guaranteed by the parent company. Additional fees are incurred for the average daily unused commitments. At March 31, 2019 , there were no borrowings or letters of credit under the facility. Weighted Average Interest Rate —At March 31, 2019 and December 31, 2018 , our weighted average interest rate on outstanding short-term debt was 3.6% and 3.1% , respectively. Debt Discount and Issuance Costs —For the three months ended March 31, 2019 and 2018 , amortization of debt discounts and debt issuance costs resulted in amortization expense of $1 million and $ 4 million , respectively, which is included in Interest expense in the Consolidated Statements of Income. Other Information — LYB International Finance III, LLC is a direct, 100% owned finance subsidiary of LyondellBasell N.V., as defined in Rule 3-10(b) of Regulation S-X. Any debt securities issued by LYB International Finance III, LLC will be fully and unconditionally guaranteed by LyondellBasell N.V. As of March 31, 2019, we are in compliance with our debt covenants.

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases [Text Block]	8 . Leases Adoption of the New Lease Accounting Guidance— On January 1, 2019, we adopted ASC 842, Leases and related amendments using the modified retrospective method. Upon adoption, we recognized Operating lease assets and Operating lease liabilities of $1,533 million and $1,553 million , respectively. We also reduced Accrued liabilities and Other liabilities by $2 million and $18 million , respectively. The adoption of this new guidance did not have a material impact on our Consolidated Statements of Income or Cash Flows. We elected the practical expedients that permit us not to reassess our prior conclusions about lease identification, lease classification, initial direct costs and whether existing land easements that were not previously accounted for as leases under previous accounting standards are, or contain a lease under the new standard. We also elected the practical expedient to account for lease and associated non-lease components as a single lease component asset for all asset classes with the exception of utilities and pipeline assets within major manufacturing equipment, which do not have a material impact on our Consolidated Financial Statements. Comparative financial information has not been restated and continues to be reported under the accounting standards in effect for those periods. At inception of a contract, we determine if the contract contains a lease. When a lease is identified, we recognize a right-of-use asset and a corresponding lease liability based on the present value of the lease payments over the lease term discounted using our incremental borrowing rate, unless an implicit rate is readily determinable. Lease payments include fixed and variable lease components. Variable components are derived from usage or market-based indices, such as the consumer price index. Options to extend or terminate the lease are reflected in the lease payments and lease term when it is reasonably certain that we will exercise those options. Leases with an initial term of 12 months or less are not recorded on the balance sheet. We recognize lease expense on a straight-line basis over the lease term. Operating Leases— The majority of our leases are operating leases. We lease storage tanks, terminal facilities, land, office facilities, railcars, pipelines, barges, plant equipment and other equipment. As of March 31, 2019, our Operating lease assets were $1,534 million . Operating lease liabilities totaled $1,555 million of which $273 million are current and recorded in Accrued liabilities. These values were derived using a weighted average discount rate of 4.5% . Our operating leases have remaining lease terms ranging from less than 1 year to 30 years and have a weighted-average remaining lease term of 8 years . While extension clauses included in our leases do not materially impact our Operating lease assets or Operating lease liabilities, certain leases include options to extend the lease for up to 20 years . Maturities of operating lease liabilities as of March 31, 2019 are as follows: Millions of dollars Last nine months of 2019 $ 255 2020 295 2021 247 2022 211 2023 183 Thereafter 645 Total lease payments 1,836 Less: Imputed interest (281 ) Present value of lease liabilities $ 1,555 The following table presents the components of operating lease cost for the three months ended March 31, 2019: Millions of dollars Operating lease cost $ 90 Short-term lease cost 40 Variable lease cost 17 Net operating lease cost $ 147 Cash paid for operating lease liabilities totaled $91 million for the three months ended March 31, 2019. Leased assets obtained in exchange for new operating lease liabilities, including all leases recognized upon adoption of the new lease accounting standard, totaled $1,652 million for the three months ended March 31, 2019. As of March 31, 2019 , we have entered into additional operating leases, with an undiscounted value of $544 million , primarily for storage tanks related to our new PO/TBA plant at our Channelview, Texas facility. These leases, which will commence between 2019 and 2022 , have lease terms ranging from 2 to 20 years . Lease Commitments— As of December 31, 2018, the undiscounted aggregate future estimated payments for our operating lease commitments, including those which have not commenced, and those with an initial term of 12 months of less, were as follows: Millions of dollars 2019 $ 365 2020 288 2021 256 2022 236 2023 204 Thereafter 1,126 Total minimum lease payments $ 2,475

Financial Instruments and Fair

Financial Instruments and Fair Value Measurements	3 Months Ended
	Mar. 31, 2019
Financial Instruments and Fair Value [Abstract]
Financial Instruments and Fair Value Measurements [Text Block]	9 . Financial Instruments and Fair Value Measurements We are exposed to market risks, such as changes in commodity pricing, currency exchange rates and interest rates. To manage the volatility related to these exposures, we selectively enter into derivative transactions pursuant to our risk management policies. A summary of our financial instruments, risk management policies, derivative instruments, hedging activities and fair value measurement can be found in Notes 2 and 15 to our Consolidated Financial Statements included in our Annual Report on Form 10-K for the year ended December 31, 2018 . If applicable, updates have been included in the respective sections below. At March 31, 2019 and December 31, 2018 , we had marketable securities classified as cash and cash equivalents of $15 million and $19 million , respectively. Foreign Currency Gain (Loss) —Other income, net, in the Consolidated Statements of Income reflected foreign currency gains of $11 million and $6 million for the three months ended March 31, 2019 and 2018 , respectively. Financial Instruments Measured at Fair Value on a Recurring Basis —The following table summarizes financial instruments outstanding as of March 31, 2019 and December 31, 2018 that are measured at fair value on a recurring basis: March 31, 2019 December 31, 2018 Millions of dollars Notional Amount Fair Value Notional Amount Fair Value Balance Sheet Classification Assets– Derivatives designated as hedges: Commodities $ 618 $ 7 $ 472 $ 12 Prepaid expenses and other current assets Foreign currency — 52 — 27 Prepaid expenses and other current assets Foreign currency 2,000 169 2,000 117 Other assets Interest rates — 26 600 33 Prepaid expenses and other current assets Interest rates 790 3 143 1 Other assets Derivatives not designated as hedges: Commodities 124 2 35 5 Prepaid expenses and other current assets Foreign currency 618 5 599 3 Prepaid expenses and other current assets Non-derivatives: Available-for-sale debt securities 258 259 567 567 Short-term investments Equity securities 161 170 322 325 Short-term investments Total $ 4,569 $ 693 $ 4,738 $ 1,090 Liabilities– Derivatives designated as hedges: Commodities $ — $ — $ 4 $ — Accrued liabilities Foreign currency — 33 — 17 Accrued liabilities Foreign currency 950 58 950 75 Other liabilities Interest rates 1,000 53 1,400 16 Accrued liabilities Interest rates 1,850 41 2,500 45 Other liabilities Derivatives not designated as hedges: Commodities 129 6 63 14 Accrued liabilities Foreign currency 234 — 1,165 7 Accrued liabilities Non-derivatives: Performance share awards — — 29 29 Accrued liabilities Total $ 4,163 $ 191 $ 6,111 $ 203 Commodity derivatives designated as hedges are classified as Level 1. As of March 31, 2019, these commodity derivatives had notional and fair values of $618 million and $7 million , respectively. Our investments in equity securities discussed below are measured at fair value using the net asset value per share, or its equivalent, practical expedient and have not been classified in the fair value hierarchy. All other derivatives and available-for-sale debt securities in the tables above are classified as Level 2. At March 31, 2019 , our outstanding foreign currency and commodity contracts, not designated as hedges, mature from April 2019 to August 2019 and April 2019 to May 2019 , respectively. Financial Instruments Not Measured at Fair Value on a Recurring Basis —The following table presents the carrying value and estimated fair value of our financial instruments that are not measured at fair value on a recurring basis as of March 31, 2019 and December 31, 2018 . Short-term loans receivable, which represent our repurchase agreements, and short-term and long-term debt are recorded at amortized cost in the Consolidated Balance Sheets. The carrying and fair values of short-term and long-term debt exclude finance leases and commercial paper. March 31, 2019 December 31, 2018 Millions of dollars Carrying Value Fair Value Carrying Value Fair Value Non-derivatives: Assets: Short-term loans receivable $ 534 $ 534 $ 544 $ 544 Liabilities: Short-term debt $ 2,126 $ 2,131 $ 71 $ 77 Long-term debt 7,521 7,789 8,492 8,476 Total $ 9,647 $ 9,920 $ 8,563 $ 8,553 All financial instruments in the table above are classified as Level 2 . There were no transfers between Level 1 and Level 2 for any of our financial instruments during the three months ended March 31, 2019 and the year ended December 31, 2018 . Net Investment Hedges— At March 31, 2019 and December 31, 2018 , we had outstanding foreign currency contracts with an aggregate notional value of €617 million ( $650 million ) designated as net investment hedges. We also had outstanding foreign-currency denominated debt designated as a net investment hedge with notional amounts totaling €750 million ( $842 million ) and €750 million ( $858 million ), respectively, as of March 31, 2019 and December 31, 2018 . Cash Flow Hedges— The following table summarizes our cash flow hedges outstanding at March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 Millions of dollars Notional Value Notional Value Expiration Date Foreign currency $ 2,300 $ 2,300 2021 to 2027 Interest rates 1,500 1,500 2020 to 2021 Commodities 618 476 2019 In February 2019 , we entered into forward-starting interest rate swaps with a total notional amount of $1,000 million to mitigate the risk of variability in interest rates for an expected debt issuance by February 2020. These swaps were designated as cash flow hedges and will be terminated upon debt issuance. Additionally, concurrent with the redemption of $1,000 million of our then outstanding 5% senior notes due 2019 , we received $4 million in settlement of $1,000 million of forward-starting interest rate swaps designated as cash flow hedges of forecasted interest payments to begin on or before April 15, 2019. In January and February of 2019, we entered into commodity futures contracts with total notional amounts of $78 million and $97 million to mitigate the risk of variability in feedstock prices and product sales prices, respectively, for the year 2019. In 2019, we paid $4 million in settlement of commodity futures contracts hedging the risk of variability in feedstock prices with a total notional amount of $67 million . Additionally, we received $6 million in settlement of commodity futures contracts hedging the risk of variability in product sales prices with a total notional amount of $83 million . As of March 31, 2019 , on a pre-tax basis, less than $1 million , $4 million , and $3 million are scheduled to be reclassified from Accumulated other comprehensive loss as a decrease to interest expense, increase to revenues and decrease to cost of sales, respectively, over the next twelve months. Fair Value Hedges— In February 2019, concurrent with the redemption of $1,000 million of our then outstanding 5% senior notes due 2019 , we paid $5 million in settlement of $1,000 million of fixed-for-floating interest rate swaps. We had outstanding interest rate contracts with aggregate notional amounts of $2,140 million and $3,143 million at March 31, 2019 and December 31, 2018 , respectively. These fair value hedges have maturities ranging from 2021 to 2027 as of March 31, 2019 . Impact on Earnings and Other Comprehensive Income —The following table summarizes the pre-tax effect of derivative instruments and non-derivative instruments on Other comprehensive income and earnings for the three months ended March 31, 2019 and 2018 : Effect of Financial Instruments Three Months Ended March 31, Gain (Loss) Recognized in AOCI Gain (Loss) Reclassified from AOCI to Income Gain (Loss) Recognized in Income Income Statement Millions of dollars 2019 2018 2019 2018 2019 2018 Classification Derivatives designated as hedges: Commodities $ (50 ) $ — $ (5 ) $ — $ — $ — Sales and other operating revenues Commodities 46 (3 ) 4 4 — — Cost of sales Foreign currency 70 (125 ) (39 ) 62 17 13 Other income, net; Interest expense Interest rates (74 ) 49 (4 ) — (34 ) (44 ) Interest expense Derivatives not designated as hedges: Commodities — — — — 2 1 Sales and other operating revenues Commodities — — — — 3 (4 ) Cost of sales Foreign currency — — — — 19 (19 ) Other income, net Non-derivatives designated as hedges: Long-term debt 16 (25 ) — — — — Other income, net Total $ 8 $ (104 ) $ (44 ) $ 66 $ 7 $ (53 ) The derivative amounts excluded from effectiveness testing for foreign currency contracts designated as net investment hedges recognized in other comprehensive income and interest expense for the three months ended March 31, 2019 were gains of $2 million and $5 million , respectively, and for the three months ended March 31, 2018 were gains of $4 million and $5 million , respectively. The pre-tax effect of the periodic receipt of fixed interest and payment of variable interest associated with our fixed-for-floating interest rate swaps resulted in a $3 million increase in interest expense during the three months ended March 31, 2019 and a $3 million decrease in interest expense during the three months ended March 31, 2018. Investments in Available-for-Sale Debt Securities —The following table summarizes the amortized cost, gross unrealized gains and losses, and fair value of our available-for-sale debt securities that are outstanding as of March 31, 2019 and December 31, 2018 : March 31, 2019 Millions of dollars Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available-for-sale debt securities: Bonds $ 258 $ 1 $ — $ 259 December 31, 2018 Millions of dollars Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available-for-sale debt securities: Bonds $ 567 $ — $ — $ 567 No allowance for credit losses related to our available-for-sale debt securities was recorded for the three months ended March 31, 2019 . No losses related to other-than-temporary impairments of our available-for-sale debt securities were recorded in Accumulated other comprehensive income for the year ended December 31, 2018. As of March 31, 2019 , bonds classified as available-for-sale debt securities had maturities between nine and nineteen months . We received proceeds of $308 million and $335 million in the three months ended March 31, 2019 and 2018 , respectively, from maturities of our available-for-sale debt securities. We had no sales of our available-for-sale debt securities during the three months ended March 31, 2019 and 2018 . The following table summarizes the fair value and unrealized losses related to available-for-sale debt securities that were in a continuous unrealized loss position for less than and greater than twelve months as of March 31, 2019 and December 31, 2018 : March 31, 2019 Less than 12 months Greater than 12 months Millions of dollars Fair Value Unrealized Loss Fair Value Unrealized Loss Available-for-sale debt securities: Bonds $ 83 $ — $ — $ — December 31, 2018 Less than 12 months Greater than 12 months Millions of dollars Fair Value Unrealized Loss Fair Value Unrealized Loss Available-for-sale debt securities: Bonds $ 118 $ (1 ) $ 45 $ — Investments in Equity Securities —At March 31, 2019 and December 31, 2018 , we had investments in equity securities with notional amounts totaling of $161 million and $322 million , respectively. The fair values of these investments were $170 million and $325 million at March 31, 2019 and December 31, 2018 , respectively. The following table summarizes the portion of unrealized gains and losses for the equity securities that are outstanding as of March 31, 2019 and 2018: Three Months Ended Millions of dollars 2019 2018 Net gains (losses) recognized during the period $ 7 $ (1 ) Less: Net gains recognized during the period on securities sold 1 — Unrealized gains (losses) recognized during the period $ 6 $ (1 )

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes [Text Block]	10 . Income Taxes Our effective income tax rate for the three months ended March 31, 2019 was 19.9% compared with 19.8% for the three months ended March 31, 2018 . Our effective income tax rate fluctuates based on, among other factors, changes in statutory tax rates, changes in pretax income in countries with varying statutory tax rates, changes in valuation allowances, changes in foreign exchange gains/losses, changes in the amount of exempt income and changes in unrecognized tax benefits associated with uncertain tax positions. Compared with the three months ended March 31, 2018 , the higher effective tax rate for the three months ended March 31, 2019 was primarily attributable to reduced exempt income, partially offset by changes in pretax income in countries with varying statutory tax rates, changes in foreign exchange gains/losses, and changes in unrecognized tax benefits associated with uncertain tax positions. We operate in multiple jurisdictions throughout the world, and our tax returns are periodically audited or subjected to review by tax authorities. We are currently under examination in a number of tax jurisdictions. As a result, there is an uncertainty in income taxes recognized in our financial statements. Positions challenged by the tax authorities may be settled or appealed by us. Tax benefits totaling $269 million were unrecognized as of March 31, 2019 and December 31, 2018 . It is reasonably possible that, within the next twelve months, due to the settlement of uncertain tax positions with various tax authorities and the expiration of statutes of limitations, unrecognized tax benefits could decrease by up to approximately $105 million . We monitor income tax developments in countries where we conduct business. In 2017 , the U.S. enacted “H.R.1,” also known as the “Tax Cuts and Jobs Act” (the “Tax Act”) materially impacting our Consolidated Financial Statements by, among other things, decreasing the tax rate, and significantly affecting future periods. To determine the full effects of the tax law, we are awaiting the finalization of several proposed U.S. Treasury regulations under the Tax Act that were issued during 2018, as well as additional regulations to be proposed and finalized pursuant to the U.S. Treasury’s expanded regulatory authority under the Tax Act. It is also possible that technical correction legislation concerning the Tax Act could retroactively affect tax liabilities for 2018 .

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies [Text Block]	11 . Commitments and Contingencies Commitments —We have various purchase commitments for materials, supplies and services incidental to the ordinary conduct of business, generally for quantities required for our businesses and at prevailing market prices. These commitments are designed to assure sources of supply and are not expected to be in excess of normal requirements. At March 31, 2019 , capital expenditure commitments were incurred in our normal course of business, including commitments of approximately $681 million primarily related to building our new Hyperzone high-density polyethylene plant in La Porte, Texas and a world-scale PO/TBA plant on the Texas Gulf Coast. Financial Assurance Instruments —We have obtained letters of credit, performance and surety bonds and have issued financial and performance guarantees to support trade payables, potential liabilities and other obligations. Considering the frequency of claims made against the financial instruments we use to support our obligations, and the magnitude of those financial instruments in light of our current financial position, management does not expect that any claims against or draws on these instruments would have a material adverse effect on our Consolidated Financial Statements. We have not experienced any unmanageable difficulty in obtaining the required financial assurance instruments for our current operations. Environmental Remediation —Our accrued liability for future environmental remediation costs at current and former plant sites and other remediation sites totaled $93 million and $90 million as of March 31, 2019 and December 31, 2018 , respectively. At March 31, 2019 , the accrued liabilities for individual sites range from less than $1 million to $16 million . The remediation expenditures are expected to occur over a number of years, and not to be concentrated in any single year. In our opinion, it is reasonably possible that losses in excess of the liabilities recorded may have been incurred. However, we cannot estimate any amount or range of such possible additional losses. New information about sites, new technology or future developments such as involvement in investigations by regulatory agencies, could require us to reassess our potential exposure related to environmental matters. The following table summarizes the activity in our accrued environmental liability included in “Accrued liabilities” and “Other liabilities:” Three Months Ended Millions of dollars 2019 2018 Beginning balance $ 90 $ 102 Additional provisions 7 — Amounts paid (3 ) (2 ) Foreign exchange effects (1 ) 2 Ending balance $ 93 $ 102 Indemnification —We are parties to various indemnification arrangements, including arrangements entered into in connection with acquisitions, divestitures and the formation and dissolution of joint ventures. Pursuant to these arrangements, we provide indemnification to and/or receive indemnification from other parties in connection with liabilities that may arise in connection with the transactions and in connection with activities prior to completion of the transactions. These indemnification arrangements typically include provisions pertaining to third party claims relating to environmental and tax matters and various types of litigation. As of March 31, 2019 , we had not accrued any significant amounts for our indemnification obligations, and we are not aware of other circumstances that would likely lead to significant future indemnification obligations. We cannot determine with certainty the potential amount of future payments under the indemnification arrangements until events arise that would trigger a liability under the arrangements. As part of our technology licensing contracts, we give indemnifications to our licensees for liabilities arising from possible patent infringement claims with respect to certain proprietary licensed technologies. Such indemnifications have a stated maximum amount and generally cover a period of five to ten years.

Stockholders' Equity and Redeem

Stockholders' Equity and Redeemable Non-controlling Interests	3 Months Ended
	Mar. 31, 2019
Stockholders' Equity and Redeemable Non-controlling Interests [Abstract]
Stockholders' Equity and Redeemable Non-controlling Interests Disclosure [Text Block]	12 . Stockholders’ Equity and Redeemable Non-controlling Interests Stockholders’ Equity Dividend Distributions —In March 2019, we paid a cash dividend of $1.00 per share for an aggregate of $372 million to shareholders of record on March 4, 2019 . In February 2019, we paid a cash dividend of $15.00 per share for an aggregate of $2 million related to dividends on A. Schulman Special Stock to shareholders of record as of January 15, 2019 . Share Repurchase Programs —In June 2018 , our shareholders approved a proposal to authorize us to repurchase up to 57,844,016 of our ordinary shares through December 1, 2019 (“ June 2018 Share Repurchase Program ”), which superseded the remaining authorization under our May 2017 Share Repurchase Program. The timing and amount of these repurchases, which are determined based on our evaluation of market conditions and other factors, may be executed from time to time through open market or privately negotiated transactions. The repurchased shares, which are recorded at cost, are classified as Treasury stock and may be retired or used for general corporate purposes, including for various employee benefit and compensation plans. The following table summarizes our share repurchase activity for the periods presented: Three Months Ended March 31, 2019 Millions of dollars, except shares and per share amounts Shares Repurchased Average Purchase Price Total Purchase Price, Including Commissions June 2018 Share Repurchase Program 5,648,900 $ 86.38 $ 488 Three Months Ended March 31, 2018 Millions of dollars, except shares and per share amounts Shares Repurchased Average Purchase Price Total Purchase Price, Including Commissions May 2017 Share Repurchase Program 1,292,480 $ 107.17 $ 138 Due to the timing of settlements, total cash paid for share repurchases for the three months ended March 31, 2019 and 2018 was $512 million and $119 million , respectively. Ordinary Shares —The changes in the outstanding amounts of ordinary shares are as follows: Three Months Ended 2019 2018 Ordinary shares outstanding: Beginning balance 375,696,661 394,512,054 Share-based compensation 235,550 235,671 Employee stock purchase plan 42,792 27,179 Purchase of ordinary shares (5,648,900 ) (1,292,480 ) Ending balance 370,326,103 393,482,424 Treasury Shares— The changes in the amounts of treasury shares held by the Company are as follows: Three Months Ended 2019 2018 Ordinary shares held as treasury shares: Beginning balance 24,513,619 183,928,109 Share-based compensation (235,550 ) (235,671 ) Employee stock purchase plan (42,792 ) (27,179 ) Purchase of ordinary shares 5,648,900 1,292,480 Ending balance 29,884,177 184,957,739 Accumulated Other Comprehensive Income (Loss) —The components of, and after-tax changes in, Accumulated other comprehensive loss as of and for the three months ended March 31, 2019 and 2018 are presented in the following tables: Millions of dollars Financial Derivatives Defined Benefit Pension and Other Postretirement Benefit Plans Foreign Currency Translation Adjustments Total Balance – January 1, 2019 $ (68 ) $ (442 ) $ (853 ) $ (1,363 ) Other comprehensive loss before reclassifications (19 ) — (7 ) (26 ) Tax (expense) benefit before reclassifications 4 — (3 ) 1 Amounts reclassified from accumulated other comprehensive income (loss) (45 ) 7 — (38 ) Tax (expense) benefit 10 (2 ) — 8 Net other comprehensive income (loss) (50 ) 5 (10 ) (55 ) Balance – March 31, 2019 $ (118 ) $ (437 ) $ (863 ) $ (1,418 ) Millions of dollars Financial Derivatives Unrealized Defined Benefit Pension and Other Postretirement Benefit Plans Foreign Currency Translation Adjustments Total Balance – January 1, 2018 $ (120 ) $ 17 $ (421 ) $ (761 ) $ (1,285 ) Adoption of accounting standards (2 ) (17 ) (51 ) — (70 ) Other comprehensive income (loss) before reclassifications (61 ) — — 37 (24 ) Tax benefit before reclassifications 17 — — 3 20 Amounts reclassified from accumulated other comprehensive income (loss) 66 — 8 — 74 Tax expense (15 ) — (1 ) — (16 ) Net other comprehensive income (loss) 7 — 7 40 54 Balance – March 31, 2018 $ (115 ) $ — $ (465 ) $ (721 ) $ (1,301 ) The amounts reclassified out of each component of Accumulated other comprehensive loss are as follows: Three Months Ended Affected Line Item on the Consolidated Statements of Income Millions of dollars 2019 2018 Reclassification adjustments for: Financial derivatives: Foreign currency $ (39 ) $ 62 Other income, net Commodities (6 ) — Sales and other operating revenue Commodities 4 4 Cost of sales Interest rates (4 ) — Interest expense Income tax expense (benefit) (10 ) 15 Provision for income taxes Financial derivatives, net of tax (35 ) 51 Amortization of defined pension items: Actuarial loss 7 8 Other income, net Income tax expense 2 1 Provision for income taxes Defined pension items, net of tax 5 7 Total reclassifications, before tax (38 ) 74 Income tax expense (benefit) (8 ) 16 Provision for income taxes Total reclassifications, after tax $ (30 ) $ 58 Amount included in net income Purchase of non-controlling interest— In February 2019, we increased our interest in our subsidiary La Porte Methanol Company, L.P., from 85% to 100% , for cash consideration of $63 million . Redeemable Non-controlling Interests Our redeemable non-controlling interests relate to 115,374 shares of A. Schulman Special Stock which were outstanding as of March 31, 2019 and December 31, 2018 .

Per Share Data

Per Share Data	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Per Share Data [Text Block]	13 . Per Share Data Basic earnings per share are based upon the weighted average number of shares of common stock outstanding during the periods. Diluted earnings per share includes the effect of certain stock option awards and other equity-based compensation awards. We have unvested restricted stock units that are considered participating securities for earnings per share. Earnings per share data and dividends declared per share of common stock are as follows: Three Months Ended March 31, Millions of dollars 2019 2018 Net income attributable to the Company shareholders $ 817 $ 1,231 Dividends on A. Schulman Special Stock (2 ) — Net income attributable to participating securities (1 ) (1 ) Net income attributable to ordinary shareholders – basic and diluted $ 814 $ 1,230 Millions of shares, except per share amounts Basic weighted average common stock outstanding 372 394 Effect of dilutive securities: PSU awards — 1 Potential dilutive shares 372 395 Earnings per share: Basic $ 2.19 $ 3.12 Diluted $ 2.19 $ 3.11 Participating securities 0.6 0.5 Dividends declared per share of common stock $ 1.00 $ 1.00

Segment and Related Information

Segment and Related Information	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Segment and Related Information [Text Block]	14 . Segment and Related Information In conjunction with our acquisition of A. Schulman in August 2018, polypropylene compounding, Catalloy and polybutene-1, which were previously reflected in our O&P–EAI and O&P–Americas segments, were moved to our Advanced Polymer Solutions segment. All comparable periods presented have been revised to reflect this change. We disclose the results of each of our operating segments in accordance with ASC 280, Segment Reporting . Each of our six operating segments is managed by a senior executive reporting directly to our Chief Executive Officer, the chief operating decision maker. Discrete financial information is available for each of the segments, and our Chief Executive Officer uses the operating results of each of the operating segments for performance evaluation and resource allocation. The activities of each of our segments from which they earn revenues and incur expenses are described below: • Olefins and Polyolefins–Americas (“O&P–Americas”). Our O&P–Americas segment produces and markets olefins and co-products, polyethylene and polypropylene. • Olefins and Polyolefins–Europe, Asia, International (“O&P–EAI”). Our O&P–EAI segment produces and markets olefins and co-products, polyethylene, and polypropylene. • Intermediates and Derivatives (“I&D”). Our I&D segment produces and markets propylene oxide and its derivatives; oxyfuels and related products; and intermediate chemicals such as styrene monomer, acetyls, ethylene oxide and ethylene glycol. • Advanced Polymer Solutions (“APS”) . Our APS segment produces and markets compounding and solutions, such as polypropylene compounds, engineered plastics, masterbatches, engineered composites, colors and powders, and advanced polymers, which includes Catalloy and polybutene-1. • Refining . Our Refining segment refines heavy, high-sulfur crude oils and other crude oils of varied types and sources available on the U.S. Gulf Coast into refined products, including gasoline and distillates. • Technology . Our Technology segment develops and licenses chemical and polyolefin process technologies and manufactures and sells polyolefin catalysts. Our chief operating decision maker uses EBITDA as the primary measure for reviewing our segments’ profitability and therefore, in accordance with ASC 280, Segment Reporting , we have presented EBITDA for all segments. We define EBITDA as earnings before interest, taxes and depreciation and amortization. “Other” includes intersegment eliminations and items that are not directly related or allocated to business operations, such as foreign exchange gains or losses and components of pension and other postretirement benefit costs other than service cost. Sales between segments are made primarily at prices approximating prevailing market prices. Summarized financial information concerning reportable segments is shown in the following table for the periods presented: Three Months Ended March 31, 2019 Millions of dollars O&P– Americas O&P– EAI I&D APS Refining Technology Other Total Sales and other operating revenues: Customers $ 1,393 $ 2,343 $ 1,852 $ 1,338 $ 1,743 $ 109 $ — $ 8,778 Intersegment 718 192 42 1 139 32 (1,124 ) — 2,111 2,535 1,894 1,339 1,882 141 (1,124 ) 8,778 Income from equity investments 11 51 2 — — — — 64 EBITDA 516 296 390 148 (15 ) 83 10 1,428 Three Months Ended March 31, 2018 Millions of dollars O&P– Americas O&P– EAI I&D APS Refining Technology Other Total Sales and other operating revenues: Customers $ 1,787 $ 2,742 $ 2,310 $ 838 $ 2,002 $ 88 $ — $ 9,767 Intersegment 859 218 33 — 255 27 (1,392 ) — 2,646 2,960 2,343 838 2,257 115 (1,392 ) 9,767 Income from equity investments 17 76 3 — — — — 96 EBITDA 756 419 486 123 63 56 10 1,913 Our APS segment results for the first quarter of 2019 included $16 million of integration costs associated with our acquisition of A. Schulman in August 2018. A reconciliation of EBITDA to Income before income taxes is shown in the following table for each of the periods presented: Three Months Ended Millions of dollars 2019 2018 EBITDA: Total segment EBITDA $ 1,418 $ 1,903 Other EBITDA 10 10 Less: Depreciation and amortization expense (322 ) (299 ) Interest expense (92 ) (91 ) Add: Interest income 6 11 Income before income taxes $ 1,020 $ 1,534

Leases (Policies)

Leases (Policies)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases [Policy Text Block]	We elected the practical expedients that permit us not to reassess our prior conclusions about lease identification, lease classification, initial direct costs and whether existing land easements that were not previously accounted for as leases under previous accounting standards are, or contain a lease under the new standard. We also elected the practical expedient to account for lease and associated non-lease components as a single lease component asset for all asset classes with the exception of utilities and pipeline assets within major manufacturing equipment, which do not have a material impact on our Consolidated Financial Statements. Comparative financial information has not been restated and continues to be reported under the accounting standards in effect for those periods. At inception of a contract, we determine if the contract contains a lease. When a lease is identified, we recognize a right-of-use asset and a corresponding lease liability based on the present value of the lease payments over the lease term discounted using our incremental borrowing rate, unless an implicit rate is readily determinable. Lease payments include fixed and variable lease components. Variable components are derived from usage or market-based indices, such as the consumer price index. Options to extend or terminate the lease are reflected in the lease payments and lease term when it is reasonably certain that we will exercise those options. Leases with an initial term of 12 months or less are not recorded on the balance sheet. We recognize lease expense on a straight-line basis over the lease term.

Accounting and Reporting Chan_2

Accounting and Reporting Changes (Tables)	3 Months Ended
	Mar. 31, 2019
Accounting Changes and Error Corrections [Abstract]
Schedule of accounting and reporting changes [Table Text Block]	Standard Description Period of Adoption Effect on the Consolidated Financial Statements Recently Adopted Guidance ASU 2016-02, Leases (Topic 842) (including subsequent amendments: ASU 2018-01, Land Easement Practical Expedient for Transition to Topic 842, ASU 2018-10, Codification Improvements to Topic 842 , ASU 2018-11, Leases, Targeted Improvements , and ASU 2019-01, Leases Codification Improvements) The new guidance establishes a right-of-use model that requires a lessee to recognize a right-of-use asset and lease liability on the balance sheet for all leases with a term greater than 12 months. Leases are classified as finance or operating, with classification affecting the timing and classification of expense recognition. This guidance also enhances disclosure requirements and is effective for public entities for annual periods beginning after December 15, 2018. First quarter of 2019 See Note 8 for disclosures related to the adoption of this guidance. ASU 2018-09, Codification Improvements This guidance makes minor improvements in various subtopics. Many of the amendments within the ASU do not require transition and are effective upon issuance. However, some amendments are not effective until fiscal years beginning after December 15, 2018. First quarter of 2019 The adoption of the new guidance did not have a material impact on our Consolidated Financial Statements. Standard Description Period of Adoption Effect on the Consolidated Financial Statements ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments This amendment requires financial assets measured at amortized cost basis to be presented at the net amount expected to be collected, resulting in the use of a current expected credit loss (“CECL”) model when measuring an impairment of financial instruments. Credit losses related to available-for-sale securities should be recorded in the consolidated income statement through an allowance for credit losses. Estimated credit losses utilizing the CECL model are based on historical experience, current conditions and forecasts that affect collectability. This ASU also modifies the impairment model for available-for-sale debt securities by eliminating the concept of “other than temporary” as well as providing a simplified accounting model for purchased financial assets with credit deterioration since their origination. The guidance will be effective for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. First quarter of 2019 (early adopted) The adoption of the new guidance did not have a material impact on our Consolidated Financial Statements. Accounting Guidance Issued But Not Adopted as of March 31, 2019 ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Change to the Disclosure Requirements for Fair Value Measurement This guidance eliminates, adds and modifies certain disclosure requirements for fair value measurements as part of its disclosure framework project. It removes transfer disclosures between Level 1 and Level 2 of the fair value hierarchy, and adds disclosures for the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. The guidance will be effective for public entities for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. January 1, 2020 We are currently assessing the impact of this guidance on our Consolidated Financial Statements. ASU 2018-14, Compensation - Retirement Benefits - Defined Benefit Plans - General (Subtopic 715-20): Disclosure Framework - Changes to the Disclosure Requirements for Defined Benefit Plans This guidance changes disclosure requirements for employers that sponsor defined benefit pension and/or other postretirement benefit plans. It eliminates the requirement of certain disclosures that are no longer considered cost beneficial; however, it adds more pertinent disclosures. The guidance will be effective for public entities for annual periods ending after December 15, 2020. Early adoption is permitted. January 1, 2021 We are currently assessing the impact of this guidance on our Consolidated Financial Statements. Standard Description Period of Adoption Effect on the Consolidated Financial Statements ASU 2018-15, Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract This guidance requires a customer in a hosted, cloud computing arrangement that is a service contract to follow the internal-use software guidance to determine which implementation costs to capitalize as assets or expense as incurred. Capitalized costs are amortized over the term of the hosting arrangement when the recognized asset is ready for its intended use. The guidance will be effective for public entities for annual and interim periods beginning after December 15, 2019. Early adoption is permitted. January 1, 2020 We are currently assessing the impact of this guidance on our Consolidated Financial Statements.

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Disaggregation of revenue [Table Text Block]	Disaggregation of Revenues— The following table presents our revenues disaggregated by key products for the three months ended March 31, 2019 and 2018 , respectively: Three Months Ended March 31, Millions of dollars 2019 2018 Sales and other operating revenues: Olefins and co-products $ 748 $ 1,020 Polyethylene 1,666 1,978 Polypropylene 1,315 1,520 PO and derivatives 559 649 Oxyfuels and related products 664 795 Intermediate chemicals 609 848 Compounding and solutions 1,140 609 Advanced polymers 198 228 Refined products 1,743 2,002 Other 136 118 Total $ 8,778 $ 9,767 The following table presents our revenues disaggregated by geography, based upon the location of the customer, for the three months ended March 31, 2019 and 2018 , respectively: Three Months Ended March 31, Millions of dollars 2019 2018 Sales and other operating revenues: United States $ 3,893 $ 4,653 Germany 731 821 Mexico 528 478 Italy 387 394 France 362 350 Japan 203 301 China 298 282 The Netherlands 252 276 Other 2,124 2,212 Total $ 8,778 $ 9,767

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 31, 2019
Inventory Disclosure [Abstract]
Schedule of inventory, current [Table Text Block]	Inventories consisted of the following components: Millions of dollars March 31, December 31, Finished goods $ 3,010 $ 3,066 Work-in-process 215 138 Raw materials and supplies 1,271 1,311 Total inventories $ 4,496 $ 4,515

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Schedule of long-term debt [Table Text Block]	Long-term loans, notes and other long-term debt, net of unamortized discount and debt issuance cost, consisted of the following: Millions of dollars March 31, December 31, Senior Notes due 2019, $1,000 million, 5.0% $ — $ 988 Senior Notes due 2021, $1,000 million, 6.0% ($5 million of debt issuance cost) 982 975 Senior Notes due 2024, $1,000 million, 5.75% ($6 million of debt issuance cost) 994 993 Senior Notes due 2055, $1,000 million, 4.625% ($16 million of discount; $11 million of debt issuance cost) 973 973 Term Loan due 2022, $4,000 million — — Guaranteed Notes due 2022, €750 million, 1.875% ($2 million of discount; $2 million of debt issuance cost) 840 855 Guaranteed Notes due 2023, $750 million, 4.0% ($5 million of discount; $3 million of debt issuance cost) 742 742 Guaranteed Notes due 2027, $1,000 million, 3.5% ($8 million of discount; $7 million of debt issuance cost) 986 964 Guaranteed Notes due 2027, $300 million, 8.1% 300 300 Guaranteed Notes due 2043, $750 million, 5.25% ($20 million of discount; $7 million of debt issuance cost) 723 722 Guaranteed Notes due 2044, $1,000 million, 4.875% ($11 million of discount; $9 million of debt issuance cost) 980 980 Other 7 10 Total 7,527 8,502 Less current maturities (5 ) (5 ) Long-term debt $ 7,522 $ 8,497 Fair value hedging adjustments associated with the fair value hedge accounting of our fixed-for-floating interest rate swaps for the applicable periods are as follows: Gains (Losses) Cumulative Fair Value Hedging Adjustments Included in Carrying Amount of Debt Inception Year Three Months Ended March 31, December 31, Millions of dollars 2019 2018 2019 2018 Senior Notes due 2019, 5.0% 2014 $ (11 ) $ (1 ) $ — $ 11 Senior Notes due 2021, 6.0% 2016 (7 ) 14 13 20 Guaranteed Notes due 2027, 3.5% 2017 (22 ) 31 (1 ) 21 Guaranteed Notes due 2022, 1.875% 2018 — — (1 ) (1 ) Total $ (40 ) $ 44 $ 11 $ 51 The cumulative fair value hedging adjustments remaining at December 31, 2018 associated with our Senior Notes due 2019 included $7 million for hedges that were discontinued. Fair value adjustments are recognized in Interest expense in the Consolidated Statements of Income.
Schedule of short-term debt [Table Text Block]	Short-term loans, notes, and other short-term debt consisted of the following: Millions of dollars March 31, December 31, $2,000 million Term Loan $ 2,000 $ — $2,500 million Senior Revolving Credit Facility — — $900 million U.S. Receivables Facility — — Commercial paper 251 809 Precious metal financings 123 71 Other 3 5 Total short-term debt $ 2,377 $ 885

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Maturities of operating lease liabilities [Table Text Block]	Maturities of operating lease liabilities as of March 31, 2019 are as follows: Millions of dollars Last nine months of 2019 $ 255 2020 295 2021 247 2022 211 2023 183 Thereafter 645 Total lease payments 1,836 Less: Imputed interest (281 ) Present value of lease liabilities $ 1,555
Schedule of operating lease cost [Table Text Block]	The following table presents the components of operating lease cost for the three months ended March 31, 2019: Millions of dollars Operating lease cost $ 90 Short-term lease cost 40 Variable lease cost 17 Net operating lease cost $ 147
Schedule of future estimated minimum rental payments for operating leases [Table Text Block]	Lease Commitments— As of December 31, 2018, the undiscounted aggregate future estimated payments for our operating lease commitments, including those which have not commenced, and those with an initial term of 12 months of less, were as follows: Millions of dollars 2019 $ 365 2020 288 2021 256 2022 236 2023 204 Thereafter 1,126 Total minimum lease payments $ 2,475

Financial Instruments and Fai_2

Financial Instruments and Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2019
Financial Instruments and Fair Value [Abstract]
Summary of fair value of outstanding financial instruments [Table Text Block]	Financial Instruments Measured at Fair Value on a Recurring Basis —The following table summarizes financial instruments outstanding as of March 31, 2019 and December 31, 2018 that are measured at fair value on a recurring basis: March 31, 2019 December 31, 2018 Millions of dollars Notional Amount Fair Value Notional Amount Fair Value Balance Sheet Classification Assets– Derivatives designated as hedges: Commodities $ 618 $ 7 $ 472 $ 12 Prepaid expenses and other current assets Foreign currency — 52 — 27 Prepaid expenses and other current assets Foreign currency 2,000 169 2,000 117 Other assets Interest rates — 26 600 33 Prepaid expenses and other current assets Interest rates 790 3 143 1 Other assets Derivatives not designated as hedges: Commodities 124 2 35 5 Prepaid expenses and other current assets Foreign currency 618 5 599 3 Prepaid expenses and other current assets Non-derivatives: Available-for-sale debt securities 258 259 567 567 Short-term investments Equity securities 161 170 322 325 Short-term investments Total $ 4,569 $ 693 $ 4,738 $ 1,090 Liabilities– Derivatives designated as hedges: Commodities $ — $ — $ 4 $ — Accrued liabilities Foreign currency — 33 — 17 Accrued liabilities Foreign currency 950 58 950 75 Other liabilities Interest rates 1,000 53 1,400 16 Accrued liabilities Interest rates 1,850 41 2,500 45 Other liabilities Derivatives not designated as hedges: Commodities 129 6 63 14 Accrued liabilities Foreign currency 234 — 1,165 7 Accrued liabilities Non-derivatives: Performance share awards — — 29 29 Accrued liabilities Total $ 4,163 $ 191 $ 6,111 $ 203 Commodity derivatives designated as hedges are classified as Level 1. As of March 31, 2019, these commodity derivatives had notional and fair values of $618 million and $7 million , respectively. Our investments in equity securities discussed below are measured at fair value using the net asset value per share, or its equivalent, practical expedient and have not been classified in the fair value hierarchy. All other derivatives and available-for-sale debt securities in the tables above are classified as Level 2. At March 31, 2019 , our outstanding foreign currency and commodity contracts, not designated as hedges, mature from April 2019 to August 2019 and April 2019 to May 2019 , respectively.
Schedule of the carrying value and estimated fair value of non-derivative financial instruments [Table Text Block]	Financial Instruments Not Measured at Fair Value on a Recurring Basis —The following table presents the carrying value and estimated fair value of our financial instruments that are not measured at fair value on a recurring basis as of March 31, 2019 and December 31, 2018 . Short-term loans receivable, which represent our repurchase agreements, and short-term and long-term debt are recorded at amortized cost in the Consolidated Balance Sheets. The carrying and fair values of short-term and long-term debt exclude finance leases and commercial paper. March 31, 2019 December 31, 2018 Millions of dollars Carrying Value Fair Value Carrying Value Fair Value Non-derivatives: Assets: Short-term loans receivable $ 534 $ 534 $ 544 $ 544 Liabilities: Short-term debt $ 2,126 $ 2,131 $ 71 $ 77 Long-term debt 7,521 7,789 8,492 8,476 Total $ 9,647 $ 9,920 $ 8,563 $ 8,553 All financial instruments in the table above are classified as Level 2 . There were no transfers between Level 1 and Level 2 for any of our financial instruments during the three months ended March 31, 2019 and the year ended December 31, 2018 .
Summary of cash flow hedges [Table Text Block]	Cash Flow Hedges— The following table summarizes our cash flow hedges outstanding at March 31, 2019 and December 31, 2018 : March 31, 2019 December 31, 2018 Millions of dollars Notional Value Notional Value Expiration Date Foreign currency $ 2,300 $ 2,300 2021 to 2027 Interest rates 1,500 1,500 2020 to 2021 Commodities 618 476 2019 In February 2019 , we entered into forward-starting interest rate swaps with a total notional amount of $1,000 million to mitigate the risk of variability in interest rates for an expected debt issuance by February 2020. These swaps were designated as cash flow hedges and will be terminated upon debt issuance. Additionally, concurrent with the redemption of $1,000 million of our then outstanding 5% senior notes due 2019 , we received $4 million in settlement of $1,000 million of forward-starting interest rate swaps designated as cash flow hedges of forecasted interest payments to begin on or before April 15, 2019. In January and February of 2019, we entered into commodity futures contracts with total notional amounts of $78 million and $97 million to mitigate the risk of variability in feedstock prices and product sales prices, respectively, for the year 2019. In 2019, we paid $4 million in settlement of commodity futures contracts hedging the risk of variability in feedstock prices with a total notional amount of $67 million . Additionally, we received $6 million in settlement of commodity futures contracts hedging the risk of variability in product sales prices with a total notional amount of $83 million .
Summary of the impact of financial instruments on earnings and other comprehensive income [Table Text Block]	Impact on Earnings and Other Comprehensive Income —The following table summarizes the pre-tax effect of derivative instruments and non-derivative instruments on Other comprehensive income and earnings for the three months ended March 31, 2019 and 2018 : Effect of Financial Instruments Three Months Ended March 31, Gain (Loss) Recognized in AOCI Gain (Loss) Reclassified from AOCI to Income Gain (Loss) Recognized in Income Income Statement Millions of dollars 2019 2018 2019 2018 2019 2018 Classification Derivatives designated as hedges: Commodities $ (50 ) $ — $ (5 ) $ — $ — $ — Sales and other operating revenues Commodities 46 (3 ) 4 4 — — Cost of sales Foreign currency 70 (125 ) (39 ) 62 17 13 Other income, net; Interest expense Interest rates (74 ) 49 (4 ) — (34 ) (44 ) Interest expense Derivatives not designated as hedges: Commodities — — — — 2 1 Sales and other operating revenues Commodities — — — — 3 (4 ) Cost of sales Foreign currency — — — — 19 (19 ) Other income, net Non-derivatives designated as hedges: Long-term debt 16 (25 ) — — — — Other income, net Total $ 8 $ (104 ) $ (44 ) $ 66 $ 7 $ (53 ) The derivative amounts excluded from effectiveness testing for foreign currency contracts designated as net investment hedges recognized in other comprehensive income and interest expense for the three months ended March 31, 2019 were gains of $2 million and $5 million , respectively, and for the three months ended March 31, 2018 were gains of $4 million and $5 million , respectively.
Schedule of available-for-sale debt securities reconciliation [Table Text Block]	Investments in Available-for-Sale Debt Securities —The following table summarizes the amortized cost, gross unrealized gains and losses, and fair value of our available-for-sale debt securities that are outstanding as of March 31, 2019 and December 31, 2018 : March 31, 2019 Millions of dollars Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available-for-sale debt securities: Bonds $ 258 $ 1 $ — $ 259 December 31, 2018 Millions of dollars Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available-for-sale debt securities: Bonds $ 567 $ — $ — $ 567 No allowance for credit losses related to our available-for-sale debt securities was recorded for the three months ended March 31, 2019 . No losses related to other-than-temporary impairments of our available-for-sale debt securities were recorded in Accumulated other comprehensive income for the year ended December 31, 2018. As of March 31, 2019 , bonds classified as available-for-sale debt securities had maturities between nine and nineteen months .
Summary of available-for-sale debt securities, continuous unrealized loss position, fair value [Table Text Block]	The following table summarizes the fair value and unrealized losses related to available-for-sale debt securities that were in a continuous unrealized loss position for less than and greater than twelve months as of March 31, 2019 and December 31, 2018 : March 31, 2019 Less than 12 months Greater than 12 months Millions of dollars Fair Value Unrealized Loss Fair Value Unrealized Loss Available-for-sale debt securities: Bonds $ 83 $ — $ — $ — December 31, 2018 Less than 12 months Greater than 12 months Millions of dollars Fair Value Unrealized Loss Fair Value Unrealized Loss Available-for-sale debt securities: Bonds $ 118 $ (1 ) $ 45 $ —
Summary of the portion of unrealized gains and losses for equity securities outstanding [Table Text Block]	The following table summarizes the portion of unrealized gains and losses for the equity securities that are outstanding as of March 31, 2019 and 2018: Three Months Ended Millions of dollars 2019 2018 Net gains (losses) recognized during the period $ 7 $ (1 ) Less: Net gains recognized during the period on securities sold 1 — Unrealized gains (losses) recognized during the period $ 6 $ (1 )

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Schedule of environmental loss contingencies [Table Text Block]	The following table summarizes the activity in our accrued environmental liability included in “Accrued liabilities” and “Other liabilities:” Three Months Ended Millions of dollars 2019 2018 Beginning balance $ 90 $ 102 Additional provisions 7 — Amounts paid (3 ) (2 ) Foreign exchange effects (1 ) 2 Ending balance $ 93 $ 102

Stockholders' Equity and Rede_2

Stockholders' Equity and Redeemable Non-controlling Interests, Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2019
Stockholders' Equity and Redeemable Non-controlling Interests [Abstract]
Schedule of share repurchase programs [Table Text Block]	The following table summarizes our share repurchase activity for the periods presented: Three Months Ended March 31, 2019 Millions of dollars, except shares and per share amounts Shares Repurchased Average Purchase Price Total Purchase Price, Including Commissions June 2018 Share Repurchase Program 5,648,900 $ 86.38 $ 488 Three Months Ended March 31, 2018 Millions of dollars, except shares and per share amounts Shares Repurchased Average Purchase Price Total Purchase Price, Including Commissions May 2017 Share Repurchase Program 1,292,480 $ 107.17 $ 138 Due to the timing of settlements, total cash paid for share repurchases for the three months ended March 31, 2019 and 2018 was $512 million and $119 million , respectively.
Schedule of changes in ordinary and treasury shares outstanding during the period [Table Text Block]	Ordinary Shares —The changes in the outstanding amounts of ordinary shares are as follows: Three Months Ended 2019 2018 Ordinary shares outstanding: Beginning balance 375,696,661 394,512,054 Share-based compensation 235,550 235,671 Employee stock purchase plan 42,792 27,179 Purchase of ordinary shares (5,648,900 ) (1,292,480 ) Ending balance 370,326,103 393,482,424 Treasury Shares— The changes in the amounts of treasury shares held by the Company are as follows: Three Months Ended 2019 2018 Ordinary shares held as treasury shares: Beginning balance 24,513,619 183,928,109 Share-based compensation (235,550 ) (235,671 ) Employee stock purchase plan (42,792 ) (27,179 ) Purchase of ordinary shares 5,648,900 1,292,480 Ending balance 29,884,177 184,957,739
Schedule of accumulated other comprehensive income (loss) [Table Text Block]	Accumulated Other Comprehensive Income (Loss) —The components of, and after-tax changes in, Accumulated other comprehensive loss as of and for the three months ended March 31, 2019 and 2018 are presented in the following tables: Millions of dollars Financial Derivatives Defined Benefit Pension and Other Postretirement Benefit Plans Foreign Currency Translation Adjustments Total Balance – January 1, 2019 $ (68 ) $ (442 ) $ (853 ) $ (1,363 ) Other comprehensive loss before reclassifications (19 ) — (7 ) (26 ) Tax (expense) benefit before reclassifications 4 — (3 ) 1 Amounts reclassified from accumulated other comprehensive income (loss) (45 ) 7 — (38 ) Tax (expense) benefit 10 (2 ) — 8 Net other comprehensive income (loss) (50 ) 5 (10 ) (55 ) Balance – March 31, 2019 $ (118 ) $ (437 ) $ (863 ) $ (1,418 ) Millions of dollars Financial Derivatives Unrealized Defined Benefit Pension and Other Postretirement Benefit Plans Foreign Currency Translation Adjustments Total Balance – January 1, 2018 $ (120 ) $ 17 $ (421 ) $ (761 ) $ (1,285 ) Adoption of accounting standards (2 ) (17 ) (51 ) — (70 ) Other comprehensive income (loss) before reclassifications (61 ) — — 37 (24 ) Tax benefit before reclassifications 17 — — 3 20 Amounts reclassified from accumulated other comprehensive income (loss) 66 — 8 — 74 Tax expense (15 ) — (1 ) — (16 ) Net other comprehensive income (loss) 7 — 7 40 54 Balance – March 31, 2018 $ (115 ) $ — $ (465 ) $ (721 ) $ (1,301 )
Reclassification out of accumulated other comprehensive income (loss) [Table Text Block]	The amounts reclassified out of each component of Accumulated other comprehensive loss are as follows: Three Months Ended Affected Line Item on the Consolidated Statements of Income Millions of dollars 2019 2018 Reclassification adjustments for: Financial derivatives: Foreign currency $ (39 ) $ 62 Other income, net Commodities (6 ) — Sales and other operating revenue Commodities 4 4 Cost of sales Interest rates (4 ) — Interest expense Income tax expense (benefit) (10 ) 15 Provision for income taxes Financial derivatives, net of tax (35 ) 51 Amortization of defined pension items: Actuarial loss 7 8 Other income, net Income tax expense 2 1 Provision for income taxes Defined pension items, net of tax 5 7 Total reclassifications, before tax (38 ) 74 Income tax expense (benefit) (8 ) 16 Provision for income taxes Total reclassifications, after tax $ (30 ) $ 58 Amount included in net income

Per Share Data (Tables)

Per Share Data (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Schedule of earnings per share, basic and diluted [Table Text Block]	Earnings per share data and dividends declared per share of common stock are as follows: Three Months Ended March 31, Millions of dollars 2019 2018 Net income attributable to the Company shareholders $ 817 $ 1,231 Dividends on A. Schulman Special Stock (2 ) — Net income attributable to participating securities (1 ) (1 ) Net income attributable to ordinary shareholders – basic and diluted $ 814 $ 1,230 Millions of shares, except per share amounts Basic weighted average common stock outstanding 372 394 Effect of dilutive securities: PSU awards — 1 Potential dilutive shares 372 395 Earnings per share: Basic $ 2.19 $ 3.12 Diluted $ 2.19 $ 3.11 Participating securities 0.6 0.5 Dividends declared per share of common stock $ 1.00 $ 1.00

Segment and Related Informati_2

Segment and Related Information (Tables)	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Summarized financial information concerning reportable segments is shown in the following table for the periods presented: Three Months Ended March 31, 2019 Millions of dollars O&P– Americas O&P– EAI I&D APS Refining Technology Other Total Sales and other operating revenues: Customers $ 1,393 $ 2,343 $ 1,852 $ 1,338 $ 1,743 $ 109 $ — $ 8,778 Intersegment 718 192 42 1 139 32 (1,124 ) — 2,111 2,535 1,894 1,339 1,882 141 (1,124 ) 8,778 Income from equity investments 11 51 2 — — — — 64 EBITDA 516 296 390 148 (15 ) 83 10 1,428 Three Months Ended March 31, 2018 Millions of dollars O&P– Americas O&P– EAI I&D APS Refining Technology Other Total Sales and other operating revenues: Customers $ 1,787 $ 2,742 $ 2,310 $ 838 $ 2,002 $ 88 $ — $ 9,767 Intersegment 859 218 33 — 255 27 (1,392 ) — 2,646 2,960 2,343 838 2,257 115 (1,392 ) 9,767 Income from equity investments 17 76 3 — — — — 96 EBITDA 756 419 486 123 63 56 10 1,913
Reconciliation of EBITDA to income (loss) from continuing operations before income taxes [Table Text Block]	A reconciliation of EBITDA to Income before income taxes is shown in the following table for each of the periods presented: Three Months Ended Millions of dollars 2019 2018 EBITDA: Total segment EBITDA $ 1,418 $ 1,903 Other EBITDA 10 10 Less: Depreciation and amortization expense (322 ) (299 ) Interest expense (92 ) (91 ) Add: Interest income 6 11 Income before income taxes $ 1,020 $ 1,534

Business Combination, Summary o

Business Combination, Summary of consideration transferred (Details) $ in Millions	Aug. 21, 2018USD ($)
Adjustment disclosure for business combination completed in previous reporting period [Abstract]
Business acquisition, effective date of acquisition	Aug. 21, 2018
Business acquisition, name of acquired entity	A. Schulman Inc.
Aggregate purchase price	$ 1,940

Revenues (Details)

Revenues (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Contract with customer, liability [Abstract]
Contract with customer, liability	$ 195	$ 138
Revenue recognized included in beginning contract liability	Revenue recognized in the reporting period, included in the contract liability balance at the beginning of the period, was immaterial.

Revenues, Key product revenues

Revenues, Key product revenues (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of revenue [Abstract]
Sales and other operating revenues	$ 8,778	$ 9,767
Olefins & co-products [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	748	1,020
Polyethylene [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	1,666	1,978
Polypropylene [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	1,315	1,520
PO & derivatives [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	559	649
Oxyfuels and related products [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	664	795
Intermediate chemicals [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	609	848
Compounding and solutions [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	1,140	609
Advanced polymers [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	198	228
Refined products [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	1,743	2,002
Other [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	$ 136	$ 118

Revenues, Geographic location (

Revenues, Geographic location (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Disaggregation of revenue [Abstract]
Sales and other operating revenues	$ 8,778	$ 9,767
United States [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	3,893	4,653
Germany [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	731	821
Mexico [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	528	478
Italy [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	387	394
France [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	362	350
Japan [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	203	301
China [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	298	282
The Netherlands [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	252	276
Other [Member]
Disaggregation of revenue [Abstract]
Sales and other operating revenues	$ 2,124	$ 2,212

Accounts Receivable (Details)

Accounts Receivable (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Receivables [Abstract]
Allowance for doubtful accounts receivable	$ 15	$ 16

Inventories (Details)

Inventories (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Inventory, finished goods, work-in-process, and raw materials and supplies [Abstract]
Finished goods	$ 3,010	$ 3,066
Work-in-process	215	138
Raw materials and supplies	1,271	1,311
Total inventories	$ 4,496	$ 4,515

Debt, Long-term debt (Details)

Debt, Long-term debt (Details) € in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)	Mar. 31, 2019EUR (€)	Dec. 31, 2018USD ($)
Long-term debt [Line Items]
Long-term debt	$ 7,527		$ 8,502
Current maturities of long-term debt	(5)		(5)
Long-term debt, non-current portion	$ 7,522		8,497
Senior Notes due 2019, $1,000 million, 5.0%
Long-term debt [Line Items]
Maturity year	2019
Face amount	$ 1,000
Stated interest rate (in hundredths)	5.00%	5.00%
Long-term debt	$ 0		988
Senior Notes due 2021, $1,000 million, 6.0% ($5 million of debt issuance cost)
Long-term debt [Line Items]
Maturity year	2021
Face amount	$ 1,000
Stated interest rate (in hundredths)	6.00%	6.00%
Long-term debt	$ 982		975
Senior Notes due 2024, $1,000 million, 5.75% ($6 million of debt issuance cost)
Long-term debt [Line Items]
Maturity year	2024
Face amount	$ 1,000
Stated interest rate (in hundredths)	5.75%	5.75%
Long-term debt	$ 994		993
Senior Notes due 2055, $1,000 million, 4.625% ($16 million of discount; $11 million of debt issuance cost)
Long-term debt [Line Items]
Maturity year	2055
Face amount	$ 1,000
Stated interest rate (in hundredths)	4.625%	4.625%
Long-term debt	$ 973		973
Term Loan due 2022, $4,000 million
Long-term debt [Line Items]
Maturity year	2022
Maximum borrowing capacity	$ 4,000
Long-term debt	$ 0
Guaranteed Notes due 2022, €750 million, 1.875% ($2 million of discount; $2 million of debt issuance cost)
Long-term debt [Line Items]
Maturity year	2022
Face amount | €		€ 750
Stated interest rate (in hundredths)	1.875%	1.875%
Long-term debt	$ 840		855
Guaranteed Notes due 2023, $750 million, 4.0% ($5 million of discount; $3 million of debt issuance cost)
Long-term debt [Line Items]
Maturity year	2023
Face amount	$ 750
Stated interest rate (in hundredths)	4.00%	4.00%
Long-term debt	$ 742		742
Guaranteed Notes due 2027, $1,000 million, 3.5% ($8 million of discount; $7 million of debt issuance cost)
Long-term debt [Line Items]
Maturity year	2027
Face amount	$ 1,000
Stated interest rate (in hundredths)	3.50%	3.50%
Long-term debt	$ 986		964
Guaranteed Notes due 2027, $300 million, 8.1%
Long-term debt [Line Items]
Maturity year	2027
Face amount	$ 300
Stated interest rate (in hundredths)	8.10%	8.10%
Long-term debt	$ 300		300
Guaranteed Notes due 2043, $750 million, 5.25% ($20 million of discount; $7 million of debt issuance cost)
Long-term debt [Line Items]
Maturity year	2043
Face amount	$ 750
Stated interest rate (in hundredths)	5.25%	5.25%
Long-term debt	$ 723		722
Guaranteed Notes due 2044, $1,000 million, 4.875% ($11 million of discount; $9 million of debt issuance cost)
Long-term debt [Line Items]
Maturity year	2044
Face amount	$ 1,000
Stated interest rate (in hundredths)	4.875%	4.875%
Long-term debt	$ 980		980
Other long-term debt [Member]
Long-term debt [Line Items]
Long-term debt	$ 7		$ 10

Debt, Description of fair value

Debt, Description of fair value adjustments for senior and guaranteed notes (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended	15 Months Ended	24 Months Ended	27 Months Ended	36 Months Ended	39 Months Ended	60 Months Ended	63 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Debt Instrument [Line Items]
Gain (loss) on fair value adjustments of the hedged item related to interest rate swaps	$ (40)	$ 44							$ 51	$ 11
Senior Notes due 2019, $1,000 million, 5.0% [Member]
Debt Instrument [Line Items]
Maturity year	2019
Stated interest rate (in hundredths)	5.00%			5.00%		5.00%		5.00%		5.00%
Inception year	2014
Gain (loss) on fair value adjustments of the hedged item related to interest rate swaps	$ (11)	(1)							11	$ 0
Cumulative fair value hedging adjustment remaining for discontinued hedges			$ 7		$ 7		$ 7		$ 7
Senior Notes due 2021, $1,000 million, 6.0% [Member]
Debt Instrument [Line Items]
Maturity year	2021
Stated interest rate (in hundredths)	6.00%			6.00%		6.00%		6.00%		6.00%
Inception year	2016
Gain (loss) on fair value adjustments of the hedged item related to interest rate swaps	$ (7)	14					$ 20	$ 13
Guaranteed Notes due 2027, $1,000 million, 3.50% [Member]
Debt Instrument [Line Items]
Maturity year	2027
Stated interest rate (in hundredths)	3.50%			3.50%		3.50%		3.50%		3.50%
Inception year	2017
Gain (loss) on fair value adjustments of the hedged item related to interest rate swaps	$ (22)	$ 31			$ 21	$ (1)
Guaranteed Notes due 2022, Euro 750 million, 1.875% [Member]
Debt Instrument [Line Items]
Maturity year	2022
Stated interest rate (in hundredths)	1.875%			1.875%		1.875%		1.875%		1.875%
Inception year	2018
Gain (loss) on fair value adjustments of the hedged item related to interest rate swaps	$ 0		$ (1)	$ (1)

Debt, Short-term debt (Details)

Debt, Short-term debt (Details) - USD ($) $ in Millions	1 Months Ended
	Feb. 28, 2019	Mar. 31, 2019	Dec. 31, 2018
Short-term debt [Line Items]
Short-term debt		$ 2,377	$ 885
$2,000 million Term Loan
Short-term debt [Line Items]
Face amount senior unsecured term loan	$ 2,000
Short-term debt		2,000
$2,500 million Senior Revolving Credit Facility [Member]
Short-term debt [Line Items]
Maximum borrowing capacity		2,500
Short-term debt		0	0
$900 million U.S. Receivables Facility [Member]
Short-term debt [Line Items]
Maximum borrowing capacity		900
Short-term debt		0	0
Commercial paper [Member]
Short-term debt [Line Items]
Maximum borrowing capacity		2,500
Short-term debt		251	809
Precious metal financings [Member]
Short-term debt [Line Items]
Short-term debt		123	71
Other short-term debt [Member]
Short-term debt [Line Items]
Short-term debt		$ 3	$ 5

Debt, Description of long-term

Debt, Description of long-term debt (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Feb. 28, 2019	Mar. 31, 2019	Mar. 31, 2018
Long-term debt [Line Items]
Repayments of long-term debt		$ 1,000	$ 0
Term Loan due 2022, $4,000 million
Long-term debt [Line Items]
Issuance date		March 2019
Long-term debt, term		3 years
Maximum borrowing capacity		$ 4,000
Description of interest rate		Borrowings under the credit agreement bear interest at either a base rate or LIBOR rate, as defined, plus in each case, an applicable margin determined by reference to LyondellBasell Industries N.V.’s current credit ratings.
Terms of debt covenants		The credit agreement contains customary representations and warranties and contains certain restrictive covenants regarding, among other things, secured indebtedness, subsidiary indebtedness, mergers and sales of assets. In addition, we are required to maintain a leverage ratio at the end of every fiscal quarter of 3.50 to 1.00, or less, for the period covering the most recent four quarters.
Maturity year		2022
Senior Notes due 2019, $1,000 million, 5.0% [Member]
Long-term debt [Line Items]
Face amount		$ 1,000
Repayments of long-term debt	$ 1,000
Interest rate (in hundredths)		5.00%
Maturity year		2019
Write-off of debt issuance cost	less than $1 million
Charges associated with the redemption of Senior Notes due 2019 before write off of debt issuance cost	$ 8

Debt, Description of short-term

Debt, Description of short-term debt (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Feb. 28, 2019	Mar. 31, 2019	Dec. 31, 2018
Description of short-term debt [Line Items]
Weighted average interest rate, short-term debt (in hundredths)		3.60%	3.10%
$2,000 million Term Loan
Description of short-term debt [Line Items]
Issuance date	February 2019
Terms senior unsecured term loan	364-day
Face amount senior unsecured term loan	$ 2,000
Description of interest rate	Borrowings under the credit agreement will bear interest at either a base rate or LIBOR rate, as defined, plus in each case, an applicable margin determined by reference to LyondellBasell Industries N.V.’s current credit ratings.
Terms of debt covenants	The credit agreement contains customary covenants and warranties, including specified restrictions on indebtedness, including secured and subsidiary indebtedness, and merger and sales of assets. In addition, we are required to maintain a leverage ratio at the end of every fiscal quarter of 3.50 to 1.00, or less, for the period covering the most recent four quarters.
$2,500 million Senior Revolving Credit Facility [Member]
Description of short-term debt [Line Items]
Description of interest rate		Borrowings under the facility bear interest at either a base rate or LIBOR rate, plus an applicable margin. Additional fees are incurred for the average daily unused commitments.
Terms of debt covenants		The facility contains customary covenants and warranties, including specified restrictions on indebtedness and liens. In addition, we are required to maintain a leverage ratio at the end of every fiscal quarter of 3.50 to 1.00, or less, for the period covering the most recent four quarters.
Maximum borrowing capacity		$ 2,500
Expiration date		June 2022
Maximum allowed letters of credit		$ 500
Additional borrowing capacity, uncommitted loans		$ 1,000
Commercial paper program [Member]
Description of short-term debt [Line Items]
Description of interest rate		Interest rates on the commercial paper outstanding at March 31, 2019 are based on the terms of the notes and range from 2.63% to 2.69%.
Maximum borrowing capacity		$ 2,500
$900 million U.S. Receivables Facility [Member]
Description of short-term debt [Line Items]
Terms of debt covenants		We are required to maintain a leverage ratio at the end of every fiscal quarter of 3.50 to 1.00, or less, for the period covering the most recent four quarters.
Maximum borrowing capacity		$ 900
Expiration date		July 2021
Maximum allowed letters of credit		$ 200
Additional borrowing capacity, uncommitted loans		300
Outstanding borrowings		0
Outstanding letters of credit		$ 0

Debt, Debt issuance costs inclu

Debt, Debt issuance costs included in interest expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Debt discount and issuance costs [Abstract]
Amortization of debt discounts and debt issuance costs	$ 1	$ 4

Debt, Formation of LYB Internat

Debt, Formation of LYB International Finance III, LLC (Details)	3 Months Ended
	Mar. 31, 2019
Formation of direct, 100% owned finance subsidiary [Abstract]
LYB International Finance III, LLC business activities and description	LYB International Finance III, LLC is a direct, 100% owned finance subsidiary of LyondellBasell N.V., as defined in Rule 3-10(b) of Regulation S-X. Any debt securities issued by LYB International Finance III, LLC will be fully and unconditionally guaranteed by LyondellBasell N.V.

Leases, Adoption of the new lea

Leases, Adoption of the new lease accounting guidance (Details) - USD ($) $ in Millions	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
New accounting pronouncements [Line Items]
Operating lease assets	$ 1,534
Operating lease liabilities	1,555
Accrued liabilities	1,443		$ 1,536
Other liabilities	$ 1,830		$ 1,897
ASU 2016-02 adoption [Member]
New accounting pronouncements [Line Items]
Operating lease assets		$ 1,533
Operating lease liabilities		1,553
Accrued liabilities		(2)
Other liabilities		$ (18)

Leases, Operating leases (Detai

Leases, Operating leases (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Lease description [Line Items]
Operating lease assets	$ 1,534
Operating lease liabilities	$ 1,555
Operating lease, weighted average discount rate	4.50%
Operating lease, weighted average remaining lease term	8 years
Operating lease, extension term	20 years
Accrued liabilities [Member]
Lease description [Line Items]
Operating lease liability, current	$ 273
Minimum [Member]
Lease description [Line Items]
Operating lease, lessee, term of contract	less than 1 year
Maximum [Member]
Lease description [Line Items]
Operating lease, lessee, term of contract	30 years

Leases, Maturities of operating

Leases, Maturities of operating lease liabilities (Details) $ in Millions	Mar. 31, 2019USD ($)
Maturities of operating lease liabilities [Abstract]
Last nine months of 2019	$ 255
2020	295
2021	247
2022	211
2023	183
Thereafter	645
Total lease payments	1,836
Less: Imputed Interest	(281)
Present value of lease liabilities	$ 1,555

Leases, Operating lease cost (D

Leases, Operating lease cost (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Lease, Cost [Abstract]
Operating lease cost	$ 90
Short-term lease cost	40
Variable lease cost	17
Net operating lease cost	$ 147

Leases, Other Information (Deta

Leases, Other Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Leases, Other information [Line Items]
Operating cash flows from operating leases	$ 91
Leased assets obtained in exchange of new operating lease liabilities	1,652
Additional operating leases, not yet commenced	$ 544
Minimum [Member]
Leases, Other information [Line Items]
Additional operating leases, not yet commenced, term of contract	2 years
Maximum [Member]
Leases, Other information [Line Items]
Additional operating leases, not yet commenced, term of contract	20 years

Leases, Lease commitments, futu

Leases, Lease commitments, future operating lease commitments (Details) $ in Millions	Dec. 31, 2018USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019	$ 365
2020	288
2021	256
2022	236
2023	204
Thereafter	1,126
Total minimum lease payments	$ 2,475

Financial Instruments and Fai_3

Financial Instruments and Fair Value Measurements, Market risks, commodity prices and foreign currency rates (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Marketable Securities [Abstract]
Amount of marketable securities classified as cash and cash equivalents	$ 15		$ 19
Foreign currency [Abstract]
Foreign currency gain (loss)	$ 11	$ 6

Financial Instruments and Fai_4

Financial Instruments and Fair Value Measurements, Summary of derivative and non-derivative financial instruments outstanding measured at fair value on a recurring basis (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	$ 4,569	$ 4,738
Notional amount, derivative and non-derivative financial instruments liabilities	4,163	6,111
Fair value, derivative and non-derivative financial instruments assets	693	1,090
Fair value, derivative and non-derivative financial instruments liabilities	191	203
Derivative [Member] | Designated as hedges: [Member] | Commodities [Member] | Prepaid expenses and other current assets [Member] | Fair value, inputs, level 1 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	618	472
Fair value, derivative and non-derivative financial instruments assets	7	12
Derivative [Member] | Designated as hedges: [Member] | Commodities [Member] | Accrued liabilities [Member] | Fair value, inputs, level 1 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments liabilities	0	4
Fair value, derivative and non-derivative financial instruments liabilities	0	0
Derivative [Member] | Designated as hedges: [Member] | Foreign currency [Member] | Prepaid expenses and other current assets [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	0	0
Fair value, derivative and non-derivative financial instruments assets	52	27
Derivative [Member] | Designated as hedges: [Member] | Foreign currency [Member] | Other assets [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	2,000	2,000
Fair value, derivative and non-derivative financial instruments assets	169	117
Derivative [Member] | Designated as hedges: [Member] | Foreign currency [Member] | Accrued liabilities [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments liabilities	0	0
Fair value, derivative and non-derivative financial instruments liabilities	33	17
Derivative [Member] | Designated as hedges: [Member] | Foreign currency [Member] | Other liabilities [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments liabilities	950	950
Fair value, derivative and non-derivative financial instruments liabilities	58	75
Derivative [Member] | Designated as hedges: [Member] | Interest rate contract [Member] | Prepaid expenses and other current assets [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	0	600
Fair value, derivative and non-derivative financial instruments assets	26	33
Derivative [Member] | Designated as hedges: [Member] | Interest rate contract [Member] | Other assets [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	790	143
Fair value, derivative and non-derivative financial instruments assets	3	1
Derivative [Member] | Designated as hedges: [Member] | Interest rate contract [Member] | Accrued liabilities [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments liabilities	1,000	1,400
Fair value, derivative and non-derivative financial instruments liabilities	53	16
Derivative [Member] | Designated as hedges: [Member] | Interest rate contract [Member] | Other liabilities [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments liabilities	1,850	2,500
Fair value, derivative and non-derivative financial instruments liabilities	41	45
Derivative [Member] | Not designated as hedges: [Member] | Commodities [Member] | Prepaid expenses and other current assets [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	124	35
Fair value, derivative and non-derivative financial instruments assets	2	5
Derivative [Member] | Not designated as hedges: [Member] | Commodities [Member] | Accrued liabilities [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments liabilities	129	63
Fair value, derivative and non-derivative financial instruments liabilities	6	14
Derivative [Member] | Not designated as hedges: [Member] | Foreign currency [Member] | Prepaid expenses and other current assets [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	618	599
Fair value, derivative and non-derivative financial instruments assets	5	3
Derivative [Member] | Not designated as hedges: [Member] | Foreign currency [Member] | Accrued liabilities [Member] | Fair value, inputs, level 2 [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments liabilities	234	1,165
Fair value, derivative and non-derivative financial instruments liabilities	0	7
Non-derivatives: [Member] | Available-for-sale debt securities [Member] | Short-term investments [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	258	567
Fair value, derivative and non-derivative financial instruments assets	259	567
Non-derivatives: [Member] | Equity securities [Member] | Short-term investments [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments assets	161	322
Fair value, derivative and non-derivative financial instruments assets	170	325
Non-derivatives: [Member] | Performance share awards [Member] | Accrued liabilities [Member]
Derivative and non-derivative assets and liabilities at fair value, net, by balance sheet classification [Abstract]
Notional amount, derivative and non-derivative financial instruments liabilities	0	29
Fair value, derivative and non-derivative financial instruments liabilities	$ 0	$ 29

Financial Instruments and Fai_5

Financial Instruments and Fair Value Measurements, Outstanding foreign currency and commodity contracts (Details) - Not designated as hedges: [Member]	3 Months Ended
	Mar. 31, 2019
Foreign currency rates [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, maturity date	April 2019
Foreign currency rates [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, maturity date	August 2019
Commodities [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, maturity date	April 2019
Commodities [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, maturity date	May 2019

Financial Instruments and Fai_6

Financial Instruments and Fair Value Measurements, Carrying value and estimated fair value of non-derivative financial instruments (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Liabilities: [Abstract]
Short-term debt, carrying value	$ 2,377	$ 885
Nonrecurring [Member] | Non-derivatives: [Member]
Assets: [Abstract]
Short-term loans receivable, carrying value	534	544
Short-term loans receivable, fair value	534	544
Liabilities: [Abstract]
Short-term debt, carrying value	2,126	71
Long-term debt, carrying value	7,521	8,492
Total liabilities, carrying value	9,647	8,563
Short-term debt, fair value	2,131	77
Long-term debt, fair value	7,789	8,476
Total liabilities, fair value	$ 9,920	8,553
Derivative Fair Value Level And Transfers Description	All financial instruments in the table above are classified as Level 2. There were no transfers between Level 1 and Level 2 for any of our financial instruments during the three months ended March 31, 2019 and the year ended December 31, 2018.
Amount of transfers between Level 1 and Level 2 of the fair value hierarchy	$ 0	$ 0

Financial Instruments and Fai_7

Financial Instruments and Fair Value Measurements, Summary of net investment hedges (Details) - Net investment hedging [Member] € in Millions, $ in Millions	Mar. 31, 2019USD ($)	Mar. 31, 2019EUR (€)	Dec. 31, 2018USD ($)	Dec. 31, 2018EUR (€)
Derivative [Member] | Foreign-currency denominated debt [Member]
Derivative [Line Items]
Notional amounts value	$ 650	€ 617	$ 650	€ 617
Non-derivatives: [Member] | Euro denominated notes [Member]
Derivative [Line Items]
Notional amounts value	$ 842	€ 750	$ 858	€ 750

Financial Instruments and Fai_8

Financial Instruments and Fair Value Measurements, Summary of cash flow hedges (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Feb. 28, 2019	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Derivative [Line Items]
Redemption of 5% Senior Notes due 2019		$ 1,000	$ 0
Cash-flow hedge [Member] | Interest expense [Member]
Derivative [Line Items]
Pre-tax deferred gains (losses) scheduled to be reclassified from AOCI to earnings over the next twelve months		less than $1 million
Cash-flow hedge [Member] | Sales revenue, net [Member]
Derivative [Line Items]
Pre-tax unrealized gain (loss) to be reclassified to earnings over the next twelve months		$ 4
Cash-flow hedge [Member] | Cost of sales [Member]
Derivative [Line Items]
Pre-tax unrealized gain (loss) to be reclassified to earnings over the next twelve months		3
Cash-flow hedge [Member] | Foreign currency [Member]
Derivative [Line Items]
Notional amounts value		$ 2,300		$ 2,300
Cash-flow hedge [Member] | Foreign currency [Member] | Minimum [Member]
Derivative [Line Items]
Expiration date		2021
Cash-flow hedge [Member] | Foreign currency [Member] | Maximum [Member]
Derivative [Line Items]
Expiration date		2027
Cash-flow hedge [Member] | Interest rates [Member]
Derivative [Line Items]
Notional amounts value	$ 1,000	$ 1,500		1,500
Cash-flow hedge [Member] | Interest rates [Member] | Senior Notes due 2019, $1,000 million, 5.0% [Member]
Derivative [Line Items]
Notional amounts value	1,000
Redemption of 5% Senior Notes due 2019	$ 1,000
Stated interest rate (in hundredths)	5.00%
Maturity year	2019
Proceeds from settlement of cash flow hedge	$ 4
Cash-flow hedge [Member] | Interest rates [Member] | Minimum [Member]
Derivative [Line Items]
Expiration date		2020
Cash-flow hedge [Member] | Interest rates [Member] | Maximum [Member]
Derivative [Line Items]
Expiration date		2021
Cash-flow hedge [Member] | Commodities [Member]
Derivative [Line Items]
Notional amounts value		$ 618		$ 476
Expiration date		2019
Cash-flow hedge [Member] | Commodity feedstock price [Member]
Derivative [Line Items]
Notional amounts value	78	$ 67
Payments for settlement of hedges		4
Cash-flow hedge [Member] | Commodity product sale price [Member]
Derivative [Line Items]
Notional amounts value	97	83
Proceeds from settlement of cash flow hedge		$ 6
Senior Notes due 2019, $1,000 million, 5.0% [Member]
Derivative [Line Items]
Redemption of 5% Senior Notes due 2019	$ 1,000
Stated interest rate (in hundredths)		5.00%
Maturity year		2019

Financial Instruments and Fai_9

Financial Instruments and Fair Value Measurements, Summary of fair value hedges (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Feb. 28, 2019	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Derivative [Line Items]
Redemption of 5% Senior Notes due 2019		$ 1,000	$ 0
Senior Notes due 2019 [Member]
Derivative [Line Items]
Face amount		$ 1,000
Stated interest rate (in hundredths)		5.00%
Maturity year		2019
Redemption of 5% Senior Notes due 2019	$ 1,000
Fair value hedge [Member] | Interest rate contract [Member]
Derivative [Line Items]
Notional amounts value		$ 2,140		$ 3,143
Fair value hedge [Member] | Interest rate contract [Member] | Minimum [Member]
Derivative [Line Items]
Derivative, maturity date		2021
Fair value hedge [Member] | Interest rate contract [Member] | Maximum [Member]
Derivative [Line Items]
Derivative, maturity date		2027
Fair value hedge [Member] | Interest rate contract [Member] | Senior Notes due 2019 [Member]
Derivative [Line Items]
Stated interest rate (in hundredths)	5.00%
Maturity year	2019
Notional amounts value	$ 1,000
Redemption of 5% Senior Notes due 2019	1,000
Payments for settlement of hedges	$ 5

Financial Instruments and Fa_10

Financial Instruments and Fair Value Measurements, Pretax effect of derivative instruments charged directly to income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Derivative Instruments, gain (loss) [Line Items]
Gain (loss) recognized in AOCI	$ 8	$ (104)
Gain (loss) reclassified from AOCI to income	(44)	66
Gain (loss) recognized in income	7	(53)
Amount of gain (loss) recognized in other comprehensive income on derivative amount excluded for effectiveness testing	2	4
Pretax effect of the periodic receipt of fixed interest and payment of variable interest	3	(3)
Amount of gain (loss) recognized in earnings on derivative amount excluded for effectiveness testing	5	5
Derivatives: [Member] | Designated as hedges: [Member] | Commodities [Member] | Sales and other operating revenues [Member]
Derivative Instruments, gain (loss) [Line Items]
Gain (loss) recognized in AOCI	(50)	0
Gain (loss) reclassified from AOCI to income	(5)	0
Gain (loss) recognized in income	0	0
Derivatives: [Member] | Designated as hedges: [Member] | Commodities [Member] | Cost of sales [Member]
Derivative Instruments, gain (loss) [Line Items]
Gain (loss) recognized in AOCI	46	(3)
Gain (loss) reclassified from AOCI to income	4	4
Gain (loss) recognized in income	0	0
Derivatives: [Member] | Designated as hedges: [Member] | Foreign currency [Member] | Other income (expense), net; Interest expense [Member]
Derivative Instruments, gain (loss) [Line Items]
Gain (loss) recognized in AOCI	70	(125)
Gain (loss) reclassified from AOCI to income	(39)	62
Gain (loss) recognized in income	17	13
Derivatives: [Member] | Designated as hedges: [Member] | Interest rate contract [Member] | Interest expense [Member]
Derivative Instruments, gain (loss) [Line Items]
Gain (loss) recognized in AOCI	(74)	49
Gain (loss) reclassified from AOCI to income	(4)	0
Gain (loss) recognized in income	(34)	(44)
Derivatives: [Member] | Not designated as hedges: [Member] | Commodities [Member] | Sales and other operating revenues [Member]
Derivative Instruments, gain (loss) [Line Items]
Gain (loss) recognized in AOCI	0	0
Gain (loss) reclassified from AOCI to income	0	0
Gain (loss) recognized in income	2	1
Derivatives: [Member] | Not designated as hedges: [Member] | Commodities [Member] | Cost of sales [Member]
Derivative Instruments, gain (loss) [Line Items]
Gain (loss) recognized in AOCI	0	0
Gain (loss) reclassified from AOCI to income	0	0
Gain (loss) recognized in income	3	(4)
Derivatives: [Member] | Not designated as hedges: [Member] | Foreign currency [Member] | Other income (expense), net [Member]
Derivative Instruments, gain (loss) [Line Items]
Gain (loss) recognized in AOCI	0	0
Gain (loss) reclassified from AOCI to income	0	0
Gain (loss) recognized in income	19	(19)
Non-derivatives: [Member] | Designated as hedges: [Member] | Long-term debt [Member] | Other income (expense), net [Member]
Derivative Instruments, gain (loss) [Line Items]
Gain (loss) recognized in AOCI	16	(25)
Gain (loss) reclassified from AOCI to income	0	0
Gain (loss) recognized in income	$ 0	$ 0

Financial Instruments and Fa_11

Financial Instruments and Fair Value Measurements, Summary of available-for-sale debt securities (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Available-for-sale debt securities, additional information [Abstract]
Allowance for credit losses related to AFS debt securities	$ 0
Amount of losses related to other-than-temporary impairments on available-for-sale debt securities			$ 0
Proceeds from maturities and sales of available-for-sale securities and the related gross realized gains and losses [Abstract]
Proceeds from maturities of securities	308	$ 335
Proceeds from sales of securities	0	$ 0
Bonds [Member]
Debt Securities, Available-for-sale [Abstract]
Cost	258		567
Gross unrealized gains	1		0
Gross unrealized losses	0		0
Fair value	259		567
Available-for-sale debt securities continuous unrealized loss position [Abstract]
Fair value of available-for-sale debt securities in continuous unrealized loss position for less than twelve months	83		118
Unrealized losses on available-for-sale debt securities in continuous unrealized loss position for less than twelve months	0		(1)
Fair value of available-for-sale debt securities in continuous unrealized loss position for greater than twelve months	0		45
Unrealized losses on available-for-sale debt securities in continuous unrealized loss position for greater than twelve months	$ 0		$ 0
Bonds [Member] | Minimum [Member]
Available-for-sale debt securities, additional information [Abstract]
Investment maturity period	9 months
Bonds [Member] | Maximum [Member]
Available-for-sale debt securities, additional information [Abstract]
Investment maturity period	19 months

Financial Instruments and Fa_12

Financial Instruments and Fair Value Measurements, Equity securities (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Unrealized gains and losses for equity securities [Abstract]
Net gain (loss) recognized during the period	$ 7	$ (1)
Gain (loss) on sale of equity securities net	1	0
Unrealized gain (loss) on equity securities	6	$ (1)
Equity securities [Member]
Derivative [Line Items]
Notional amount	161		$ 322
Fair value	$ 170		$ 325

Income Taxes (Details)

Income Taxes (Details)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Effective income tax rate reconciliation, percent [Abstract]
Effective income tax rate (in hundredths)	19.90%	19.80%

Income Taxes, Unrecognized tax

Income Taxes, Unrecognized tax benefits (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Income tax uncertainties [Abstract]
Unrecognized tax benefits relating to uncertain tax positions	$ 269	$ 269
Reasonably possible decrease in unrecognized tax benefits within the next twelve months	$ 105

Commitments and Contingencies_2

Commitments and Contingencies (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Capital purchase commitment	$ 681
Site contingency [Line Items]
Total accrued liability for future environmental remediation costs	$ 93	$ 90	$ 102	$ 102
Minimum [Member]
Site contingency [Line Items]
Accrued liability for individual site range	less than $1 million
Maximum [Member]
Site contingency [Line Items]
Accrued liability for individual site range	$16 million

Commitments and Contingencies,

Commitments and Contingencies, Accrued environmental liability (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 90	$ 102
Additional provisions	7	0
Amounts paid	(3)	(2)
Foreign exchange effects	(1)	2
Ending balance	$ 93	$ 102

Commitments and Contingencies_3

Commitments and Contingencies, Indemnification (Details)	3 Months Ended
	Mar. 31, 2019
Minimum [Member]
Loss Contingencies [Line Items]
Indemnification arrangement period	5 years
Maximum [Member]
Loss Contingencies [Line Items]
Indemnification arrangement period	10 years

Stockholders' Equity and Rede_3

Stockholders' Equity and Redeemable Non-controlling Interests, Stockholders' Equity, Dividend distributions (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended
	Mar. 31, 2019	Feb. 28, 2019	Mar. 31, 2019
Summary of dividend payments [Abstract]
Dividend per ordinary share (per share)	$ 1
Aggregate dividends paid	$ 372
Date of record common stock shareholders	Mar. 4, 2019
Dividend on A. Schulman Special Stock (per share)		$ 15	$ 15
Aggregate dividends on Special Stock of Subsidiary paid		$ 2	$ 2
Date of record Special Stock of Subsidiary shareholders		Jan. 15, 2019

Stockholders' Equity and Rede_4

Stockholders' Equity and Redeemable Non-controlling Interests, Stockholders' Equity, Share repurchase programs (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended
	Jun. 30, 2018	Mar. 31, 2019	Mar. 31, 2018
Share repurchase programs [Line Items]
Cash paid for shares repurchased		$ 512	$ 119
June 2018 Share Repurchase Program [Member]
Share repurchase programs [Line Items]
Stock repurchase program shares authorized to be repurchased	57,844,016
Stock repurchase program expiration date	Dec. 1, 2019
Shares repurchased (in shares)		5,648,900
Average purchase price (in dollars per share)		$ 86.38
Total purchase price, including commissions		$ 488
May 2017 Share Repurchase Program [Member]
Share repurchase programs [Line Items]
Shares repurchased (in shares)			1,292,480
Average purchase price (in dollars per share)			$ 107.17
Total purchase price, including commissions			$ 138

Stockholders' Equity and Rede_5

Stockholders' Equity and Redeemable Non-controlling Interests, Stockholders' Equity, Ordinary shares (Details) - shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Ordinary share outstanding [Abstract]
Beginning balance (in shares)	375,696,661
Ending balance (in shares)	370,326,103
Ordinary shares [Member]
Ordinary share outstanding [Abstract]
Beginning balance (in shares)	375,696,661	394,512,054
Share-based compensation (in shares)	235,550	235,671
Employee stock purchase plan (in shares)	42,792	27,179
Purchase of ordinary shares (in shares)	(5,648,900)	(1,292,480)
Ending balance (in shares)	370,326,103	393,482,424

Stockholders' Equity and Rede_6

Stockholders' Equity and Redeemable Non-controlling Interests, Stockholders' Equity, Treasury shares (Details) - shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Ordinary shares held as treasury shares: [Abstract]
Beginning balance (in shares)	24,513,619
Ending balance (in shares)	29,884,177
Treasury shares [Member]
Ordinary shares held as treasury shares: [Abstract]
Beginning balance (in shares)	24,513,619	183,928,109
Share-based compensation (in shares)	(235,550)	(235,671)
Employee stock purchase plan (in shares)	(42,792)	(27,179)
Purchase of ordinary shares (in shares)	5,648,900	1,292,480
Ending balance (in shares)	29,884,177	184,957,739

Stockholders' Equity and Rede_7

Stockholders' Equity and Redeemable Non-controlling Interests, Stockholders' Equity, Components of accumulated other comprehensive income (loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Accumulated other comprehensive income (loss) [Line Items]
Accumulated other comprehensive income (loss), beginning of period	$ (1,363)	$ (1,285)
Adoption of accounting standards		(70)
Other comprehensive income (loss) before reclassifications	(26)	(24)
Tax (expense) benefit before reclassifications	1	20
Amounts reclassified from accumulated other comprehensive income (loss)	(38)	74
Tax (expense) benefit	8	(16)
Total other comprehensive income (loss), net of tax	(55)	54
Accumulated other comprehensive income (loss), end of period	(1,418)	(1,301)
Financial derivatives [Member]
Accumulated other comprehensive income (loss) [Line Items]
Accumulated other comprehensive income (loss), beginning of period	(68)	(120)
Adoption of accounting standards		(2)
Other comprehensive income (loss) before reclassifications	(19)	(61)
Tax (expense) benefit before reclassifications	4	17
Amounts reclassified from accumulated other comprehensive income (loss)	(45)	66
Tax (expense) benefit	10	(15)
Total other comprehensive income (loss), net of tax	(50)	7
Accumulated other comprehensive income (loss), end of period	(118)	(115)
Unrealized gains (losses) on equity securities and equity securities held by equity investees [Member]
Accumulated other comprehensive income (loss) [Line Items]
Accumulated other comprehensive income (loss), beginning of period		17
Adoption of accounting standards		(17)
Other comprehensive income (loss) before reclassifications		0
Tax (expense) benefit before reclassifications		0
Amounts reclassified from accumulated other comprehensive income (loss)		0
Tax (expense) benefit		0
Total other comprehensive income (loss), net of tax		0
Accumulated other comprehensive income (loss), end of period		0
Defined benefit pension and other postretirement benefit plans [Member]
Accumulated other comprehensive income (loss) [Line Items]
Accumulated other comprehensive income (loss), beginning of period	(442)	(421)
Adoption of accounting standards		(51)
Other comprehensive income (loss) before reclassifications	0	0
Tax (expense) benefit before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income (loss)	7	8
Tax (expense) benefit	(2)	(1)
Total other comprehensive income (loss), net of tax	5	7
Accumulated other comprehensive income (loss), end of period	(437)	(465)
Foreign currency translation adjustments [Member]
Accumulated other comprehensive income (loss) [Line Items]
Accumulated other comprehensive income (loss), beginning of period	(853)	(761)
Adoption of accounting standards		0
Other comprehensive income (loss) before reclassifications	(7)	37
Tax (expense) benefit before reclassifications	(3)	3
Amounts reclassified from accumulated other comprehensive income (loss)	0	0
Tax (expense) benefit	0	0
Total other comprehensive income (loss), net of tax	(10)	40
Accumulated other comprehensive income (loss), end of period	$ (863)	$ (721)

Stockholders' Equity and Rede_8

Stockholders' Equity and Redeemable Non-controlling Interests, Stockholders' Equity, Reclassification out of accumulated other comprehensive income (loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]
Other income (expense), net	$ 25	$ 24
Sales and other operating revenues	8,778	9,767
Cost of sales	7,446	8,012
Interest expense (income)	92	91
Income (loss) before income taxes	1,020	1,534
Provision for (benefit from) income taxes	203	303
Net income	817	1,231
Amounts reclassified out of accumulated other comprehensive income (loss) [Member]
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]
Income (loss) before income taxes	(38)	74
Provision for (benefit from) income taxes	(8)	16
Net income	(30)	58
Financial derivatives [Member] | Amounts reclassified out of accumulated other comprehensive income (loss) [Member]
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]
Provision for (benefit from) income taxes	(10)	15
Net income	(35)	51
Financial derivatives [Member] | Foreign currency [Member] | Amounts reclassified out of accumulated other comprehensive income (loss) [Member]
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]
Other income (expense), net	(39)	62
Financial derivatives [Member] | Commodities [Member] | Amounts reclassified out of accumulated other comprehensive income (loss) [Member]
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]
Sales and other operating revenues	(6)
Cost of sales	4	4
Financial derivatives [Member] | Interest rate contract [Member] | Amounts reclassified out of accumulated other comprehensive income (loss) [Member]
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]
Interest expense (income)	(4)
Amortization of defined pension items [Member] | Amounts reclassified out of accumulated other comprehensive income (loss) [Member]
Reclassification adjustments out of accumulated other comprehensive income (loss) [Line Items]
Amortization of actuarial (gain) loss	7	8
Provision for (benefit from) income taxes	2	1
Net income	$ 5	$ 7

Stockholders' Equity and Rede_9

Stockholders' Equity and Redeemable Non-controlling Interests, Stockholders' Equity, Purchase of non-controlling interest (Details) - USD ($) $ in Millions	1 Months Ended
	Feb. 28, 2019	Dec. 31, 2018
Noncontrolling Interest [Abstract]
Non-controlling interest, ownership percentage by parent	100.00%	85.00%
Purchase of non-controlling interest in subsidiary La Porte Methanol Company, L.P.	$ 63

Stockholders' Equity and Red_10

Stockholders' Equity and Redeemable Non-controlling Interests, Redeemable non-controlling interests (Details) - shares	Mar. 31, 2019	Dec. 31, 2018
Temporary Equity [Abstract]
Cumulative perpetual special stock, shares outstanding	115,374	115,374

Per Share Data (Details)

Per Share Data (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended	3 Months Ended
	Feb. 28, 2019	Mar. 31, 2019	Mar. 31, 2018
Earnings per share reconciliation [Abstract]
Net income attributable to LyondellBasell Industries N.V.		$ 817	$ 1,231
Dividends on A. Schulman Special Stock	$ (2)	(2)
Net income attributable to participating securities		(1)	(1)
Net income attributable to ordinary shareholders - Basic		814	1,230
Net income attributable to ordinary shareholders - Diluted		$ 814	$ 1,230
Weighted average number of shares outstanding reconciliation [Abstract]
Basic weighted average common stock outstanding (in shares)		372	394
Effect of dilutive securities: [Abstract]
PSU awards		0	1
Potential dilutive shares (in shares)		372	395
Earnings per share: [Abstract]
Basic (in dollars per share)		$ 2.19	$ 3.12
Diluted (in dollars per share)		$ 2.19	$ 3.11
Earnings per share, basic and diluted, other disclosures [Abstract]
Participating securities (in shares)		0.6	0.5
Dividends declared per share of common stock (in dollars per share)		$ 1	$ 1

Segment and Related Informati_3

Segment and Related Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)	Mar. 31, 2018USD ($)
Segment Reporting [Abstract]
Number of reportable segments	6
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	$ 8,778	$ 9,767
Income (loss) from equity investments	64	96
EBITDA	1,428	1,913
O&P - Americas [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	1,393	1,787
Income (loss) from equity investments	11	17
EBITDA	516	756
O&P - EAI [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	2,343	2,742
Income (loss) from equity investments	51	76
EBITDA	296	419
I&D [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	1,852	2,310
Income (loss) from equity investments	2	3
EBITDA	390	486
APS [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	1,338	838
Income (loss) from equity investments	0	0
EBITDA	148	123
Integration costs	16
Refining [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	1,743	2,002
Income (loss) from equity investments	0	0
EBITDA	(15)	63
Technology [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	109	88
Income (loss) from equity investments	0	0
EBITDA	83	56
Other [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	0	0
Income (loss) from equity investments	0	0
EBITDA	10	10
Operating Segments [Member] | O&P - Americas [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	2,111	2,646
Operating Segments [Member] | O&P - EAI [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	2,535	2,960
Operating Segments [Member] | I&D [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	1,894	2,343
Operating Segments [Member] | APS [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	1,339	838
Operating Segments [Member] | Refining [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	1,882	2,257
Operating Segments [Member] | Technology [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	141	115
Operating Segments [Member] | Other [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	(1,124)	(1,392)
Intersegment Eliminations [Member] | O&P - Americas [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	(718)	859
Intersegment Eliminations [Member] | O&P - EAI [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	(192)	218
Intersegment Eliminations [Member] | I&D [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	(42)	33
Intersegment Eliminations [Member] | APS [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	(1)	0
Intersegment Eliminations [Member] | Refining [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	(139)	255
Intersegment Eliminations [Member] | Technology [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	(32)	27
Intersegment Eliminations [Member] | Other [Member]
Summarized financial information concerning reportable segments: [Abstract]
Sales and other operating revenues	$ (1,124)	$ (1,392)

Segment and Related Informati_4

Segment and Related Information, Reconciliation of EBITDA to income (loss) from continuing operations before income taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
EBITDA: [Abstract]
Total segment EBITDA	$ 1,418	$ 1,903
Other EBITDA	10	10
Less: [Abstract]
Depreciation and amortization expense	(322)	(299)
Interest expense	(92)	(91)
Add: [Abstract]
Interest income	6	11
Income before income taxes	$ 1,020	$ 1,534