China Eastern Airlines Corporation Limited (CHEAF) 20-F 29 Apr 20 2019 FY Annual report (foreign) Financial data

Cover Page

Cover Page	12 Months Ended
	Dec. 31, 2019shares
Document Information [Line Items]
Document Type	20-F
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	CHINA EASTERN AIRLINES CORP LTD
Entity Central Index Key	0001030475
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Voluntary Filers	No
Entity Interactive Data Current	Yes
Document Accounting Standard	International Financial Reporting Standards
Document Annual Report	true
Entity Address, Country	CN
Document Transition Report	false
Document Shell Company Report	false
Document Registration Statement	false
Entity Incorporation, State or Country Code	F4
American Depositary Shares [member]
Document Information [Line Items]
Trading Symbol	CEA
Title of 12(b) Security	American Depositary Shares
Security Exchange Name	NYSE
H shares [member]
Document Information [Line Items]
Title of 12(b) Security	Ordinary H Shares, par value RMB1.00 per share
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding	5,176,777,777
No Trading Symbol Flag	true
A shares [member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	11,202,731,426

Consolidated Statement of Profi

Consolidated Statement of Profit or Loss and Other Comprehensive Income - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Profit or loss [abstract]
Revenues	¥ 120,986	¥ 115,278	¥ 102,475
Other operating income and gains	7,202	6,592	7,481
Revenue and other	128,188	121,870	109,956
Operating expenses
Aircraft fuel	(34,191)	(33,680)	(25,131)
Take-off and landing charges	(16,457)	(14,914)	(13,254)
Depreciation and amortization	(22,080)	(15,313)	(13,969)
Wages, salaries and benefits	(24,152)	(22,134)	(20,320)
Aircraft maintenance	(3,380)	(3,738)	(5,346)
Food and beverages	(3,667)	(3,383)	(3,090)
Low value and short-term lease rentals	(631)
Aircraft operating lease rentals		(4,306)	(4,318)
Other operating lease rentals		(928)	(836)
Selling and marketing expenses	(4,134)	(3,807)	(3,294)
Civil aviation development fund	(1,831)	(2,235)	(2,080)
Ground services and other expenses	(2,476)	(2,845)	(3,248)
Impairment charges	(4)	(318)	(494)
Impairment losses on financial assets, net	(16)	(27)	3
Fair value changes of financial asset at fair value through profit or loss	25	(27)
Gain/(loss) on fair value changes of derivative-financial instruments		311	(311)
Indirect operating expenses	(5,113)	(5,217)	(4,837)
Total operating expenses	(118,107)	(112,561)	(100,525)
Operating profit	10,081	9,309	9,431
Share of results of associates	265	170	202
Share of results of joint ventures	17	34	49
Finance income	96	110	2,112
Finance costs	(6,160)	(5,767)	(3,184)
Profit before income tax	4,299	3,856	8,610
Income tax expense	(819)	(926)	(1,800)
Profit for the year	3,480	2,930	6,810
Other comprehensive income for the year
Cash flow hedges, net of tax	(110)	43	35
Fair value changes of available-for-sale investments, net of tax			115
Share of other comprehensive income of an associate, net of tax			10
Net other comprehensive income that may be reclassified to profit or loss in subsequent periods	(110)	43	160
Other comprehensive income that will not be reclassified to profit or loss in subsequent periods
Fair value changes of equity investments designated at fair value through other comprehensive income, net of tax	16	(247)
Share of other comprehensive income of an associate, net of tax	7	(24)
Actuarial gains/(losses) on the post-retirement benefit obligations, net of tax	40	(115)	124
Net other comprehensive income that will not be reclassified to profit or loss in subsequent periods	63	(386)	124
Other comprehensive income for the year, net of tax	(47)	(343)	284
Total comprehensive income for the year	3,433	2,587	7,094
Profit attributable to:
Equity holders of the Company	3,192	2,698	6,342
Non-controlling interests	288	232	468
Profit for the year	3,480	2,930	6,810
Total comprehensive income attributable to:
Equity holders of the Company	3,141	2,358	6,619
Non-controlling interests	292	229	475
Total comprehensive income for the year	¥ 3,433	¥ 2,587	¥ 7,094
Earnings per share attributable to the equity holders of the Company during the year
– Basic and diluted (RMB)	¥ 0.21	¥ 0.19	¥ 0.44

Consolidated Statement of Finan

Consolidated Statement of Financial Position - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Non-current assets
Property, plant and equipment	¥ 99,437	¥ 180,104
Investment properties	653	724
Right-of-use assets	128,704
Prepayments for land use rights		1,387
Intangible assets	11,698	11,609
Advanced payments on acquisition of aircraft	16,222	21,942
Investments in associates	1,977	1,696
Investments in joint ventures	627	577
Equity investments designated at fair value through other comprehensive income	1,274	1,247
Derivative financial instruments	27	222
Other non-current assets	3,970	3,370
Deferred tax assets	853	207
Non-current assets	265,442	223,085
Current assets
Flight equipment spare parts	2,407	1,950
Trade and notes receivables	1,717	1,436
Financial asset at fair value through profit or loss	121	96
Prepayments and other receivables	14,093	11,776
Derivative financial instruments	43	1
Restricted bank deposits and short-term bank deposits	6	16
Cash and cash equivalents	1,350	646
Assets classified as held for sale	6	11
Current assets	19,743	15,932
Current liabilities
Trade and bills payables	3,877	4,040
Contract liabilities	10,178	8,811
Other payables and accruals	22,602	21,143
Current portion of lease liabilities	15,590
Current portion of obligations under finance leases		9,364
Current portion of borrowings	25,233	29,259
Income tax payable	351	273
Current portion of provision for lease return costs for aircraft and engines	519	145
Derivative financial instruments	13	29
Current liabilities	78,363	73,064
Net current liabilities	(58,620)	(57,132)
Total assets less current liabilities	206,822	165,953
Non-current liabilities
Lease liabilities	94,685
Obligations under finance leases		68,063
Borrowings	26,604	25,867
Provision for lease return costs for aircraft and engines	6,659	2,761
Contract liabilities	1,499	1,585
Derivative financial instruments	10
Post-retirement benefit obligations	2,419	2,544
Other long-term liabilities	2,278	3,448
Deferred tax liabilities	22	84
Non-current liabilities	134,176	104,352
Net assets	72,646	61,601
Equity attributable to the equity holders of the Company
- Share capital	16,379	14,467
- Reserves	52,629	43,541
Equity attributable to the equity holders of the Company	69,008	58,008
Non-controlling interests	3,638	3,593
Total equity	¥ 72,646	¥ 61,601

Consolidated Statement of Chang

Consolidated Statement of Changes in Equity - CNY (¥) ¥ in Millions	Total	Share Capital [Member]	Other Reserves [Member]	Retained Profits [member]	Attributable to Equity Holders of the Company [Member]	Non-controlling Interests [Member]
Beginning balance at Dec. 31, 2016	¥ 52,366	¥ 14,467	¥ 26,199	¥ 8,784	¥ 49,450	¥ 2,916
Profit for the year	6,810			6,342	6,342	468
Other comprehensive income	284		277		277	7
Total comprehensive income for the year	7,094		277	6,342	6,619	475
Final 2016/2017 dividend	(709)			(709)	(709)
Disposal of a subsidiary	87					87
Dividend paid to non-controlling interests	(60)					(60)
Transfer from retained profits			212	(212)
Ending balance at Dec. 31, 2017	58,778	14,467	26,688	14,205	55,360	3,418
Effect of adoption of IFRS | Increase (decrease) due to application of IFRS 9 [member]	645		667	(22)	645
Effect of adoption of IFRS | Increase (decrease) due to application of IFRS 15 [member]	386			383	383	3
Restated balance at Dec. 31, 2017	59,809	14,467	27,355	14,566	56,388	3,421
Profit for the year	2,930			2,698	2,698	232
Other comprehensive income	(343)		(340)		(340)	(3)
Total comprehensive income for the year	2,587		(340)	2,698	2,358	229
Final 2016/2017 dividend	(738)			(738)	(738)
Dividend paid to non-controlling interests	(57)					(57)
Transfer from retained profits			30	(30)
Ending balance at Dec. 31, 2018	61,601	14,467	27,045	16,496	58,008	3,593
Effect of adoption of IFRS | Increase (decrease) due to application of IFRS 16 [member]	(1,758)	0	0	(1,595)	(1,595)	(163)
Restated balance at Dec. 31, 2018	59,843	14,467	27,045	14,901	56,413	3,430
Profit for the year	3,480			3,192	3,192	288
Other comprehensive income	(47)		(51)		(51)	4
Total comprehensive income for the year	3,433		(51)	3,192	3,141	292
Issue of shares	9,442	1,912	7,530		9,442
Dividend paid to non-controlling interests	(84)					(84)
Transfer from retained profits			212	(212)
Others	12		11	1	12
Ending balance at Dec. 31, 2019	¥ 72,646	¥ 16,379	¥ 34,747	¥ 17,882	¥ 69,008	¥ 3,638

Consolidated Statement of Cha_2

Consolidated Statement of Changes in Equity (Parenthetical) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Statement of changes in equity [abstract]
Consolidated reserves	¥ 52,629	¥ 43,541

Consolidated Statement of Cash

Consolidated Statement of Cash Flows - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Cash generated from operations	¥ 30,137	¥ 24,047	¥ 21,108
Income tax paid	(1,165)	(1,709)	(1,536)
Net cash flows from operating activities	28,972	22,338	19,572
Cash flows from investing activities
Additions to property, plant and equipment and other non-current assets	(7,589)	(26,194)	(24,689)
Advance from disposal of prepayments for land use rights			269
Investment in associates			(47)
Investment in joint ventures	(110)	(16)	(17)
(Net) proceeds from disposal of a subsidiary	(90)	(11)	1,897
Proceeds from disposal of property, plant and equipment	157	5,493	1,043
Proceeds from novation of purchase rights	2,366	7,483
Proceeds from disposal of intangible assets	2	1	1
Proceeds from disposal of an equity investment	5
Proceeds from disposal of available-for-sale investments			5
Proceeds from disposal of investment in an associate	0		12
Proceeds from disposal of prepayments for land use rights		158	3
Decrease in restricted and short-term bank deposits			3
Interest received		71	111
Dividends received	241	252	97
Settlement relating to derivative financial instruments	104	1
Loan to a joint venture		(20)
Proceeds from repayment of loans to a joint venture	15	2
Net cash flows used in investing activities	(4,899)	(12,780)	(21,312)
Cash flows from financing activities
Proceeds from issue of shares	9,442
Proceeds from draw-down of short-term bank loans	6,986	19,144	33,629
Proceeds from draw-down of long-term bank loans	300	8,000
Proceeds from issuance of short-term debentures	39,000	31,000	29,000
Proceeds from issuance of long-term debentures and bonds	7,755	2,938	2,450
Proceeds from draw-down of other financing activities	0	10,693	12,320
Repayments of short-term bank loans	(12,868)	(36,066)	(18,383)
Repayments of long-term bank loans	(4,033)	(7,592)	(3,246)
Repayments of short-term debentures	(35,000)	(26,500)	(36,000)
Repayments of long-term debentures and bonds	(5,567)
Repayments of principal of lease liabilities	(23,895)
Repayments of principal of finance lease obligations		(9,629)	(10,587)
Interest paid	(5,494)	(4,359)	(3,706)
Settlement relating to derivative financial instruments	82	(392)
Dividends paid		(738)	(709)
Dividends paid to non-controlling interests of subsidiaries	(83)	(57)	(60)
Net cash flows (used in)/from financing activities	(23,375)	(13,558)	4,708
Net increase/(decrease) in cash and cash equivalents	698	(4,000)	2,968
Cash and cash equivalents at beginning of year	646	4,616	1,695
Effect of foreign exchange rate changes, net	6	30	(47)
Cash and cash equivalents at December 31	¥ 1,350	¥ 646	¥ 4,616

Corporate and Group Information

Corporate and Group Information	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Corporate and Group Information	1 CORPORATE AND GROUP INFORMATION China Eastern Airlines Corporation Limited (the “Company”), a joint stock company limited by shares, was established in the People’s Republic of China (the “PRC”) on April 14, 1995. The address of the Company’s registered office is 66 Airport Street, Pudong International Airport, Shanghai, the PRC. The Company and its subsidiaries (together, the “Group”) are principally engaged in the operation of civil aviation, including the provision of passenger, cargo, mail delivery, tour operations and other extended transportation services. In the opinion of the directors, the holding company and ultimate holding company of the Company is China Eastern Air Holding Company Limited (“CEA Holding”), formerly named as China Eastern Air Holding Company, a state-owned enterprise established in the PRC. The A shares, H shares and American Depositary Shares are listed on the Shanghai Stock Exchange, The Stock Exchange of Hong Kong Limited and The New York Stock Exchange, respectively. These financial statements were approved and authorized for issue by the Company’s Board of Directors (the “Board”) on April 29, 2020. Information about subsidiaries Particulars of the Company’s principal subsidiaries at the end of the reporting period are as follows: Name Place and date of Issued ordinary/ registered share Percentage of place of business capital Direct Indirect Principal activities million China Eastern Airlines Jiangsu Co., Ltd. (“CEA Jiangsu”) PRC/Mainland China April 7, 1993 RMB2,000 62.56 % — Provision of airline services China Eastern Airlines Wuhan Co., Ltd. (“CEA Wuhan”) PRC/Mainland China August 16, 2002 RMB1,750 60 % — Provision of airline services Shanghai Eastern Flight Training Co., Ltd. (“Shanghai Flight Training”) PRC/Mainland China December 18, 1995 RMB694 100 % — Provision of flight training services Shanghai Airlines Co., Ltd. (“Shanghai Airlines”) PRC/Mainland China March 16, 2010 RMB500 100 % — Provision of airline services China Eastern Airlines Technology Co., Ltd. (“Eastern Technology”) PRC/Mainland China November 19, 2014 RMB4,300 100 % — Provision of airline maintenance services One two three Airlines Co., Ltd. (“OTT Airlines”) (Originally named Eastern Business Airlines Co., Ltd.) PRC/Mainland China September 27, 2008 RMB1,500 100 % — Provision of business aviation services China Eastern Airlines Yunnan Co., Ltd. (“CEA Yunnan”) PRC/Mainland China August 2, 2011 RMB3,662 90.36 % — Provision of airline services Eastern Air Overseas (Hong Kong) Co., Ltd. (“Eastern Air Overseas”) Hong Kong June 10, 2011 HKD280 100 % — Provision of import and export, investment, leasing and consultation services China United Airlines Co., Ltd. (“China United Airlines”) PRC/Mainland China September 21, 1984 RMB1,320 100 % — Provision of airline services Eastern Airlines Hotel Co., Ltd. PRC/Mainland China March 18, 1998 RMB70 100 % — Provision of hotel services primarily to crew China Eastern Airlines Application Development Center Co., Ltd. (“Application Development Center”) PRC/Mainland China November 21, 2011 RMB498 100 % — Provision of research and development of technology and products in the field of aviation China Eastern Airlines E-Commerce Co., Ltd. (“Eastern E-Commerce”) PRC/Mainland China December 1, 2014 RMB50 100 % — E-commerce platform and ticket agent The above table lists the subsidiaries of the Company which, in the opinion of the directors, principally affected the results for the year or formed a substantial portion of the net assets of the Group. To give details of other subsidiaries would, in the opinion of the directors, result in particulars of excessive length. All of the subsidiaries of the Company listed above are limited liability companies.

Basis of Preparation

Basis of Preparation	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Basis of Preparation	2.1 BASIS OF PREPARATION These financial statements have been prepared in accordance with all applicable International Financial Reporting Standards (“IFRSs”) issued by the International Accounting Standards Board (“IASB”) and the disclosure requirements of the Hong Kong Companies Ordinance. They have been prepared under the historical cost convention, except for certain equity investments and derivative financial instruments which have been measured at fair value. Disposal groups held for sale are stated at the lower of their carrying amounts and fair values less costs to sell as further explained in Note 2.4. These financial statements are presented in Renminbi (“RMB”) and all values are rounded to the nearest million except when otherwise indicated. Basis of consolidation The consolidated financial statements include the financial statements of the Company and its subsidiaries for the year ended December 31, 2019. A subsidiary is an entity (including a structured entity), directly or indirectly, controlled by the Company. Control is achieved when the Group is exposed, or has rights, to variable returns from its involvement with the investee and has the ability to affect those returns through its power over the investee (i.e., existing rights that give the Group the current ability to direct the relevant activities of the investee). When the Company has, directly or indirectly, less than a majority of the voting or similar rights of an investee, the Group considers all relevant facts and circumstances in assessing whether it has power over an investee, including: (a) the contractual arrangement with the other vote holders of the investee; (b) rights arising from other contractual arrangements; and (c) the Group’s voting rights and potential voting rights. The financial statements of the subsidiaries are prepared for the same reporting period as the Company, using consistent accounting policies. The results of subsidiaries are consolidated from the date on which the Group obtains control, and continue to be consolidated until the date that such control ceases. Profit or loss and each component of other comprehensive income are attributed to the owners of the parent of the Group and to the non-controlling non-controlling The Group reassesses whether or not it controls an investee if facts and circumstances indicate that there are changes to one or more of the three elements of control described above. A change in the ownership interest of a subsidiary, without a loss of control, is accounted for as an equity transaction. If the Group loses control over a subsidiary, it derecognizes (i) the assets (including goodwill) and liabilities of the subsidiary, (ii) the carrying amount of any non-controlling Going concern As at December 31, 2019, the Group’s current liabilities exceeded its current assets by approximately RMB58.62 billion. In preparing the financial statements, the Board has conducted a detailed review over the Group’s going concern ability based on the current financial situation. The Board has considered the Group’s available sources of funds as follows: • Unutilized banking facilities of approximately RMB50.06 billion as at December 31, 2019; • Other available sources of financing from banks and other financial institutions given the Group’s credit history; and • The Group’s expected net cash inflows from operating activities in 2020. The Board considers that the Group will be able to obtain sufficient financing to enable it to operate, as well as to meet its liabilities as and when they become due, and the capital expenditure requirements for the upcoming twelve months. Accordingly, the Board believes that it is appropriate to prepare these financial statements on a going concern basis without including any adjustments that would be required should the Company and the Group fail to continue as a going concern.

Changes in Accounting Policies

Changes in Accounting Policies and Disclosures	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Changes in Accounting Policies and Disclosures	2.2 CHANGES IN ACCOUNTING POLICIES AND DISCLOSURES The Group has adopted the following new and revised IFRSs for the first time for the current year’s financial statements. Amendments to IFRS 9 Prepayment Features with Negative Compensation IFRS 16 Leases Amendments to IAS 19 Plan Amendment, Curtailment or Settlement Amendments to IAS 28 Long-term Interests in Associates and Joint Ventures IFRIC 23 Uncertainty over Income Tax Treatments Annual Improve ments Amendments to IFRS 3, IFRS 11, IAS 12 and IAS 23 2015-2017 Cycle Other than as explained below regarding the impact of IFRS 16 and IFRIC 23, the adoption of the above new and revised standards has had no significant financial effect on these financial statements. (a) IFRS 16 replaces IAS 17 Leases Determining whether an Arrangement contains a Lease SIC-15 Operating Leases-Incentives SIC-27 Evaluating the Substance of Transactions Involving the Legal Form of a Lease. on-balance right-of-use For a sublease arrangement, the classification of the sublease is made by reference to the right-of-use asset arising from the head lease, instead of by reference to the underlying asset. The Group has adopted IFRS 16 using the modified retrospective method with the date of initial application of January 1, 2019. Under this method, the standard has been applied retrospectively with the cumulative effect of initial adoption recognized as an adjustment to the opening balance of retained profits at January 1, 2019, and the comparative information for 2018 was not restated and continued to be reported under IAS 17 and related interpretations. New definition of a lease Under IFRS 16, a contract is, or contains, a lease if the contract conveys a right to control the use of an identified asset for a period of time in exchange for consideration. Control is conveyed where the customer has both the right to obtain substantially all of the economic benefits from use of the identified asset and the right to direct the use of the identified asset. The Group elected to use the transition practical expedient allowing the standard to be applied only to contracts that were previously identified as leases applying IAS 17 and IFRIC 4 at the date of initial application. Contracts that were not identified as leases under IAS 17 and IFRIC 4 were not reassessed. Therefore, the definition of a lease under IFRS 16 has been applied only to contracts entered into or changed on or after January 1, 2019. As a lessee – Leases previously classified as operating leases Nature of the effect of adoption of IFRS 16 The Group has lease contracts for various items of aircraft, engines, buildings and other equipment. As a lessee, the Group previously classified leases as either finance leases or operating leases based on the assessment of whether the lease transferred substantially all the rewards and risks of ownership of assets to the Group. Under IFRS 16, the Group applies a single approach to recognize and measure right-of-use low-value lease-by-lease right-of-use Impact on transition Lease liabilities at January 1, 2019 were recognized based on the present value of the remaining lease payments, discounted using the incremental borrowing rate at January 1, 2019 and included in lease liabilities For aircraft and engine leases, the right-of-use right-of-use All these assets were assessed for any impairment based on IAS 36 on that date. The Group elected to present the right-of-use The Group has used the following elective practical expedients when applying IFRS 16 at January 1, 2019: • Applying the short-term lease exemptions to leases with a lease term that ends within 12 months from the date of initial application • Using hindsight in determining the lease term where the contract contains options to extend/terminate the lease • Applying a single discount rate to a portfolio of leases with reasonably similar characteristics • Relying on the entity’s assessment of whether leases were onerous by applying IAS 37 immediately before January 1, 2019 as an alternative to performing an impairment review • Excluding initial direct costs from the measurement of the right-of-use As a lessee – Leases previously classified as finance leases The Group did not change the initial carrying amounts of recognized assets and liabilities at the date of initial application for leases previously classified as finance leases. Accordingly, the carrying amounts of the right-of-use Financial impact at January 1, 2019 The impacts arising from the adoption of IFRS 16 at January 1, 2019 was as follows: Increase/(decrease) RMB million Assets Increase in right-of-use 128,312 Decrease in property, plant and equipment (94,416 ) Decrease in prepayments for land use rights (1,387 ) Decrease in prepayments and other receivables (403 ) Increase in deferred tax assets 470 Increase in total assets 32,576 Liabilities Increase in lease liabilities 109,306 Increase in provision for lease return costs for aircraft and engines 3,654 Decrease in obligations under finance leases (77,427 ) Decrease in other long-term liabilities (1,115 ) Decrease in deferred tax liabilities (84 ) Increase in total liabilities 34,334 Decrease in retained profits (1,595 ) Decrease in non-controlling (163 ) The lease liabilities as at January 1, 2019 reconciled to the operating lease commitments as at December 31, 2018 are as follows: RMB million Operating lease commitments as at December 31, 2018 37,278 Less: Commitments relating to short-term leases and those leases with a remaining lease term ended on or before December 31, 2019 (206 ) Commitments relating to leases of low-value (1 ) 37,071 Weighted average incremental borrowing rate as at January 1, 2019 4.09 % Discounted operating lease commitments as at January 1, 2019 31,879 Add: Obligations under finance leases recognized as at December 31, 2018 77,427 Lease liabilities as at January 1, 2019 109,306 (b) IFRIC 23 addresses the accounting for income taxes (current and deferred) when tax treatments involve uncertainty that affects the application of IAS 12 (often referred to as “uncertain tax positions”). The interpretation does not apply to taxes or levies outside the scope of IAS 12, nor does it specifically include requirements relating to interest and penalties associated with uncertain tax treatments. The interpretation specifically addresses (i) whether an entity considers uncertain tax treatments separately; (ii) the assumptions an entity makes about the examination of tax treatments by taxation authorities; (iii) how an entity determines taxable profits or tax losses, tax bases, unused tax losses, unused tax credits and tax rates; and (iv) how an entity considers changes in facts and circumstances. Upon adoption of the interpretation, the Group considered whether it has any uncertain tax positions arising from the transfer pricing on its intergroup sales. Based on the Group’s tax compliance and transfer pricing study, the Group determined that it is probable that its transfer pricing policy will be accepted by the tax authorities. Accordingly, the interpretation did not have any impact on the financial position or performance of the Group.

Issued but not yet Effective In

Issued but not yet Effective International Financial Reporting Standards	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Issued but not yet Effective International Financial Reporting Standards	2.3 ISSUED BUT NOT YET EFFECTIVE INTERNATIONAL FINANCIAL REPORTING STANDARDS The Group has not applied the following new and revised IFRSs, that have been issued but are not yet effective, in these financial statements. Amendments to IFRS 3 Definition of a Business 1 Amendments to IFRS 9, IAS 39 and IFRS 7 Interest Rate Benchmark Reform 1 Amendments to IFRS 10 and IAS 28 Sale or Contribution of Assets between an Investor and its Associate or Joint Venture 3 IFRS 17 Insurance Contracts 2 Amendments to IAS 1 and IAS 8 Definition of Material 1 1 Effective for annual periods beginning on or after January 1, 2020 2 Effective for annual periods beginning on or after January 1, 2021 3 No mandatory effective date yet determined but available for adoption Further information about these IFRSs that are expected to be applicable to the Group is described below: Amendments to IFRS 3 clarify and provide additional guidance on the definition of a business. The amendments clarify that for an integrated set of activities and assets to be considered a business, it must include, at a minimum, an input and a substantive process that together significantly contribute to the ability to create output. A business can exist without including all of the inputs and processes needed to create outputs. The amendments remove the assessment of whether market participants are capable of acquiring the business and continue to produce outputs. Instead, the focus is on whether acquired inputs and acquired substantive processes together significantly contribute to the ability to create outputs. The amendments have also narrowed the definition of outputs to focus on goods or services provided to customers, investment income or other income from ordinary activities. Furthermore, the amendments provide guidance to assess whether an acquired process is substantive and introduce an optional fair value concentration test to permit a simplified assessment of whether an acquired set of activities and assets is not a business. The Group expects to adopt the amendments prospectively from January 1, 2020. Since the amendments apply prospectively to transactions or other events that occur on or after the date of first application, the Group will not be affected by these amendments on the date of transition. Amendments to IFRS 9, IAS 39 and IFRS 7 address the effects of interbank offered rate reform on financial reporting. The amendments provide temporary reliefs which enable hedge accounting to continue during the period of uncertainty before the replacement of an existing interest rate benchmark. In addition, the amendments require companies to provide additional information to investors about their hedging relationships which are directly affected by these uncertainties. The amendments are effective for annual periods beginning on or after January 1, 2020. Early application is permitted. The amendments are not expected to have any significant impact on the Group’s financial statements. Amendments to IFRS 10 and IAS 28 address an inconsistency between the requirements in IFRS 10 and in IAS 28 in dealing with the sale or contribution of assets between an investor and its associate or joint venture. The amendments require a full recognition of a gain or loss when the sale or contribution of assets between an investor and its associate or joint venture constitutes a business. For a transaction involving assets that do not constitute a business, a gain or loss resulting from the transaction is recognized in the investor’s profit or loss only to the extent of the unrelated investor’s interest in that associate or joint venture. The amendments are to be applied prospectively. The IASB has deferred the effective date of these amendments indefinitely, but an entity that early adopts the amendments must apply them prospectively. The Group will apply these amendments when they become effective. Amendments to IAS 1 and IAS 8 provide a new definition of material. The new definition states that information is material if omitting, misstating or obscuring it could reasonably be expected to influence decisions that the primary users of general purpose financial statements make on the basis of those financial statements. The amendments clarify that materiality will depend on the nature or magnitude of information. A misstatement of information is material if it could reasonably be expected to influence decisions made by the primary users. The Group expects to adopt the amendments prospectively from January 1, 2020. The amendments are not expected to have any significant impact on the Group’s financial statements.

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2019
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Summary of Significant Accounting Policies	2.4 SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The Group initial applied IFRS 9 Financial Instruments Revenue from Contracts with Customers Leases Segmental reporting Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision-maker (“CODM”). The CODM, who is responsible for allocating resources and assessing performance of the operating segments, has been identified as the office of the General Manager that makes strategic decisions. Investments in associates and joint ventures An associate is an entity in which the Group has a long-term interest of generally not less than 20% of the equity voting rights and over which it is in a position to exercise significant influence. Significant influence is the power to participate in the financial and operating policy decisions of the investee, but is not control or joint control over those policies. A joint venture is a type of joint arrangement whereby the parties that have joint control of the arrangement have rights to the net assets of the joint venture. Joint control is the contractually agreed sharing of control of an arrangement, which exists only when decisions about the relevant activities require the unanimous consent of the parties sharing control. The Group’s investments in associates and joint ventures are stated in the consolidated statement of financial position at the Group’s share of net assets under the equity method of accounting, less any impairment losses. Adjustments are made to bring into line any dissimilar accounting policies that may exist. The Group’s share of the post-acquisition results and other comprehensive income of associates and joint ventures is included in the consolidated statement of profit or loss and other comprehensive income. In addition, when there has been a change recognized directly in the equity of the associate or joint venture, the Group recognizes its share of any changes, when applicable, in the consolidated statement of changes in equity. Unrealized gains and losses resulting from transactions between the Group and its associates or joint ventures are eliminated to the extent of the Group’s investments in the associates or joint ventures, except where unrealized losses provide evidence of an impairment of the asset transferred. Goodwill arising from the acquisition of associates or joint ventures is included as part of the Group’s investments in associates or joint ventures. If an investment in an associate becomes an investment in a joint venture or vice versa, the retained interest is not remeasured. Instead, the investment continues to be accounted for under the equity method. In all other cases, upon loss of significant influence over the associate or joint control over the joint venture, the Group measures and recognizes any retained investment at its fair value. Any difference between the carrying amount of the associate or joint venture upon loss of significant influence or joint control and the fair value of the retained investment and proceeds from disposal is recognized in profit or loss. When an investment in an associate or a joint venture is classified as held for sale, it is accounted for in accordance with IFRS 5 Non-current Foreign currencies (i) Functional currency Items included in the financial statements of each of the Group’s entities are measured using the currency of the primary economic environment in which the entity operates (the “functional currency”). The financial statements are presented in “RMB”, which is the Company’s functional currency. (ii) Transactions and balances Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of the transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the translation at year-end Foreign exchange gains and losses that relate to borrowings and cash and cash equivalents are presented in profit or loss within “finance income” or “finance costs”. Revenue recognition (applicable from January 1, 2018) Revenue from contracts with customers Revenue from contracts with customers is recognized when control of goods or services is transferred to the customers at an amount that reflects the consideration to which the Group expects to be entitled in exchange for those goods or services. When the consideration in a contract includes a variable amount, the amount of consideration is estimated to which the Group will be entitled in exchange for transferring the goods or services to the customer. The variable consideration is estimated at contract inception and constrained until it is highly probable that a significant revenue reversal in the amount of cumulative revenue recognized will not occur when the associated uncertainty with the variable consideration is subsequently resolved. When the contract contains a financing component which provides the customer with a significant benefit of financing the transfer of goods or services to the customer for more than one year, revenue is measured at the present value of the amount receivable, discounted using the discount rate that would be reflected in a separate financing transaction between the Group and the customer at contract inception. When the contract contains a financing component which provides the Group with a significant financial benefit for more than one year, revenue recognized under the contract includes the interest expense accreted on the contract liability under the effective interest method. For a contract where the period between the payment by the customer and the transfer of the promised goods or services is one year or less, the transaction price is not adjusted for the effects of a significant financing component, using the practical expedient in IFRS 15. (a) Passenger, cargo and mail revenues are recognized as traffic revenue when the transportation is provided or when ticket breakage occurs. The value of sold but unused tickets is included in contract liabilities as sales in advance of carriage (“SIAC”). The Group estimates the value of passenger ticket breakage based on historical trends and experience and recognizes revenue at the scheduled flight date. (b) Revenues from the provision of ground services, tour services, ticket cancellation services and other travel related services are recognized when the services are rendered. (c) Commission income represents amounts earned from other carriers in respect of sales made by the Group on their behalf, and is recognized upon ticket sales. (d) The Group operates a frequent flyer program called “Eastern Miles” that issues mileage points to program members based on accumulated mileage. The Group defers a portion of passenger revenue attributable to the mileage points issued based on the relative standalone selling price approach and recognizes revenue when the mileage points are redeemed and performance obligations are fulfilled or the mileage points expire unused. The standalone selling price of the mileage points was estimated based on the historical prices of equivalent flights and goods provided for mileage points redeemed and was adjusted for mileage points that are not expected to be redeemed (“mileage points breakage”). (e) Revenue from the sale of goods is recognized at the point in time when control of the asset is transferred to the customer. Revenue from other sources Rental income is recognized on a time proportion basis over the lease terms. Variable lease payments that do not depend on an index or a rate are recognized as income in the accounting period in which they are incurred. Other income Interest income is recognized on an accrual basis using the effective interest method by applying the rate that exactly discounts the estimated future cash receipts over the expected life of the financial instrument or a shorter period, when appropriate, to the net carrying amount of the financial asset. Dividend income is recognized when the shareholders’ right to receive payment has been established, it is probable that the economic benefits associated with the dividend will flow to the Group and the amount of the dividend can be measured reliably. Contract liabilities (applicable from January 1, 2018) A contract liability is recognized when a payment is received or a payment is due (whichever is earlier) from a customer before the Group transfers the related goods or services. Contract liabilities are recognized as revenue when the Group performs under the contract (i.e., transfers control of the related goods or services to the customer). Revenue recognition (applicable before January 1, 2018) Revenue comprises the fair value of the consideration received or receivable for the provision of services and the sale of goods in the ordinary course of the Group’s activities. Revenue is stated net of business taxes or value-added taxes, returns, rebates and discounts and after eliminating sales within the Group. Revenue is recognized when it is probable that the economic benefits will flow to the Group and when the revenue can be measured reliably, on the following basis: (i) Traffic revenues Passenger, cargo and mail revenues are recognized as traffic revenues when the transportation services are provided. The value of sold but unused tickets is recognized as sales in advance of carriage (“SIAC”). (ii) Ground service income and tour operation revenues Revenues from the provision of ground services, tour, travel services and other travel related services are recognized when the services are rendered. (iii) Cargo handling income Revenues from the provision of cargo handling services are recognized when the services are rendered. (iv) Commission income Commission income represents amounts earned from other carriers in respect of sales made by the Group on their behalf, and is recognized in profit or loss upon ticket sales. (v) Other revenue Revenues from other operating businesses, including income derived from the provision of freight forwarding, are recognized when the services are rendered. (vi) Frequent flyer program The Group operates a frequent flyer program that provide travel awards to program members based on accumulated miles. A portion of passenger revenue attributable to the award of frequent flyer benefits is deferred and recognized when the miles have been redeemed or have expired. (vii) Interest income Interest income is recognized on a time-proportion basis using the effective interest rate method. The amount of revenue is not considered to be reliably measurable until all contingencies relating to the sales have been resolved. The Group bases its estimates on historical results, taking into consideration the type of customer, the type of transaction and the specifics of each arrangement. Government grants Grants from the government are recognized at their fair value where there is a reasonable assurance that the grant will be received and the Group will comply with all attached conditions. When the grant relates to an expense item, it is recognized as income on a systematic basis over the periods that the costs, which it is intended to compensate are expensed. Where the grant relates to an asset, the fair value is credited to a deferred income account and is released to profit or loss over the expected useful life of the relevant asset by equal annual instalments. Maintenance and overhaul costs Overhaul costs that meet specific recognition criteria are capitalized as a component of property, plant and equipment or right-of-use assets and are depreciated over the appropriate maintenance cycles. Certain lease arrangements contain provisions that the Group has obligations to fulfill certain return conditions at the end of lease term. The Group estimated lease return costs for aircraft and engines and recognized such costs as part of the right-of-use asset and are depreciated during the lease term (applicable from January 1, 2019). Provision for the estimated leas return costs for aircraft and engines is made on a straight-line basis over the lease term (applicable before January 1, 2019). All other repairs and maintenance costs are charged to profit or loss as and when incurred. Borrowing costs Borrowing costs directly attributable to the acquisition, construction or production of qualifying assets, i.e., assets that necessarily take a substantial period of time to get ready for their intended use or sale, are capitalized as part of the cost of those assets. The capitalization of such borrowing costs ceases when the assets are substantially ready for their intended use or sale. Investment income earned on the temporary investment of specific borrowings pending their expenditure on qualifying assets is deducted from the borrowing costs capitalized. All other borrowing costs are expensed in the period in which they are incurred. Borrowing costs consist of interest and other costs that an entity incurs in connection with the borrowing of funds. Income tax Income tax comprises current and deferred tax. Income tax relating to items recognized outside profit or loss is recognized outside profit or loss, either in other comprehensive income or directly in equity. Current tax assets and liabilities are measured at the amount expected to be recovered from or paid to the taxation authorities, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period, taking into consideration interpretations and practices prevailing in the countries in which the Group operates. Deferred tax is provided, using the liability method, on all temporary differences at the end of the reporting period between the tax bases of assets and liabilities and their carrying amounts for financial reporting purposes. Deferred tax liabilities are recognized for all taxable temporary differences, except: • when the deferred tax liability arises from the initial recognition of goodwill or an asset or liability in a transaction that is not a business combination and, at the time of the transaction, affects neither the accounting profit nor taxable profit or loss; and • in respect of taxable temporary differences associated with investments in subsidiaries, associates and joint ventures, when the timing of the reversal of the temporary differences can be controlled and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred tax assets are recognized for all deductible temporary differences, and the carryforward of unused tax credits and any unused tax losses. Deferred tax assets are recognized to the extent that it is probable that taxable profit will be available against which the deductible temporary differences, the carryforward of unused tax credits and unused tax losses can be utilized, except: • when the deferred tax asset relating to the deductible temporary differences arises from the initial recognition of an asset or liability in a transaction that is not a business combination and, at the time of the transaction, affects neither the accounting profit nor taxable profit or loss; and • in respect of deductible temporary differences associated with investments in subsidiaries, associates and joint ventures, deferred tax assets are only recognized to the extent that it is probable that the temporary differences will reverse in the foreseeable future and taxable profit will be available against which the temporary differences can be utilized. The carrying amount of deferred tax assets is reviewed at the end of each reporting period and reduced to the extent that it is no longer probable that sufficient taxable profit will be available to allow all or part of the deferred tax asset to be utilized. Unrecognized deferred tax assets are reassessed at the end of each reporting period and are recognized to the extent that it has become probable that sufficient taxable profit will be available to allow all or part of the deferred tax asset to be recovered. Deferred tax assets and liabilities are measured at the tax rates that are expected to apply to the period when the asset is realized or the liability is settled, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period. Deferred tax assets and deferred tax liabilities are offset if and only if the Group has a legally enforceable right to set off current tax assets and current tax liabilities and the deferred tax assets and deferred tax liabilities relate to income taxes levied by the same taxation authority on either the same taxable entity or different taxable entities which intend either to settle current tax liabilities and assets on a net basis, or to realize the assets and settle the liabilities simultaneously, in each future period in which significant amounts of deferred tax liabilities or assets are expected to be settled or recovered. Business combinations and goodwill Business combinations not under common control are accounted for using the acquisition method. The consideration transferred is measured at the acquisition date fair value which is the sum of the acquisition date fair values of assets transferred by the Group, liabilities assumed by the Group to the former owners of the acquiree and the equity interests issued by the Group in exchange for control of the acquiree. For each business combination, the Group elects whether to measure the non-controlling interests in the acquiree that are present ownership interests and entitle their holders to a proportionate share of net assets in the event of liquidation at fair value or at the proportionate share of the acquiree’s identifiable net assets. All other components of non-controlling interests are measured at fair value. Acquisition-related costs are expensed as incurred. When the Group acquires a business, it assesses the financial assets and liabilities assumed for appropriate classification and designation in accordance with the contractual terms, economic circumstances and pertinent conditions as at the acquisition date. This includes the separation of embedded derivatives in host contracts of the acquiree. If the business combination is achieved in stages, the previously held equity interest is remeasured at its acquisition date fair value and any resulting gain or loss is recognized in profit or loss. Any contingent consideration to be transferred by the acquirer is recognized at fair value at the acquisition date. Contingent consideration classified as an asset or liability is measured at fair value with changes in fair value recognized in profit or loss. Contingent consideration that is classified as equity is not remeasured and subsequent settlement is accounted for within equity. Goodwill is initially measured at cost, being the excess of the aggregate of the consideration transferred, the amount recognized for non-controlling interests and any fair value of the Group’s previously held equity interests in the acquiree over the identifiable net assets acquired and liabilities assumed. If the sum of this consideration and other items is lower than the fair value of the net assets acquired, the difference is, after reassessment, recognized in profit or loss as a gain on bargain purchase. After initial recognition, goodwill is measured at cost less any accumulated impairment losses. Goodwill is tested for impairment annually or more frequently if events or changes in circumstances indicate that the carrying value may be impaired. The Group performs its annual impairment test of goodwill as at December 31. For the purpose of impairment testing, goodwill acquired in a business combination is, from the acquisition date, allocated to each of the Group’s cash-generating units, or groups of cash-generating units, that are expected to benefit from the synergies of the combination, irrespective of whether other assets or liabilities of the Group are assigned to those units or groups of units. Impairment is determined by assessing the recoverable amount of the cash-generating unit (group of cash-generating units) to which the goodwill relates. Where the recoverable amount of the cash-generating unit (group of cash-generating units) is less than the carrying amount, an impairment loss is recognized. An impairment loss recognized for goodwill is not reversed in a subsequent period. Where goodwill has been allocated to a cash-generating unit (or group of cash-generating units) and part of the operation within that unit is disposed of, the goodwill associated with the operation disposed of is included in the carrying amount of the operation when determining the gain or loss on the disposal. Goodwill disposed of in these circumstances is measured based on the relative value of the operation disposed of and the portion of the cash-generating unit retained. Intangible assets (other than goodwill) (i) Computer software costs Acquired computer software licenses are capitalized on the basis of the costs incurred to acquire and bring to use the specific software. These costs are amortized using the straight-line method over their estimated useful lives of 5 years. Costs associated with developing or maintaining computer software programs are recognized as expenses when incurred. (ii) Others Others relate to the capitalized costs incurred to acquire the use right of certain flight schedules (i.e. timeslots for flights’ taking off/landing) in Guangzhou Baiyun International Airport Co., Ltd. and Shanghai Pudong International Airport, respectively. These costs are amortized using the straight-line method over their useful lives of 3 years. Deferred pilot recruitment costs Deferred pilot recruitment costs represent the costs borne by the Group in connection with securing a certain minimum period of employment of pilots and are amortized on a straight-line basis over the anticipated beneficial period of 5 years, starting from the date the pilot joins the Group. Related parties A party is considered to be related to the Group if: (a) the party is a person or a close member of that person’s family and that person: (i) has control or joint control over the Group; (ii) has significant influence over the Group; or (iii) is a member of the key management personnel of the Group or of a parent of the Group; or (b) the party is an entity where any of the following conditions applies: (i) the entity and the Group are members of the same group; (ii) one entity is an associate or joint venture of the other entity (or of a parent, subsidiary or fellow subsidiary of the other entity); (iii) the entity and the Group are joint ventures of the same third party; (iv) one entity is a joint venture of a third entity and the other entity is an associate of the third entity; (v) the entity is a post-employment benefit plan for the benefit of employees of either the Group or an entity related to the Group and the sponsoring employers of the post-employment benefit plan; (vi) the entity is controlled or jointly controlled by a person identified in (a); (vii) a person identified in (a)(i) has significant influence over the entity or is a member of the key management personnel of the entity (or of a parent of the entity); and (viii) the entity, or any member of a group of which it is a part, provides key management personnel services to the Group or to the parent of the Group. Property, plant and equipment Property, plant and equipment, other than construction in progress, are stated at cost less accumulated depreciation and any impairment losses. When an item of property, plant and equipment is classified as held for sale or when it is part of a disposal group classified as held for sale, it is not depreciated and is accounted for in accordance with IFRS 5, as further explained in the accounting policy for “Non-current When each major aircraft overhaul is performed, its cost is recognized in the carrying amount of the item of property, plant and equipment and is depreciated over the appropriate maintenance cycles. Components related to airframe overhaul cost, are depreciated on a straight-line basis over 5 to 7.5 years. Components related to engine overhaul costs, are depreciated between each overhaul period using the ratio of actual flying hours and estimated flying hours between overhauls. Upon completion of an overhaul, any remaining carrying amount of the cost of the previous overhaul is derecognized and charged to profit or loss. Except for components related to overhaul costs, the depreciation method of which has been described in the preceding paragraph, other depreciation of property, plant and equipment is calculated using the straight-line method to write off their costs to their residual values over their estimated useful lives, as follows: Owned aircraft and engines 15 to 20 years Other flight equipment, including rotables 10 years Buildings 8 to 45 years Other property, plant and equipment 3 to 20 years Where parts of an item of property, plant and equipment have different useful lives, the cost of that item is allocated on a reasonable basis among the parts and each part is depreciated separately. Residual values, useful lives and the depreciation method are reviewed, and adjusted if appropriate, at least at each financial year end. An item of property, plant and equipment including any significant part initially recognized is derecognized upon disposal or when no future economic benefits are expected from its use or disposal. Any gain or loss on disposal or retirement recognized in the statement of profit or loss in the year the asset is derecognized is the difference between the net sales proceeds and the carrying amount of the relevant asset. Construction in progress represents a building under construction, which is stated at cost less any impairment losses, and is not depreciated. Cost comprises the direct costs of construction and capitalized borrowing costs on related borrowed funds during the period of construction. Construction in progress is reclassified to the appropriate category of property, plant and equipment when completed and ready for use. Investment properties Investment properties are interests in land and buildings held to earn rental income and/or for capital appreciation, rather than for use in the production or supply of goods or services or for administrative purposes; or for sale in the ordinary course of business. Such properties are measured initially at cost, including transaction costs. After initial recognition, the Group chooses the cost model to measure all of its investment properties. Depreciation is calculated on the straight-line basis to write off the cost to its residual value over its estimated useful life. The estimated useful lives are as follows: Buildings 30 to 35 years The carrying amounts of investment properties measured using the cost method are reviewed for impairment when events or changes in circumstances indicate that the carrying amounts may not be recoverable. Any gains or losses on the retirement or disposal of an investment property are recognized in profit or loss in the year of the retirement or disposal. Impairment of non-financial Where an indication of impairment exists, or when annual impairment testing for an asset is required (other than inventories, contract assets, deferred tax assets, financial assets, investment properties and non-current An impairment loss is recognized only if the carrying amount of an asset exceeds its recoverable amount. In assessing value in use, the estimated future cash flows are discounted to their present value using a pre-tax An assessment is made at the end of each reporting period as to whether there is an indication that previously recognized impairment losses may no longer exist or may have decreased. If such an indication exists, the recoverable amount is estimated. A previously recognized impairment loss of an asset other than goodwill is reversed only if there has been a change in the estimates used to determine the recoverable amount of that asset, but not to an amount higher than the carrying amount that would have been determined (net of any depreciation/amortization) had no impairment loss been recognized for the asset in prior years. A reversal of such an impairment loss is credited to profit or loss in the period in which it arises, unless the asset is carried at a revalued amount, in which case the reversal of the impairment loss is accounted for in accordance with the relevant accounting policy for that revalued asset. Non-current Non-current non-controlling Non-current Prepayments for land use rights (applicable before January 1, 2019) Prepayments for land use rights under operating leases are initially stated at cost and subsequently recognized on the straight-line basis over the lease terms. Advanced payments on acquisition of aircraft Advanced payments on acquisition of aircraft represent payments to aircraft manufacturers to secure deliveries of aircraft in future years, including attributable borrowing costs, and are included in non-current Flight equipment spare parts Flight equipment spare parts are stated at the lower of cost and net realizable value. Cost is determined using the weighted average method. The cost of flight equipment spare parts comprises the purchase price (net of discounts), freight charges, duty and other miscellaneous charges. Net realizable value is the estimated selling price of the flight equipment spare parts in the ordinary course of business, less applicable selling expenses. Investments and other financial assets (policies under IFRS 9 applicable from January 1, 2018) Initial recognition and measurement Financial assets are classified, at initial recognition, as subsequently measured at amortized cost, fair value through other comprehensive income, and fair value through profit or loss. The classification of financial assets at initial recognition depends on the financial asset’s contractual cash flow characteristics and the Group’s business model for managing them. With the exception of trade receivables that do not contain a significant financing component or for which the Group has applied the practical expedient of not adjusting the effect of a significant financing component, the Group initially measures a financial asset at its fair value, plus in the case of a financial asset not at fair value through profit or loss, transaction costs. Trade receivables that do not contain a significant financing component or for which the Group has applied the practical expedient are measured at the transaction price determined under IFRS 15 in accordance with the policies set out for “Revenue recognition” (applicable from January 1, 2018). In order for a financial asset to be classified and measured at amortized cost or fair value through other comprehensive income, it needs to give rise to cash flows that are solely payments of principal and interest (“SPPI”) on the principal amount outstanding. Financial assets with cash flows that are not SPPI are classified and measured at fair value through profit or loss, irrespective of the business model. The Group’s business model for managing financial assets refers to how it manages its financial assets in order to generate cash flows. The business model determines whether cash flows will result from collecting contractual cash flows, selling the financial assets, or both. Financial assets classified and measured at amortized cost are held within a business model with the objective to hold financial assets in order to collect contractual cash flows, while financial assets classified and measured at fair value through other comprehensive income are held within a business model with the objective of both holding to collect contractual cash flows and selling. Financial assets which are not held within the aforementioned business models are classified and measured at fair value through profit or loss. All regular way purchases and sales of financial assets are recognized on the trade date, that is, the date that the Group commits to purchase or sell the asset. Regular way purchases or sales are purchases or sales of financial assets that require delivery of assets within the period generally established by regulation or convention in the marketplace. Subsequent measurement The subsequent measurement of financial assets depends on their classification as follows: Financial assets at amortized cost (debt instruments) Financial assets at amortized cost are subsequently measured using the effective interest method and are subject to impairment. Gains and losses are recognized in the statement of profit or los

Significant Accounting Judgemen

Significant Accounting Judgements and Estimates	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Significant Accounting Judgements and Estimates	3 SIGNIFICANT ACCOUNTING JUDGEMENTS AND ESTIMATES Estimates and judgements used in preparing the financial statements are continually evaluated and are based on historical experience and other factors, including expectations of future events that are believed to be reasonable under the circumstances. The Group makes estimates and assumptions concerning the future. The resulting accounting estimates will, by definition, seldom equal the related actual results. The estimates and assumptions that have a significant risk of causing a material adjustment to the carrying amounts of assets and liabilities within the next financial year are discussed below. (a) Passenger ticket breakage The Group recognizes traffic revenues in accordance with the accounting policy stated in Note 2.4 to the consolidated financial statements. Passenger ticket breakage is recognized as revenue based on estimates. The Group estimates the value of passenger ticket breakage, reduces contract liabilities and recognizes revenue at the scheduled flight date using a portfolio based approach. The breakage rate is estimated and constrained by reference to the historical trend of passenger ticket breakage. (b) Recognition of contract liabilities for frequent flyer program Passenger ticket sales earning mileage points under the Company’s frequent flyer program provide customers with mileage points earned and air transportation. A portion of passenger revenue attributable to the mileage points issued is deferred based on the relative standalone selling price approach. Significant assumptions are used in determining the estimated standalone selling price of mileage points, including the historical prices of equivalent flights and goods provided, which is estimated by reference to the quantitative value a program member receives by redeeming mileage points for flights and goods, and the estimated mileage points breakage. Mileage points breakage is estimated considering historical redemption pattern, current industry and economic trends and other relevant factors. Changes in the significant assumptions could have a significant effect on the balance of contract liabilities for frequent flyer program and the results of operations. (c) Provision for lease return costs for aircraft and engines Provision for lease return costs for aircraft and engines is recognized as part of the right-of-use assets and are depreciated during the lease term. The estimation of the provision is made taking into account anticipated aircraft and engines’ utilization patterns, historical experience of actual return costs incurred and anticipated return costs, which are by reference to historical experience on returning similar airframe models and engines and aircraft return condition. Different judgements or estimates could significantly affect the estimated provision for lease return costs for aircraft and engines. (d) Retirement benefits The Group operates and maintains a defined retirement benefit plan which provides eligible retirees with benefits including retirement subsidies, transportation allowance as well as other welfare. The cost of providing the aforementioned benefits in the defined retirement benefit plan is actuarially determined and recognized over the employee’s service period by utilizing various actuarial assumptions and using the projected unit credit method in accordance with the accounting policy stated in Note 2.4 to the consolidated financial statements. These assumptions include, without limitation, the selection of discount rate, annual rate of increase of per capita benefit payment and etc. The discount rate is based on management’s review of government bonds. The annual rate of increase of benefit payments is based on the general local economic conditions. Additional information regarding the retirement benefit plan is disclosed in Note 4 0 (e) Deferred income tax Deferred tax assets are recognized for unused tax losses and deductible temporary difference to the extent that it is probable that taxable profit will be available against which the losses and deductible temporary difference can be utilized. Significant management judgement is required to determine the amount of deferred tax assets that can be recognized, based upon the likely timing and level of future taxable profits together with future tax planning strategies. (f) Provision for flight equipment spare parts Provision for flight equipment spare parts is made based on the difference between the carrying amount and the net realizable value. The net realizable value is estimated based on current market condition, historical experience and the Company’s future operation plan for the aircraft and related spare parts. The net realizable value may be adjusted significantly due to the change of market condition and the future plan for the aircraft and related spare parts. (g) Depreciation of property, plant and equipment Depreciation of components related to airframe and engine overhaul costs is based on the Group’s historical experience with similar airframe and engine models and taking into account anticipated overhaul costs, timeframe between each overhaul, ratio of actual flying hours and estimated flying hours between overhauls. Different judgements or estimates could significantly affect the estimated depreciation charge and the results of operations. Except for components related to engine overhaul costs, other property, plant and equipment are depreciated on a straight-line basis over the estimated useful lives, after taking into account the estimated residual value. The useful lives are based on the Group’s historical experience with similar assets and taking into account anticipated technological changes. The Group reviews the estimated useful lives of assets regularly in order to determine the amount of depreciation expense to be recorded during any reporting period. The depreciation expense for future periods is adjusted if there are significant changes from previous estimates. (h) Estimated impairment of property, plant and equipment and intangible assets The Group tests whether property, plant and equipment and intangible assets have been impaired in accordance with the accounting policy stated in Note 2.4 to the consolidated financial statements. The recoverable amount of the cash-generating unit has been determined based on fair value less cost to sell and value-in-use Value-in-use (i) Impairment of goodwill The Group determines whether goodwill is impaired at least on an annual basis. This requires an estimation of the value in use of the cash-generating unit to which the goodwill is allocated. Estimating the value in use requires the Group to make an estimate of the expected future cash flows from the cash-generating unit and also to choose a suitable discount rate in order to calculate the present value of those cash flows. (j) Fair value of unlisted equity investments The unlisted equity investments have been valued based on a market-based valuation technique as detailed in Note 5 0 e (k) Leases – Estimating the incremental borrowing rate (applicable from January 1, 2019) The Group cannot readily determine the interest rate implicit in a lease, and therefore, it uses an incremental borrowing rate (“IBR”) to measure lease liabilities. The IBR is the rate of interest that the Group would have to pay to borrow over a similar term, and with a similar security, the funds necessary to obtain an asset of a similar value to the right-of-use

Operating Segment Information

Operating Segment Information	12 Months Ended
	Dec. 31, 2019
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Operating Segment Information	4 OPERATING SEGMENT INFORMATION (a) CODM, office of the General Manager, reviews the Group’s internal reporting in order to assess performance and allocate resources. The Group has one reportable operating segment, reported as “airline transportation operations”, which comprises the provision of passenger, cargo, mail delivery, ground service and cargo handling services. Other services including primarily tour operations, air catering and other miscellaneous services are not included within the airline transportation operations segment, as their internal reports are separately provided to the CODM. The results of these operations are included in the “other segments” column. Inter-segment transactions are entered into under normal commercial terms and conditions that would be available to unrelated third parties. In accordance with IFRS 8, segment disclosure has been presented in a manner that is consistent with the information used by the Group’s CODM. The Group’s CODM monitors the results, assets and liabilities attributable to each reportable segment based on financial results prepared under the PRC Accounting Standards for Business Enterprises (the “PRC Accounting Standards”), which differ from IFRSs in certain aspects. The amount of each material reconciling items from the Group’s reportable segment revenues and profit before income tax, arising from different accounting policies are set out in Note 4(c) below. The segment results for the year ended December 31, 2019 were as follows: Airline transportation operations RMB million Other segments RMB Eliminations Unallocated* Total Segment revenue Reportable segment revenue from external customers 119,240 1,620 — — 120,860 Inter-segment sales — 2,052 (2,052 ) — — Reportable segment revenue 119,240 3,672 (2,052 ) — 120,860 Reportable segment profit before income tax 2,745 1,164 — 393 4,302 Other segment information Depreciation and amortization 21,816 261 — — 22,077 Impairment charges / Impairment losses on financial assets, net 20 — — — 20 Interest income 108 1 (13 ) — 96 Interest expense 5,152 30 (13 ) — 5,169 Capital expenditure 42,853 303 — — 43,156 The segment results for the year ended December 31, 2018 were as follows: Airline RMB million Other RMB million Eliminations RMB million Unallocated* RMB million Total RMB million Segment revenue Reportable segment revenue from external customers 112,228 2,702 — — 114,930 Inter-segment sales — 1,425 (1,425 ) — — Reportable segment revenue 112,228 4,127 (1,425 ) — 114,930 Reportable segment profit before income tax 2,723 622 — 522 3,867 Other segment information Depreciation and amortization 15,051 251 — — 15,302 Impairment charges/ Impairment losses on financial assets, net 338 7 — — 345 Interest income 118 1 (9 ) — 110 Interest expense 3,721 15 (9 ) — 3,727 Capital expenditure* 30,670 508 — — 31,178 * Capital expenditure consists of additions to property, plant and equipment, right-of-use assets, construction in process, investment properties, intangible assets and long-term deferred assets. The segment assets and liabilities as at December 31, 2019 and December 31, 2018 were as follows: Airline RMB million Other RMB million Eliminations RMB million Unallocated* RMB million Total RMB million At December 31, 2019 Reportable segment assets 274,578 6,225 (1,943 ) 4,076 282,936 Reportable segment liabilities 211,035 3,146 (1,943 ) 301 212,539 At December 31, 2018 Reportable segment assets 230,533 4,635 (2,248 ) 3,845 236,765 Reportable segment liabilities 176,836 2,712 (2,248 ) 113 177,413 * Unallocated assets primarily represent investments in associates and joint ventures, derivative financial instruments, equity investments designated at fair value through other comprehensive income and a financial asset at fair value through profit or loss. Unallocated results primarily represent the share of results of associates and joint ventures, fair value changes of derivative financial instruments, fair value changes of a financial asset at fair value through profit or loss and dividend income relating to equity investments. (b) The Group’s business operates in three main geographical areas, even though they are managed on a worldwide basis. The Group’s revenues by geographical area are analyzed based on the following criteria: 1) Traffic revenue from services within Mainland China (the PRC excluding the Hong Kong Special Administrative Region (“Hong Kong”), Macau Special Administrative Region (“Macau”) and Taiwan, collectively known as “Regional”) is classified as domestic operations. Traffic revenue from inbound and outbound services between overseas markets excluding Regional is classified as international operations. 2) Revenue from ticket handling services, ground services, cargo handling service and other miscellaneous services is classified on the basis of where the services are performed. 2019 2018 2017 RMB million RMB million RMB million Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) 80,058 76,517 67,923 International 37,082 34,744 3,624 Regional (Hong Kong, Macau and Taiwan) 3,846 4,017 30,928 Total 120,986 115,278 102,475 3) The major revenue-earning assets of the Group are its aircraft, all of which are registered in the PRC. Since the Group’s aircraft are deployed flexibly across its route network, there is no suitable basis of allocating such assets and the related liabilities by geographic area and hence segment non-current non-current (c) Reconciliation of reportable segment revenues, profit, assets and liabilities to the consolidated figures as reported in the consolidated financial statements: 2019 2018 2017 Note RMB million RMB million RMB million Revenue Reportable segment revenue 120,860 114,930 101,721 - Reclassification of expired sales in advance of carriage (i) — — 357 - Reclassification of taxes relating to the expired tickets (i) 126 348 397 Consolidated revenue 120,986 115,278 102,475 2019 2018 2017 Note RMB million RMB million RMB million Profit before income tax Reportable segment profit before income tax 4,302 3,867 8,620 - Differences in depreciation charges for aircraft and engines due to different depreciation lives (ii) (3 ) (11 ) (10 ) Consolidated profit before income tax 4,299 3,856 8,610 2019 2018 Notes RMB million RMB million Assets Reportable segment assets 282,936 236,765 - Differences in depreciation charges for aircraft and engines due to different depreciation lives (ii) 7 10 - Difference in intangible asset arising from the acquisition of Shanghai Airlines (iii) 2,242 2,242 Consolidated assets 285,185 239,017 2019 2018 RMB million RMB million Liabilities Reportable segment liabilities 212,539 177,413 - Others — 3 Consolidated liabilities 212,539 177,416 Notes: (i) The difference represents the different classification of sales related taxes under the PRC Accounting Standards and IFRSs. (ii) The difference is attributable to the differences in the useful lives and residual values of aircraft and engines adopted for depreciation purposes in prior years under the PRC Accounting Standards and IFRSs. Despite the depreciation policies of these assets which have been unified under IFRSs and the PRC Accounting Standards in recent years, the changes were applied prospectively as changes in accounting estimates which result in the differences in the carrying amounts and related depreciation charges under IFRSs and the PRC Accounting Standards. (iii) The difference represents the different measurement of the fair value of acquisition cost of the shares from Shanghai Airlines between the PRC Accounting standards and IFRSs, which results in the different measurement of goodwill.

Revenues

Revenues	12 Months Ended
	Dec. 31, 2019
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Revenues	5 REVENUE An analysis of revenue is as follows: 2019 2018 2017 RMB million RMB million RMB million Revenue from contracts with customers 120,796 115,210 102,436 Revenue from other sources Rental income 190 68 39 120,986 115,278 102,475 Revenue from contracts with customers (i) Disaggregated revenue information For the year ended December 31, 2019 Airline transportation Other Segments operations operations Total RMB million RMB million RMB million Type of goods or services Traffic revenues - Passenger 110,416 — 110,416 - Cargo and mail 3,826 — 3,826 Tour operations income — 878 878 Ground service income 1,180 — 1,180 Commission income 2,485 — 2,485 Others 1,269 742 2,011 Total revenue from contracts with customers 119,176 1,620 120,796 Geographical markets Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) 78,248 1,620 79,868 International 37,082 — 37,082 Regional (Hong Kong, Macau and Taiwan) 3,846 — 3,846 Total revenue from contracts with customers 119,176 1,620 120,796 For the year ended December 31, 2018 Airline transportation Other Segments operations operations Total RMB million RMB million RMB million Type of goods or services Traffic revenues - Passenger 104,309 — 104,309 - Cargo and mail 3,627 — 3,627 Tour operations income — 2,173 2,173 Ground service income 1,055 — 1,055 Commission income 2,199 — 2,199 Others 1,368 529 1,897 Total revenue from contracts with customers 112,508 2,702 115,210 Geographical markets Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) 73,747 2,702 76,449 International 34,744 — 34,744 Regional (Hong Kong, Macau and Taiwan) 4,017 — 4,017 Total revenue from contracts with customers 112,508 2,702 115,210 Set out below is the reconciliation of the revenue from contracts with customers to the amounts disclosed in the segment information: For the year ended December 31, 2019 Segments Airline RMB million Other RMB million Total RMB million Revenue from contracts with customers External customers 119,176 1,620 120,796 Intersegment sales — 2,052 2,052 Intersegment adjustment and eliminations — (2,052 ) (2,052 ) Total revenue from contracts with customers 119,176 1,620 120,796 For the year ended December 31, 2018 Segments Airline RMB million Other RMB million Total RMB million Revenue from contracts with customers External customers 112,508 2,702 115,210 Intersegment sales — 1,425 1,425 Intersegment adjustment and eliminations — (1,425 ) (1,425 ) Total revenue from contracts with customers 112,508 2,702 115,210 The following table shows the amounts of revenue recognized in the current reporting period that were included in the contract liabilities at the beginning of the reporting period: 2019 RMB million 2018 RMB million Revenue recognized that was included in contract liabilities at the beginning of the year: Passenger transportation services 7,216 6,218 As at December 31, 2019, the contract liabilities for frequent flyer program amounted to RMB2,057 million. The table below presents the movements of the contract liabilities for frequent flyer program. 2019 RMB million 2018 RMB million At January 1 2,286 1,994 Deferred during the year 1,613 1,519 Recognized as revenue during the year (1,654 ) (1,227 ) At December 31 2,245 2,286 Less: the related pending output value added tax therein 188 240 2,057 2,046 (ii) Performance obligations Information about the Group’s performance obligations is summarized below: Passenger transportation services The performance obligation is satisfied upon transportation services are provided. Payment in advance is required and reflected in sales in advance of carriage or unredeemed points awarded, both of which are included in contract liabilities. Cargo and mail transportation services The performance obligation is satisfied as services are rendered and payment is generally due within 10 days after the end of each month. Tour services The performance obligation is satisfied as services are rendered and payment in advance is generally required. Ground services The performance obligation is satisfied as services are rendered and payment is generally due within 45 days from the date of billing. Ticket cancellation and commission services The performance obligation is satisfied as the process of ticket cancellation or sales is completed and consideration normally has been received before the services are rendered.

Other Operating Income and Gain

Other Operating Income and Gains	12 Months Ended
	Dec. 31, 2019
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Other Operating Income and Gains	6 OTHER OPERATING INCOME AND GAINS 2019 RMB million 2018 2017 Co-operation 5,436 4,536 3,884 Routes subsidy income (note (b)) 353 441 295 Other subsidy income (note (c)) 535 453 762 Gain on disposal of items of property, plant and equipment 40 290 69 Gain on disposal of prepayments for land use rights — 210 5 Gain on disposal of available-for-sale — — 4 Dividend income from available-for-sale — — 33 Gain on disposal of an associate — 5 12 Dividend income from a financial asset at fair value through profit or loss 3 6 — Dividend income from equity investments designated at fair value through other comprehensive income 19 23 — Compensation from ticket sales agents 331 348 271 Gain on disposal of a subsidiary (note (d)) 64 — 1,754 Others 421 280 392 7,202 6,592 7,481 Notes: (a) Co-operation (b) Routes subsidy income represents subsidies granted by various authorities to support certain international and domestic routes operated by the Group. (c) Other subsidy income represents subsidies granted by various local authorities based on certain amounts of tax paid and other government grants. (d) There are no unfulfilled conditions or other contingencies related to subsidies that were recognized for the years ended December 31, 2019, 2018 and 2017.

Operating Profit

Operating Profit	12 Months Ended
	Dec. 31, 2019
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Operating Profit	7 OPERATING PROFIT Operating profit is stated after charging the following items: 2019 RMB million 2018 2017 Amortization of intangible assets (Note 20) 143 160 142 Depreciation of property, plant and equipment (Note 17) – owned 9,078 7,926 7,065 – leased (finance leases) — 6,690 6,302 Depreciation of right-of-use assets (Note 19(b)) (2018 and 2017: amortization of prepayments for land use rights) 12,298 43 45 Depreciation of investment properties (Note 18) 25 26 12 Amortization of long-term deferred assets included in other non-current assets 536 468 402 Consumption of flight equipment spare parts 1,013 1,088 1,131 Auditors’ remuneration 18 17 19 Foreign exchange differences, net (Note 13 and 12) 990 2,040 (2,001 )

Wages, Salaries and Benefits

Wages, Salaries and Benefits	12 Months Ended
	Dec. 31, 2019
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Wages, Salaries and Benefits	8 WAGES, SALARIES AND BENEFITS 2019 RMB million 2018 2017 Wages, salaries, bonuses and allowances 19,385 17,865 16,474 Employee welfare and benefits 143 170 133 Pension (Note 40(a)) 2,571 2,306 1,987 Medical insurance (note (a)) 789 706 663 Staff housing fund (note (b)) 1,056 948 886 Staff housing allowances (note (c)) 186 109 150 Early retirement benefits (note (d)) 22 30 27 24,152 22,134 20,320 Notes: (a) Medical insurance Majority of the Group’s PRC employees participate in the medical insurance schemes organized by municipal governments. (b) Staff housing fund In accordance with the relevant PRC housing regulations, the Group is required to contribute to the state-sponsored housing fund for its employees. At the same time, the employees are required to contribute an amount equal to the Group’s contribution. The employees are entitled to claim the entire sum of the fund contributed under certain specified withdrawal circumstances. The Group has no legal or constructive obligations to pay further contributions if the fund does not hold sufficient assets to pay all employees the benefits. (c) Staff housing allowances The Group also provides staff housing allowances in cash to eligible employees. The total entitlement of an eligible employee is principally provided over a period of 20 years. Upon an eligible employee’s resignation or retirement, his or her entitlement would cease and any unpaid entitlement related to past service up to the date of resignation or retirement would be paid. (d) Early retirement benefits The Group implements an early retirement scheme which allows eligible employees to early retire on a voluntary basis. The Group undertakes the obligations to pay the early retirement employees’ basic salaries and certain welfare in the future on a monthly basis according to the early retirement scheme, together with social insurance and housing fund pursuant to the regulation of the local government. The benefits of the early retirement scheme are calculated based on factors including the remaining number of years of service from the date of early retirement to the normal retirement date and the benefits the early retirement employees enjoyed. The present value of the future cash flows expected to be required to settle the obligations is recognized as a provision in “other long-term liabilities”. (e) Directors’ and executives’ remuneration Directors’ and chief executive’s remuneration for the year, disclosed pursuant to the Listing Rules, section 383(1)(a), (b), (c) and (f) of the Hong Kong Companies Ordinance and Part 2 of the Companies (Disclosure of Information about Benefits of Directors) Regulation, is as follows: 2019 2018 2017 Fees 805 800 800 Other emoluments: Salaries, allowances and benefits in kind 665 1,464 2,133 Performance related bonuses* — — — Pension scheme contributions 21 41 34 1,491 2,305 2,967 * No executive directors of the Company are entitled to bonus payments which are determined as a percentage of the profit after tax of the Group. 2019 Fees RMB’000 Salaries, RMB’000 Performance RMB’000 Pension RMB’000 Total RMB’000 Executive Directors Liu Shaoyong* — — — — — Ma Xulun*&**** — — — — — Wang Junjin** — — — — — Li Yangmin*&** — — — — — Tang Bing*&** — — — — — Yuan Jun* — — — — — Independent non-executive Directors Lin Wanli — — — — — Li Ruoshan*** 200 — — — 200 Ma Weihua*** 200 — — — 200 Shao Ruiqing 200 — — — 200 Cai Hongping 200 — — — 200 Dong Xuebo** 5 — — — 5 Supervisors Xi Sheng* — — — — — Gao Feng — 665 — 21 686 Li Jinde*&*** — — — — — Fang Zhaoya*&** — — — — — Total 805 665 — 21 1,491 2018 Fees RMB’000 Salaries, RMB’000 Performance RMB’000 Pension RMB’000 Total RMB’000 Executive Directors Liu Shaoyong* — — — — — Ma Xulun*&**** — — — — — Xu Zhao*&*** — — — — — Gu Jiadan*&*** — — — — — Li Yangmin*&*** — — — — — Tang Bing*&*** — — — — — Tian Liuwen*&*** — — — — — Yuan Jun** — 867 — 14 881 Independent non-executive Directors Lin Wanli** — — — — — Li Ruoshan 200 — — — 200 Ma Weihua 200 — — — 200 Shao Ruiqing 200 — — — 200 Cai Hongping 200 — — — 200 Supervisors Xi Sheng* — — — — — Gao Feng** — 251 — 19 270 Li Jinde*&** — — — — — Ba Shengji*&*** — — — — — Hu Jidong*&*** — — — — — Feng Jinxiong***** — 346 — 8 354 Jia Shaojun*&*** — — — — — Total 800 1,464 — 41 2,305 2017 Fees RMB’000 Salaries, RMB’000 Performance es RMB’000 Pension RMB’000 Total RMB’000 Executive Directors Liu Shaoyong* — — — — — Ma Xulun* — — — — — Xu Zhao* — — — — — Gu Jiadan* — — — — — Li Yangmin* — — — — — Tang Bing* — — — — — Tian Liuwen* — — — — — Independent non-executive Directors Li Ruoshan 200 — — — 200 Shao Ruiqing 200 — — — 200 Ma Weihua 200 — — — 200 Cai Hongping 200 — — — 200 Supervisors Xi Sheng* — — — — — Feng Jinxiong — 584 — 12 596 Ba Shengji* — — — — — Hu Jidong — 1,549 — 22 1,571 Jia Shaojun* — — — — — Total 800 2,133 — 34 2,967 * These directors and supervisors of the Company received emoluments from CEA Holding, the parent company, part of which were in respect of their services to the Company and its subsidiaries. No apportionment has been made as it is impracticable to apportion this amount between their services to the Group and their services to CEA Holding. ** These directors and supervisors of the Company were newly appointed or elected during the years ended December 31, 2019 and 2018, respectively. *** These directors and supervisors of the Company resigned during the years ended December 31, 2019 and 2018, respectively. **** Mr. Ma Xulun resigned on February 1, 2019. ***** Mr. Feng Jinxiong passed away due to illness during the year ended December 31, 2018. During the years ended December 31, 2019, 2018 and 2017, no directors and supervisors waived their emoluments. (f) Five highest paid individuals None of the Company’s directors and supervisors was among the five highest paid individuals in the Group for the year ended December 31, 2019 (2018: Nil). The emoluments payable to the five highest paid individuals were as follows: 2019 RMB ’000 2018 RMB ’000 Wages, salaries and allowances 11,413 8,938 Pension scheme contributions 185 172 11,598 9,110 The number of five highest paid individuals whose emoluments fell within the following band s Number of individuals 2019 2018 HK$2,000,001 to HK$2,500,000 2 5 HK$2,500,001 to HK$3,000,000 2 — HK$3,000,001 to HK$3,500,000 1 — During the year ended December 31, 2019, no emoluments were paid by the Group to the directors, supervisors and the five highest paid individuals as an inducement to join or upon joining the Group, or as a compensation for loss of office (2018: Nil).

Impairment Charges

Impairment Charges	12 Months Ended
	Dec. 31, 2019
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Impairment Charges	9 IMPAIRMENT CHARGES 2019 RMB million 2018 RMB million 2017 RMB million Impairment charge on property, plant and equipment (Note 17) 4 15 379 Write-down of flight equipment spare parts to net realizable value (Note 27) — 301 112 Impairment charge on assets classified as held for sale — 2 3 4 318 494

Impairment Losses on Financial

Impairment Losses on Financial Assets, Net	12 Months Ended
	Dec. 31, 2019
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Impairment Losses on Financial Assets, Net	10 IMPAIRMENT LOSSES ON FINANCIAL ASSETS, NET 2019 RMB million 2018 RMB million 2017 RMB million Reversal of impairment losses on trade receivables (Note 28) (6 ) (21 ) (3 ) Impairment losses on other receivables (Note 30) 22 48 — 16 27 (3 )

Fair Value Changes of Derivativ

Fair Value Changes of Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2019
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Gain/(Loss) on Fair Value Changes of Derivative Financial Instruments	11 FAIR VALUE CHANGES OF DERIVATIVE FINANCIAL INSTRUMENTS 2019 RMB million 2018 RMB million 2017 RMB million Forward foreign exchange contracts — 311 (311 )

Finance Income

Finance Income	12 Months Ended
	Dec. 31, 2019
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Finance Income	12 FINANCE INCOME 2019 RMB million 2018 RMB million 2017 RMB million Interest income 96 110 111 Foreign exchange gains, net (Note 13(b)) — — 2,001 96 110 2,112

Finance Costs

Finance Costs	12 Months Ended
	Dec. 31, 2019
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Finance Costs	13 FINANCE COSTS 2019 RMB million 2018 RMB million 2017 RMB million Interest on bank borrowings 1,149 1,569 1,590 Interest relating to lease liabilities (Note 19(c)) 3,894 — — Interest relating to obligations under finance leases — 2,440 1,845 Interest relating to post-retirement benefit obligations 92 106 98 Interest relating to provision for lease return costs for aircraft and engines 270 — — Interest on bonds and debentures 520 468 381 Interest relating to interest rate swap contracts (68 ) (6 ) 63 Less: amount capitalized into advanced payments on acquisition of aircraft ( n (687 ) (850 ) (793 ) 5,170 3,727 3,184 Foreign exchange losses, net (note (b)) 990 2,040 — 6,160 5,767 3,184 Notes: (a) The weighted average interest rate used for interest capitalization was 3.51% per annum for the year ended December 31, 2019 (2018: 3.54% and 2017: 3.40%). (b) The exchange gains and losses primarily related to the translation of the Group’s foreign currency denominated borrowings and lease liabilities (2018 and 2017: obligations under finance leases).

Income Tax Expense

Income Tax Expense	12 Months Ended
	Dec. 31, 2019
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Income Tax Expense	14 INCOME TAX EXPENSE Income tax charged to profit or loss was as follows: 2019 RMB million 2018 2017 Income tax 942 1,220 1,962 Deferred taxation (Note 2 6 (123 ) (294 ) (162 ) 819 926 1,800 Pursuant to the “Notice of the Ministry of Finance, the State Administration of Taxation and the General Administration of Customs on Issues Concerning Relevant Tax Policies for Enhancing the Implementation of Western Region Development Strategy” (Cai Shui [2011] No.58), and other series of tax regulations, enterprises located in the western regions and engaged in the industrial activities as listed in the “Catalogue of Encouraged Industries in Western Regions”, will be entitled to a reduced corporate income tax rate of 15% from 2011 to 2020 upon approval from the tax authorities. CEA Yunnan, a subsidiary of the Company, obtained approval from the tax authorities and has been entitled to a reduced corporate income tax rate of 15% from January 1, 2011. The Company’s Sichuan branch, Gansu branch and Xibei branch also obtained approvals from the respective tax authorities and are entitled to a reduced corporate income tax rate of 15%. The subsidiaries incorporated in Hong Kong are subject to Hong Kong profits tax rate of 16.5% (2018: 16.5%). Eastern E-Commerce, The Company and its subsidiaries, except for CEA Yunnan, Eastern E-commerce, A reconciliation of the tax expense applicable to profit before tax at the statutory rates for the countries in which the Company and the majority of its subsidiaries are domiciled to the tax expense at the effective tax rates, is as follows: 2019 2018 2017 RMB million RMB million RMB million Profit before income tax 4,299 3,856 8,610 Tax calculated at the tax rate of 25% (2018: 25%, 2017:25%) 1,075 964 2,152 Lower tax rates enacted by local authority (139 ) (93 ) (87 ) Share of results of associates and joint ventures (71 ) (51 ) (63 ) Income not subject to tax (36 ) (9 ) (13 ) Expenses not deductible for tax 128 88 38 Utilization of previously unrecognized tax losses (11 ) (60 ) (253 ) Unrecognized tax losses for the year 17 28 48 Utilization of previously unrecognized deductible temporary differences (8 ) (1 ) (5 ) Unrecognized deductible temporary differences 3 23 2 Adjustments in respect of current tax of previous periods (34 ) 61 (8 ) Super deduction of research and development costs (27 ) (24 ) (11 ) Income tax deduction of purchase of special equipment for production safety (78 ) — — Tax charge 819 926 1,800 Effective tax rate 19.05 % 24.01 % 20.91 % The Group operates international flights to overseas destinations. There was no material overseas taxation for the years ended December 31, 2019, 2018 and 2017, as there are tax treaties between the PRC and the corresponding jurisdictions (including Hong Kong) relating to the aviation business.

Dividends

Dividends	12 Months Ended
	Dec. 31, 2019
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Dividends	15 DIVIDENDS 2019 2018 2017 RMB million RMB million RMB million Proposed final – RMB0.050 per ordinary share 819 — 740 On March 31, 2020, the Board approved the 2019 profit distribution plan to propose cash dividend for 2019 of RMB0.050 per share (before tax), totaling RMB819 million (before tax) based on 16,379,509,203 shares of the Company. The aforesaid profit distribution proposal is subject to approval by the shareholders at the forthcoming 2019 annual general meeting of the Company.

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2019
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Earnings Per Share	16 EARNINGS PER SHARE The calculation of basic earnings per share was based on the profit attributable to equity holders of the Company of RMB3,192 million (2018: RMB2,698 million, 2017: RMB6,342 million) and the weighted average number of shares of 15,104,893,522 (2018: 14,467,585,682, 2017: 14,467,585,682) in issue during the year ended December 31, 2019. The Company had no potentially dilutive options or other instruments relating to the ordinary shares in issue during the years ended December 31, 2019, 2018 and 2017.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Property, Plant and Equipment	17 PROPERTY, PLANT AND EQUIPMENT Aircraft, engines and flight equipment Other property, plant and equipment Owned Held under Buildings Construction Total RMB million RMB million RMB million RMB million RMB million RMB million December 31, 2019 At December 31, 2018, net of accumulated depreciation and impairment 68,565 94,416 8,530 4,174 4,419 180,104 Effect of adoption of IFRS 16 — (94,416 ) — — — (94,416 ) At January 1, 2019 (restated) 68,565 — 8,530 4,174 4,419 85,688 Additions 4,137 — (41 ) 716 3,242 8,054 Disposals (10 ) — (40 ) (41 ) — (91 ) Transfer from construction in progress — — 3,523 214 (3,737 ) — Transfer from advanced payments on acquisition of aircraft 335 — — — — 335 Transfer from investment properties (Note 18) — — 76 — — 76 Transfer from right-of-use assets (Note 19(b)) 14,264 — — — — 14,264 Transfer to investment properties (Note 18) — — (23 ) — — (23 ) Transfer from/(to) other non-current assets — — — 309 (67 ) 242 Disposal of a subsidiary (Note 45) — — (8 ) (18 ) — (26 ) Depreciation provided during the year (7,812 ) — (363 ) (903 ) — (9,078 ) Impairment — — — (4 ) — (4 ) At December 31, 2019, net of accumulated depreciation and impairment 79,479 — 11,654 4,447 3,857 99,437 At December 31, 2019: Cost 133,845 — 14,153 10,217 3,857 162,072 Accumulated depreciation and impairment (54,366 ) — (2,499 ) (5,770 ) — (62,635 ) Net carrying amount 79,479 — 11,654 4,447 3,857 99,437 As at December 31, 2019, the ownership certificates of buildings with a net carrying amount of RMB9,206 million have not been obtained. The directors of the Company are of the opinion that the Group legally owns and has the rights to use the aforesaid buildings, and that there is no material adverse impact on the overall financial position of the Group. The following table indicates the cost and net carrying amount of the Group’s aircraft pledged as collateral under certain borrowing arrangements (Note 38): 2019 2018 Cost Net carrying amount Cost Net carrying amount RMB million RMB million RMB million RMB million Aircraft - pledged as collateral 10,819 7,243 11,752 8,391 Aircraft, engines and flight equipment Other property, plant and equipment Owned Held under Buildings Construction Total RMB million RMB million RMB million RMB million RMB million RMB million December 31, 2018 At December 31, 2017 and at January 1, 2018: Cost 111,297 105,801 8,809 7,934 3,705 237,546 Accumulated depreciation and impairment (42,303 ) (21,041 ) (2,331 ) (5,015 ) — (70,690 ) Net carrying amount 68,994 84,760 6,478 2,919 3,705 166,856 At January 1, 2018, net of accumulated depreciation and impairment 68,994 84,760 6,478 2,919 3,705 166,856 Additions 6,057 9,821 32 1,192 4,181 21,283 Disposals (3,304 ) (1,332 ) (202 ) (54 ) — (4,892 ) Transfer from construction in progress — — 2,909 548 (3,457 ) — Transfer from advanced payments on acquisition of aircraft 824 10,696 — — — 11,520 Transfer from investment properties (Note 18) — — 18 — — 18 Transfer to investment properties (Note 18) — — (386 ) — — (386 ) Assets included in assets classified as held for sale (13 ) — — — — (13 ) Transfer from/(to) other non-current — — — 359 (10 ) 349 Depreciation provided during the year (6,798 ) (6,709 ) (318 ) (791 ) — (14,616 ) Impairment (15 ) — — — — (15 ) Transfers 2,820 (2,820 ) (1 ) 1 — — At December 31, 2018, net of accumulated depreciation and impairment 68,565 94,416 8,530 4,174 4,419 180,104 At December 31, 2018: Cost 111,968 117,824 10,689 9,462 4,419 254,362 Accumulated depreciation and impairment (43,403 ) (23,408 ) (2,159 ) (5,288 ) — (74,258 ) Net carrying amount 68,565 94,416 8,530 4,174 4,419 180,104

Investment Properties

Investment Properties	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Investment Properties	18 INVESTMENT PROPERTIES 2019 2018 RMB million RMB million Cost At January 1 940 392 Transfer from property, plant and equipment (Note 17) 35 474 Transfer from right-of-use assets (Note 19(b)) 13 — Transfer from intangible asset — 98 Transfer to property, plant and equipment (Note 17) (101 ) (24 ) Transfer to right-of-use assets (Note 19(b)) (4 ) — At December 31 883 940 Accumulated depreciation At January 1 216 90 Transfer from property, plant and equipment (Note 17) 12 88 Transfer from right-of-use assets (Note 19(b)) 3 — Transfer from intangible assets — 18 Transfer to property, plant and equipment (Note 17) (25 ) (6 ) Transfer to right-of-use assets (Note 19(b)) (1 ) — Charge for the year (Note 7) 25 26 At December 31 230 216 Net book amount At December 31 653 724 As at December 31, 2019, the fair value of the investment properties was approximately RMB1,125 million (2018: RMB1,127 million) according to a valuation performed by an independent professionally qualified valuer. The investment properties are leased to third parties and related parties under operating leases. Rental income totaling RMB100 million (2018: RMB63 million, 2017: RMB39 million) was received by the Group during the year in respect of the leases. As at December 31, 2019, the carrying amount of the investment properties for which the ownership certificates of buildings have not been obtained was RMB451 million (2018: RMB498 million). The directors of the Company are of the opinion that the Group legally owns and has the rights to use the aforesaid investment properties, and that there is no material adverse impact on the overall financial position of the Group. Fair value hierarchy The following table illustrates the fair value measurement hierarchy of the Group’s investment properties: Buildings Fair value measurement using Quoted prices (Level 1) Significant (Level 2) Significant (Level 3) Total RMB million RMB million RMB million RMB million Not measured at fair value but fair value is disclosed: As at December 31, 2019 — 144 981 1,125 As at December 31, 2018 — 243 884 1,127 During the year, there were no transfers of fair value measurements between Level 1 and Level 2 and no transfers into or out of Level 3 (2018: Nil). The fair values of the buildings with comparable market prices have been estimated using significant observable inputs and calculated by adjusted market prices considering the condition and location of the buildings. The fair values of the buildings without comparable market prices have been estimated by a discounted cash flow valuation model using significant unobservable inputs such as the estimated rental value, rent growth, long term vacancy rate and discount rate.

Leases

Leases	12 Months Ended
	Dec. 31, 2019
Presentation of leases for lessee [abstract]
Leases	19 LEASES The Group as a lessee The Group has lease contracts for various items of aircraft, engines, buildings and others used in its operations. Lump sum payments were made upfront to acquire the leased land from the owners with lease periods of 50 years, and no ongoing payments will be made under the terms of these land leases. As at December 31, 2019, the Group had 462 aircraft (2018: 450 aircraft) under leases, which generally have lease terms between 8 and 12 years. Leases of engines generally have lease terms between 8 and 12 years, while buildings generally have lease terms between 2 and 10 years. Others, including motor vehicles, generally have lease term between 2 to 5 years. The Group also has lease contracts for buildings and equipment with lease terms of 12 months or less or is individually of low value. Generally, the Group is restricted from assigning and subleasing the leased assets outside the Group. (a) Prepayments for land use rights (before January 1, 2019) RMB million Carrying amount at January 1, 2018 1,717 Recognized in profit or loss during the year (330 ) Carrying amount at December 31, 2018 1,387 (b) Right-of-use The carrying amounts of the Group’s right-of-use Aircraft, engines and flight equipment RMB million Prepayments RMB million Buildings RMB million Others RMB million Total RMB million Cost at January 1, 2019, net of accumulated depreciation 126,417 1,387 496 12 128,312 Additions 26,315 1 622 73 27,011 Transfer from investment properties (Note 18) — 3 — — 3 Transfer to property, plant and equipment (Note 17) (14,264 ) — — — (14,264 ) Transfer to investment properties (Note 18) — (10 ) — — (10 ) Disposal of a subsidiary (Note 45) — — (10 ) — (10 ) Disposals (40 ) — — — (40 ) Depreciation provided during the year (11,964 ) (38 ) (284 ) (12 ) (12,298 ) At December 31, 2019 126,464 1,343 824 73 128,704 At December 31, 2019: Cost 172,690 1,662 1,108 85 175,545 Accumulated depreciation (46,226 ) (319 ) (284 ) (12 ) (46,841 ) Net carrying amount 126,464 1,343 824 73 128,704 (c) Lease liabilities The carrying amount of lease liabilities and the movements during the year are as follows: 2019 RMB million 2018 RMB million Carrying amount at January 1 77,427 66,868 Effect of adoption IFRS16 31,879 — Carrying amount at January 1 (restated) 109,306 66,868 New leases 24,023 18,769 Effect of foreign exchange 851 1,419 Disposal of a subsidiary (Note 45) (10 ) — Accretion of interest recognized during the year 3,894 2,440 Payments (27,789 ) (12,069 ) Carrying amount at December 31 110,275 77,427 Analyzed into: Current portion 15,590 9,364 Non-current 94,685 68,063 The maturity analysis of lease liabilities (2018: Obligations under finance leases) is disclosed in Note 51 to the consolidated financial statements. (d) The amounts recognized in profit or loss in relation to leases are as follows: 2019 RMB million Interest on lease liabilities 3,894 Depreciation charge of right-of-use 12,298 Low value and short-term lease rental 631 Total amount recognized in profit or loss 16,823 (e) The Group has no significant lease contracts that include extension and termination options or contains variable payments. (f) The total cash outflow for leases and future cash outflows relating to leases that have not yet commenced are disclosed in Notes 46(d) and 47, respectively, to the consolidated financial statements. The Group as a lessor The Group leases its investment properties (Note 18 to the consolidated financial statements) consisting of around 68 industrial properties in the PRC under operating lease arrangements, with leases negotiated for terms ranging from two to fourteen years. The terms of the leases generally require the tenants to pay security deposits and provide for periodic rent adjustments according to the then prevailing market conditions. Rental income recognized by the Group during the year was RMB190 million (2018: RMB68 million), details of which are included in Note 5 to the consolidated financial statements. At December 31, 2019, the undiscounted lease payments receivable by the Group in future periods under non-cancellable 2019 RMB million Within one year 165 After one year but within two years 149 After two years but within three years 144 After three years but within four years 139 After four years but within five years 138 After five years 221 956

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Intangible Assets	Goodwill Computer Others Total RMB million RMB million RMB million RMB million December 31, 2019 Cost at January 1, 2019, net of accumulated amortization 11,270 339 — 11,609 Additions — 199 — 199 Transfer from construction in process — 36 — 36 Disposals — (3 ) — (3 ) Amortization provided during the year — (143 ) — (143 ) At December 31, 2019 11,270 428 — 11,698 At December 31, 2019: Cost 11,270 1,301 98 12,669 Accumulated amortization (873 ) (98 ) (971 ) Net carrying amount 11,270 428 — 11,698 Goodwill Computer Others (note (b)) Total RMB million RMB million RMB million RMB million December 31, 2018 Cost at January 1, 2018, net of accumulated amortization 11,270 293 33 11,596 Additions — 166 — 166 Transfer from construction in process — 7 — 7 Amortization provided during the year — (127 ) (33 ) (160 ) At December 31, 2018 11,270 339 — 11,609 At December 31, 2018: Cost 11,270 1,077 98 12,445 Accumulated amortization — (738 ) (98 ) (836 ) Net carrying amount 11,270 339 — 11,609 Notes: (a) The balance represents goodwill arising from the acquisition of Shanghai Airlines. The value of the goodwill is attributable to strengthening the competitiveness of the Group’s airline transportation operations, attaining synergy through integration of the resources and accelerating the development of international air transportation in Shanghai. For the purpose of impairment assessment, goodwill was allocated to the cash-generating unit (“CGU”) that the Group operates and benefits from the acquisition. The recoverable amount of the CGU has been determined based on a value-in-use post-tax value-in-use (b) The balance represents the costs incurred to acquire the use right of certain flight schedules (i.e. timeslots for flights’ taking off/landing).

Investments in Associates

Investments in Associates	12 Months Ended
	Dec. 31, 2019
Investments accounted for using equity method [abstract]
Investments in Associates	21 INVESTMENTS IN ASSOCIATES 2019 2018 RMB million RMB million Share of net assets 1,977 1,696 The movements in investments in associates were as follows: 2019 2018 RMB million RMB million At January 1 1,696 1,654 Additions 95 — Share of results of associates 265 170 Share of revaluation on equity investments designated at fair value through other comprehensive income held by an associate 7 (24 ) Share of other equity changes of an associate 8 — Dividend received during the year (85 ) (104 ) Disposal of a subsidiary (Note 45) (9 ) — At December 31 1,977 1,696 Particulars of the principal associates, which are limited liability companies, are as follows: Company name Place of Registered capital Attributable Principal activities 2019 2018 2019 2018 Million Million Eastern Air Group Finance Co., Ltd. (“Eastern Air Finance Company”) PRC/Mainland China December 6, 1995 RMB2,000 RMB2,000 25% 25% Provision of financia l services to group China Eastern Air Catering Investment Co., Ltd. PRC/Mainland China November 17, RMB350 RMB350 45% 45% Provision of air catering services Shanghai Pratt & Whitney Aircraft Engine Maintenance Co., Ltd. (“Shanghai P&W”) (note) PRC/Mainland China March 28, 2008 USD40 USD40 51% 51% Provision of aircraft, New Shanghai International Tower Co., Ltd. PRC/Mainland China November 17, RMB167 RMB167 20% 20% Property Eastern Aviation Import & Export Co., Ltd. (“Eastern Import & Export”) PRC/Mainland China June 9, 1993 RMB80 RMB80 45% 45% Provision of aviation Eastern Aviation Advertising Service Co., Ltd. (“Eastern Advertising”) PRC/Mainland China March 4, 1986 RMB200 RMB200 45% 45% Provision of aviation Shanghai Collins Aviation Maintenance Service Co., Ltd. (“Collins Aviation”) PRC/Mainland China September 27, USD7 USD7 35% 35% Provision of airline Shanghai Airlines Tours International (Group) Co., Ltd. (“Shanghai Airlines Tours”) PRC/Mainland China August 29, 1992 RMB143 RMB50 35% 100% Tour operations, Note: In 2008, the Company entered into an agreement with United Technologies International Corporation (“Technologies International”) to establish Shanghai P&W, in which the Company holds a 51% interest. According to the shareholder’s agreement, Technologies International has the power to govern the financial and operating policies and in this respect the Company accounts for Shanghai P&W as an associate. The following table illustrates the aggregate financial information of the Group’s associates that were not individually material: 2019 2018 RMB million RMB million Share of the associates’ profit for the year 265 170 Share of the associates’ other comprehensive income 7 (24 ) Share of the associates’ total comprehensive income 272 146 Aggregate carrying amount of the Group’s interests in the associates 1,977 1,696

Investments in Joint Ventures

Investments in Joint Ventures	12 Months Ended
	Dec. 31, 2019
Investments accounted for using equity method [abstract]
Investments in Joint Ventures	22 INVESTMENTS IN JOINT VENTURES 2019 2018 RMB million RMB million Share of net assets 627 577 The movements in investments in joint ventures were as follows: 2019 2018 RMB million RMB million At January 1 577 557 Additions 102 16 Share of results 17 34 Dividend received during the year (69 ) (30 ) At December 31 627 577 Particulars of the principal joint ventures, which are limited liability companies, are as follows: Company name Place of establishment Paid-up Attributable Principal activities 2019 2018 2019 2018 Million Million Shanghai Technologies Aerospace Co., Ltd. (“Technologies Aerospace”) (note) PRC/Mainland China September 28, 2004 USD73 USD73 51% 51% Provision of repair and Shanghai Eastern Union Aviation Wheels & Brakes Maintenance Services Overhaul Engineering Co., Ltd. (“Wheels & Brakes”) PRC/Mainland China December 28, 1995 USD2 USD2 40% 40% Provision of spare Eastern China Kaiya System Integration Co., Ltd. (“China Kaiya”) PRC/Mainland China May 21, 1999 RMB10 RMB10 41% 41% Provision of computer CAE Melbourne Flight Training Pty Ltd. (“CAE Melbourne”) Australia March 9, 2007 AUD11 AUD11 50% 50% Provision of flight Shanghai Hute Aviation Technology Co., Ltd. (“Shanghai Hute”) PRC/Mainland China April 9, 2003 RMB30 RMB30 50% 50% Provision of Xi’an CEA SAFRAN Landing Systems Services Co., Ltd. (“XIESA”) PRC/Mainland China July 12, 2017 USD40 USD40 50% 50% Provision of aircraft, Note: Under a joint venture agreement with a joint venture partner of Technologies Aerospace dated March 10, 2003, both parties have agreed to share the control over the economic activities of Technologies Aerospace with the joint venture partner. Any strategic financial and operating decisions relating to the activities of Technologies Aerospace require the unanimous consent of the Company and the joint venture partner. The following table illustrates the aggregate financial information of the Group’s joint ventures that were not individually material: 2019 2018 RMB million RMB million Share of the joint ventures’ profit for the year 17 34 Share of the joint ventures’ total comprehensive income 17 34 Aggregate carrying amount of the Group’s interests in the joint ventures 627 577

Equity Investments Designated a

Equity Investments Designated at Fair Value Through Other Comprehensive Income	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Equity Investments Designated at Fair Value Through Other Comprehensive Income	23 EQUITY INVESTMENTS DESIGNATED AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME 2019 2018 RMB million RMB million Listed equity investments, at fair value TravelSky Technology Limited 496 510 496 510 Unlisted equity investments, at fair value Sichuan Airlines Corporation Limited 336 438 Aviation Data Communication Corporation Limited 244 161 Others 198 138 778 737 1,274 1,247 The above equity investments were irrevocably designated at fair value through other comprehensive income as the Group considers these investments to be strategic in nature. During the year ended December 31, 2019, the Group received dividends in the amounts of RMB8 million, RMB2 million, RMB5 million and RMB4 million from TravelSky Technology Limited, Sichuan Airlines Corporation Limited, Aviation Data Communication Corporation Limited and other non-listed

Derivative Financial Instrument

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Derivative Financial Instruments	24 DERIVATIVE FINANCIAL INSTRUMENTS Assets Liabilities 2019 2018 2019 2018 RMB million RMB million RMB million RMB million At December 31 Forward currency contracts 43 — 13 29 Interest rate swaps 27 223 10 — Total 70 223 23 29 Less: current portion – Forward currency contracts 43 — 13 29 – Interest rate swaps — 1 — — Non-current 27 222 10 — Cash flow hedge – Foreign currency risk Forward currency contracts are designated as hedging instruments in cash flow hedges of forecasted capital expenditures in USD, which comprise about 7% of its total expected capital expenditures in USD, and forecasted transactions that are highly probable. The forward currency contract balances vary with the level of expected foreign currency expenditures and changes in foreign exchange forward rates. Cash flow hedge – Interest rate risk At December 31, 2019, the Group had interest rate swap contracts in place with a notional amount of USD888 million whereby the Group receives interest at variable rates and pays interest at fixed rates. The swaps are being used to hedge against the variability in the cash flows arising from a change in market interest rates of lease liabilities with a face value of USD888 million. There is an economic relationship between the hedged items and the hedging instruments as the terms of the forward currency contracts and interest rate swap contracts match the terms of the expected foreign currency capital expenditures and the lease liabilities (i.e., notional amount and expected payment date). The Group has established a hedge ratio of 1:1 for the hedging relationships as the underlying risks of the forward currency contracts and interest rate swaps are identical to the hedged risk components. To measure the hedge effectiveness, the Group uses the hypothetical derivative method and compares the changes in the fair value of the hedging instruments against the changes in fair value of the hedged items attributable to the hedged risks. Hedge ineffectiveness can arise from: • Differences in the timing of the cash flows of the forecasted transactions and the hedging instruments • Different interest rate curves applied to discount the hedged items and hedging instruments • The counterparties’ credit risks differently impacting the fair value movements of the hedging instruments and hedged items • Changes to the forecasted amounts of cash flows of hedged items and hedging instruments The Group holds the following forward currency contracts and interest rate swap contracts: Maturity Less than 3 to 6 6 to 9 9 to 12 Over 1 Total As at December 31, 2019 Forward currency contracts (Capital expenditures) Notional amount (in RMB million) — 628 1,047 1,046 — 2,721 Average forward rate (RMB/USD) — 7.0151 6.9325 6.9988 — 6.9771 Forward currency contracts (Highly probable forecasted purchases) Notional amount (in RMB million) — — 1,835 858 — 2,693 Average forward rate (RMB/USD) — — 6.9629 6.8810 — 6.9368 Interest rate swaps (Payment on lease liabilities) Notional amount (in RMB million) 31 30 — — 6,133 6,194 Hedged rate (%) 2.0450 1.8800 — — 1.6803 1.6831 The impacts of the hedging instruments on the statement of financial position are as follows: Notional Carrying Line item in the statement Change in RMB million RMB million RMB million As at December 31, 2019 Forward currency contracts (Capital expenditures) 2,721 8 Derivative financial instruments 141 Forward currency contracts (Highly probable forecasted purchases) 2,693 22 Derivative financial instruments 22 Forward currency contracts (Payment on bonds) — — Derivative financial instruments 14 Interest rate swaps (Payment on lease liabilities) 6,194 17 Derivative financial instruments (137 ) The impacts of the hedged items on the statement of financial position are as follows: Change in fair value used for measuring Cash flow hedge reserve RMB million RMB million As at December 31, 2019 Capital expenditures 141 8 Highly probable forecasted purchases 22 22 Payment on bonds 14 — Payment on lease liabilities (163 ) 17 14 47 The effects of the cash flow hedge on the statement of profit or loss and the statement of comprehensive income are as follows: Total hedging gain/(loss) Hedge recognized in Line item in the statement Amount reclassified from other Line item the statement of Gross Tax Total Gross Tax Total RMB million RMB million RMB million RMB million RMB million RMB million RMB million Year ended December 31, 2019 Capital expenditures 141 (35 ) 106 — N/A (82 ) 20 (62 ) Finance Costs Highly probable forecasted purchases 22 (6 ) 16 — N/A (22 ) 6 (16 ) Finance Costs Payment on bonds 14 (4 ) 10 — N/A (14 ) 4 (10 ) Finance Costs Payment on lease liabilities (137 ) 34 (103 ) — N/A (68 ) 17 (51 ) Finance Costs

Other Non-current Assets

Other Non-current Assets	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Other Non-current Assets	2019 2018 RMB million RMB million Deposits relating to aircraft held under leases 156 177 Deferred pilot recruitment costs 1,873 1,536 Rebate receivables on aircraft acquisitions 42 55 Prepayment for acquisition of property, plant and equipment 1,095 854 Others 804 748 3,970 3,370

Deferred Taxation

Deferred Taxation	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Deferred Taxation	26 DEFERRED TAXATION Deferred tax assets and liabilities are offset when there is a legally enforceable right of offsetting and when the deferred income taxes relate to the same authority. The following amounts, determined after appropriate offsetting, are shown in the consolidated statement of financial position: 2019 2018 RMB million RMB million Deferred tax assets 853 207 Deferred tax liabilities (22 ) (84 ) Net deferred tax assets 831 123 Movements in the net deferred tax assets/(liabilities) were as follows: 2019 RMB million At December 31, 2018 123 Effect of adoption of IFRS 16 554 At January 1, 2019 (restated) 677 Credited to profit or loss (Note 14) 123 Charged to other comprehensive income 31 At December 31, 2019 831 2018 RMB million At January 1, 2018 (240 ) Credited to profit or loss (Note 14) 294 Charged to other comprehensive income 69 At December 31, 2018 123 The deferred tax assets and liabilities (prior to the offsetting of balances within the same tax jurisdiction) were made up of the taxation effects of the following: 2019 2018 RMB million RMB million Deferred tax assets: Provision for lease return costs for aircraft and engines 1,075 — Impairment provision for flight equipment spare parts 53 126 Impairment provision for receivables 76 75 Impairment provision for property, plant and equipment 101 103 Derivative financial instruments 6 7 Financial asset at fair value through profit or loss — 6 Other payables and accruals 71 89 Government grants related to assets 35 42 Deferred gains in sale and leaseback transactions — 6 Loss available for offsetting against future taxable profits 66 — Aged payables 1 2 1,484 456 Deferred tax liabilities: Lease liabilities/Right-of-use (352 ) — Equity investments designated at fair value through other comprehensive income (283 ) (278 ) Derivative financial instruments (18 ) (55 ) (653 ) (333 ) 831 123 Movements in the net deferred tax assets/(liabilities) of the Group for the year were as follows: At Effect of At January 1 (Charged)/ (Charged)/ At For the year ended December 31, 2019 Provision for lease return costs for aircraft and engines — 882 882 193 — 1,075 Impairment provision for flight equipment spare parts 126 — 126 (73 ) — 53 Impairment provision for receivables 75 — 75 1 — 76 Impairment provision for property, plant and equipment 103 — 103 (2 ) — 101 Derivative financial instruments 7 — 7 — (1 ) 6 Financial asset at fair value through profit or loss 6 — 6 (6 ) — — Other payables and accruals 89 — 89 (18 ) — 71 Government grants related to assets 42 — 42 (7 ) — 35 Deferred gains in sale and leaseback transactions 6 — 6 (6 ) — — Loss available for offsetting against future taxable profits — — — 66 — 66 Aged payables 2 — 2 (1 ) — 1 456 882 1,338 147 (1 ) 1,484 Lease liabilities/Right-of-use assets — (328 ) (328 ) (24 ) — (352 ) Equity investments designated at fair value through other comprehensive income (278 ) — (278 ) — (5 ) (283 ) Derivative financial instruments (55 ) — (55 ) — 37 (18 ) (333 ) (328 ) (661 ) (24 ) 32 (653 ) Net deferred tax assets/(liabilities) 123 554 677 123 31 831 At January 1 RMB million (Charged)/ (Charged)/ credited to other At 8 For the year ended December 31, 2018 Impairment provision for flight equipment spare parts 51 75 — 126 Impairment provision for receivables 72 3 — 75 Impairment provision for property, plant and equipment 104 (1 ) — 103 Derivative financial instruments 82 (78 ) 3 7 Financial asset at fair value through profit or loss — 6 — 6 Other payables and accruals 29 60 — 89 Government grants related to assets — 42 — 42 Deferred gains in sale and leaseback transactions — 6 — 6 Aged payables 5 (3 ) — 2 343 110 3 456 Depreciation and amortization (56 ) 56 — — Equity investments designated at fair value through other comprehensive income (361 ) — 83 (278 ) Derivative financial instruments (38 ) — (17 ) (55 ) Passenger ticket breakage (128 ) 128 — — (583 ) 184 66 (333 ) Net deferred tax assets/(liabilities) (240 ) 294 69 123 The temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements, for which deferred tax has not been recognized in the periods presented, aggregate to RMB12,558 million (2018: RMB11,360 million). As at the reporting date, the Group had the following balances in respect of which deferred tax assets have not been recognized: 2019 2018 Deferred RMB million Temporary RMB million Deferred RMB million Temporary RMB million Tax losses carried forward 54 217 67 267 Other deductible temporary differences 7 30 27 126 Total unrecognized deferred tax assets 61 247 94 393 In accordance with the PRC tax law, tax losses can be carried forward for a period of five years to offset against future taxable income. The Group’s tax losses carried forward will expire between 2020 and 2024. As at December 31, 2019, management carried out an assessment to determine whether future taxable profits will be available to utilize the tax losses and deductible temporary differences. As there are still uncertainties around the Group’s future operating results, such as future fuel prices and market competition, management assessed that for certain subsidiaries there are significant uncertainties that future taxable profits will be available and the deferred tax assets arising from aforementioned tax losses and deductible temporary differences were not recognized.

Flight Equipment Spare Parts

Flight Equipment Spare Parts	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Flight Equipment Spare Parts	27 FLIGHT EQUIPMENT SPARE PARTS 2019 2018 RMB million RMB million Flight equipment spare parts 2,732 2,778 Less: provision for spare parts (325) (828 ) 2,407 1,950 Movements in the Group’s provision for impairment of flight equipment spare parts were as follows: 2019 2018 RMB million RMB million At January 1 828 531 Accrual (Note 9) — 301 Amount written off in relation to disposal of spare parts (503) (4 ) At December 31 325 828

Trade and Notes Receivables

Trade and Notes Receivables	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Trade and Notes Receivables	28 TRADE AND NOTES RECEIVABLES The credit terms given to trade customers are determined on an individual basis. 2019 2018 RMB million RMB million Trade receivables 1,793 1,525 Notes receivable — 4 1,793 1,529 Impairment (76 ) (93 ) 1,717 1,436 An aging analysis of the trade receivables as at the end of the reporting period, based on the invoice/billing date and net of loss allowance, is as follows: 2019 RMB million 2018 RMB million Within 90 days 1,615 1,354 91 to 180 days 33 52 181 to 365 days 39 11 Over 365 days 30 15 1,717 1,432 Balances with related parties included in trade and notes receivables are summarized in Note 48(c)(i). The movements in the loss allowance for impairment of trade receivables are as follows: 2019 RMB million 2018 RMB million At beginning of year 93 119 Impairment losses, net (Note 10) (6 ) (21 ) Amount written off as uncollectible (4 ) (5 ) Disposal of a subsidiary (7 ) — At end of year 76 93 An impairment analysis is performed at each reporting date using a provision matrix to measure expected credit losses. The provision rates are based on days past due for groupings of various customer segments with similar loss patterns. The calculation reflects the probability-weighted outcome, the time value of money and reasonable and supportable information that is available at the reporting date about past events, current conditions and forecasts of future economic conditions. Set out below is the information about the credit risk exposure on the Group’s trade receivables using a provision matrix: As at December 31, 2019 Past due Current Less than 90 to 365 Over Total Expected credit loss rate (%) 0.12 2.94 2.50 70.59 4.24 Gross carrying amount (RMB million) 1,617 34 40 102 1,793 Expected credit losses (RMB million) 2 1 1 72 76 As at December 31, 2018 Past due Current Less than 90 to 365 Over Total Expected credit loss rate (%) 0.57 0.78 1.59 83.17 6.10 Gross carrying amount (RMB million) 1,232 129 63 101 1,525 Expected credit losses (RMB million) 7 1 1 84 93 Trade and notes receivables that were neither past due nor impaired relate to a large number of independent sales agents for whom there was no recent history of default. The net impacts of recognition and reversal of provisions for impaired receivables have been included in “Impairment losses on financial assets, net” in profit or loss (Note 10). Amounts charged to the allowance account are generally written off when there is no expectation of recovering.

Financial Asset at Fair Value T

Financial Asset at Fair Value Through Profit or Loss	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Financial Asset at Fair Value Through Profit or Loss	29 FINANCIAL ASSET AT FAIR VALUE THROUGH PROFIT OR LOSS 2019 RMB million 2018 RMB million Listed equity investment, at fair value Shanghai Pudong Development Bank Co., Ltd. 121 96 The above equity investment was classified as a financial asset at fair value through profit or loss as it was held for trading.

Prepayments and Other Receivabl

Prepayments and Other Receivables	12 Months Ended
	Dec. 31, 2019
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Prepayments and Other Receivables	30 PREPAYMENTS AND OTHER RECEIVABLES 2019 RMB million 2018 RMB million Value added tax recoverable 6,991 5,484 Value added tax refundable 800 979 Subsidy receivable 2,072 2,092 Prepaid corporate income tax 608 306 Advance to suppliers 129 222 Prepaid aircraft operating lease rentals — 478 Refundable advanced payment on acquisition of aircraft 538 — Rebate receivables on aircraft acquisitions 1,582 1,399 Amounts due from related parties (Note 48(c)(i)) 776 278 Deposits relating to aircraft held under leases 29 13 Other deposits 168 194 Others 663 577 14,356 12,022 Provision for impairment of other receivables (263 ) (246 ) 14,093 11,776 Set out below are the movements of loss allowances measured at 12-month 12-month ECLs Lifetime ECLs Stage 1 Stage 2 Stage 2 Stage 3 Total As at January 1, 2019 16 — 108 122 246 Transferred - to stage 2 (1 ) — 1 — — Accrual 18 — 4 — 22 Disposal of a subsidiary — — (5 ) — (5 ) As at December 31, 2019 33 — 108 122 263 12-month ECLs Lifetime ECLs Stage 1 Stage 2 Stage 2 Stage 3 Total As at January 1, 2018 4 — 72 122 198 Transferred - to stage 2 (1 ) — 1 — — Accrual 13 — 36 — 49 Reversal — — (1 ) — (1 ) As at December 31, 2018 16 — 108 122 246 The gross carrying amounts of the financial assets affecting the loss allowances above are as follows. 12-month ECLs Lifetime ECLs Stage 1 Stage 2 Stage 2 Stage 3 Total As at January 1, 2019 2,298 298 259 122 2,977 Transferred - to stage 2 (160 ) 160 — — — Accrual 1,066 — (265 ) — 801 Reversal (26 ) — (17 ) — (43 ) As at December 31, 2019 3,178 458 (23 ) 122 3,735 12-month ECLs Lifetime ECLs Stage 1 Stage 2 Stage 2 Stage 3 Total As at January 1, 2018 2,394 — 25 122 2,541 Transferred - to stage 2 (399 ) 298 101 — — Accrual 303 — 138 — 441 Reversal — — (5 ) — (5 ) As at December 31, 2018 2,298 298 259 122 2,977

Restricted Bank Deposits and Sh

Restricted Bank Deposits and Short-term Bank Deposits	12 Months Ended
	Dec. 31, 2019
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Restricted Bank Deposits and Short-term Bank Deposits	31 RESTRICTED BANK DEPOSITS AND SHORT-TERM BANK DEPOSITS 2019 RMB million 2018 RMB million Restricted bank deposits 6 16

Cash and Cash Equivalents

Cash and Cash Equivalents	12 Months Ended
	Dec. 31, 2019
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Cash and Cash Equivalents	32 CASH AND CASH EQUIVALENTS 2019 RMB million 2018 RMB million Cash 1 1 Bank balances 1,349 645 1,350 646 At the end of the reporting period, the cash and bank balances of the Group denominated in RMB amounted to RMB547 million (2018: RMB330 million). The RMB is not freely convertible into other currencies. However, under Mainland China’s Foreign Exchange Control Regulations and Administration of Settlement, Sale and Payment of Foreign Exchange Regulations, the Group is permitted to exchange RMB for other currencies through banks authorized to conduct foreign exchange business. Cash at banks earns interest at floating rates based on daily bank deposit rates. The bank balances are deposited with creditworthy banks and financial institutions with no recent history of default.

Assets Classified as Held for S

Assets Classified as Held for Sale	12 Months Ended
	Dec. 31, 2019
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Assets Classified as Held for Sale	33 ASSETS CLASSIFIED AS HELD FOR SALE The Group entered into agreements with China Aviation Supplies Co., Ltd. to dispose of certain flight equipment. The flight equipment with an aggregate carrying amount of RMB6 million (2018: RMB

Trade and Bills Payables

Trade and Bills Payables	12 Months Ended
	Dec. 31, 2019
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Trade and Bills Payables	34 TRADE AND BILLS PAYABLES An aging analysis of the trade and bills payables as at the end of the reporting period, was as follows: 2019 RMB million 2018 RMB million Within 90 days 3,622 3,594 91 to 180 days 52 49 181 to 365 days 94 157 1 to 2 years 40 100 Over 2 years 69 140 3,877 4,040 Balances with related parties included in trade and bills payables are summarized in Note 48(c)(ii). As at December 31, 2019, the Group held no bills payable (2018: RMB4 million).

Contract Liabilities

Contract Liabilities	12 Months Ended
	Dec. 31, 2019
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Contract Liabilities	35 CONTRACT LIABILITIES 2019 RMB million 2018 RMB million Sales in advance of carriage 8,754 7,638 Frequent flyer program (Note 5) 2,057 2,046 Advances from customers 866 712 11,677 10,396 Current portion 10,178 8,811 Non-current 1,499 1,585

Other Payables and Accruals

Other Payables and Accruals	12 Months Ended
	Dec. 31, 2019
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Other Payables and Accruals	36 OTHER PAYABLES AND ACCRUALS 2019 RMB million 2018 RMB million Salaries, wages and benefits 2,794 2,854 Take-off 3,052 2,828 Fuel cost 1,109 1,225 Expenses related to aircraft overhaul conducted 1,810 1,324 Deposits from customers 18 6 Duties and levies payable 1,983 1,792 Food and beverages 253 349 Payments on system services 879 650 Lease rentals of property, plant and equipment 515 411 Other accrued operating expenses 991 701 Payable for purchase of property, plant and equipment 3,454 2,783 Interest payable 1,249 1,189 Pending output value added tax 412 378 Deposits received from ticket sales agents 507 502 Other deposits 570 576 Current portion of other long-term liabilities (Note 41) 294 234 Staff housing allowance 224 265 Amounts due to related parties (Note 48(c)(ii)) 383 1,093 Current portion of post-retirement benefit obligations (Note 40(b)) 165 168 Others 1,940 1,815 22,602 21,143

Obligations Under Finance Lease

Obligations Under Finance Leases	12 Months Ended
	Dec. 31, 2019
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Obligations Under Finance Leases	37 OBLIGATIONS UNDER FINANCE LEASES As at December 31, 2018, the Group had 260 aircraft under finance leases. These leases were classified as finance leases prior to IFRS 16 becoming effective on January 1, 2019. Under the terms of the leases, the Group had the option to purchase, at or near the end of the lease terms, certain aircraft at either fair market value or a percentage of the respective lessors’ defined cost of the aircraft. The obligations under finance leases were principally denominated in USD. At December 31, 2018, the future minimum lease payments under finance leases and their present values were as follows: 2018 RMB million Within one year 11,974 In the second year 12,014 In the third to fifth years, inclusive 30,018 After the fifth year 36,974 Total of minimum lease payments 90,980 Present values of minimum lease payments 79,006 Less: amounts repayable within one year (9,364 ) Non-current portion 68,063

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2019
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Borrowings	38 BORROWINGS 2019 RMB million 2018 RMB million Non-current Long-term bank borrowings – secured (note (a)) 2,995 3,934 – unsecured 828 4,556 Guaranteed bonds (note (b)) 12,784 13,377 Unsecured bonds (note (b)) 9,997 4,000 26,604 25,867 Current Current portion of long-term bank borrowings – secured (note (a)) 939 997 – unsecured 1,009 76 Current portion of guaranteed bonds (note (b)) 2,585 732 Current portion of unsecured bonds (note (b)) — 4,834 Short-term bank borrowings – unsecured 2,200 8,120 Short-term debentures (note (c)) 18,500 14,500 25,233 29,259 51,837 55,126 The borrowings are repayable as follows: 2019 2018 RMB million RMB million Within one year 25,233 29,259 In the second year 8,104 7,469 In the third to fifth years, inclusive 14,821 14,258 After the fifth year 3,679 4,140 Total borrowings 51,837 55,126 Notes: (a) As at December 31, 2019, the secured bank borrowings of the Group were secured by the related aircraft and buildings with a net carrying amount of RMB7,243 million (2018: RMB8,391 million) (Note 17). (b) On March 18, 2013, the Company issued ten-year On July 14, 2016, the Company issued five-year medium-term bonds with a principal amount of RMB4 billion, at an issue price equal to the face value of the bonds. The bonds bear interest at the rate of 3.39% per annum, which is payable annually. The principal of the bonds will mature and become repayable on July 14, 2021. On October 24, 2016, the Company issued ten-year corporate bonds with a total principal amount of RMB3 billion, of which bonds of RMB1.5 billion bear interest at the rate of 3.03% per annum and the remaining bonds of RMB1.5 billion bear interest at the rate of 3.30% per annum. The bonds interest is payable annually. The principal of the bonds will mature and become repayable on October 24, 2026. CEA Holding has unconditionally and irrevocably guaranteed the due payment and performance of the above bonds (Note 48(d)). On November 16, 2017, Eastern Air Overseas issued three-year corporate bonds with a principal amount of SGD500 million, at an issue price equal to the face value of the bonds. The bonds bear interest at the rate of 2.80% per annum, which is payable semi-annually. The principal of the bonds will mature and become repayable on November 16, 2020. The Company has unconditionally and irrevocably guaranteed the due payment and performance of the above bonds. On March 16, 2018, the Company issued three-year Credit Enhanced bonds with a total principal amount of JPY10 billion . On March 16, 2018, the Company issued three-year Credit Enhanced bonds with a total principal amount of JPY20 billion . On March 16, 2018, the Company issued three-year Credit Enhanced bonds with a total principal amount of JPY20 billion. The bonds bear interest at the rate of 0.64% per annum, which is payable semi-annually. The principal of the bonds will mature and become repayable on March 16, 2021. The bonds are secured by a standby letter of credit issued by Industrial and Commercial Bank of China Limited acting through its Shanghai Municipal Branch. On March 7, 2019, the Company issued three-year medium-term bonds with a principal amount of RMB3 billion, at an issue price equal to the face value of the bonds. The bonds bear interest at the rate of 3.70% per annum, which is payable annually. The principal of the bonds will mature and become repayable on March 7, 2022. On August 19, 2019, the Company issued five-year corporate bonds with a total principal amount of RMB3 billion. The bonds bear interest at the rate of 3.60% per annum, which is payable annually. The principal of the bonds will mature and become repayable on August 19, 2024. On December 6, 2019, Eastern Air Overseas issued three-year corporate bonds with a principal amount of KRW300 billion, at an issue price equal to the face value of the bonds. The bonds bear interest at the rate of 2.40% per annum, which is payable annually. The principal of the bonds will mature and become repayable on December 6, 2022. The Company has unconditionally and irrevocably guaranteed the due payment and performance of the above bonds. c) On May 29, 2019, the Company issued short-term debentures with a principal of RMB2 billion and maturity of 267 days. The debentures bear interest at the rate of 3.10% per annum. On June 13, 2019, the Company issued short-term debentures with a principal of RMB3 billion and maturity of 266 days. The debentures bear interest at the rate of 3.15% per annum. On July 3, 2019, the Company issued short-term debentures with a principal of RMB3 billion and maturity of 267 days. The debentures bear interest at the rate of 2.98% per annum. On October 25, 2019, the Company issued short-term debentures with a principal of RMB3 billion and maturity of 179 days. The debentures bear interest at the rate of 2.00% per annum. On November 15, 2019, the Company issued short-term debentures with a principal of RMB3 billion and maturity of 270 days. The debentures bear interest at the rate of 2.00% per annum. On November 26, 2019, the Company issued short-term debentures with a principal of RMB2 billion and maturity of 177 days. The debentures bear interest at the rate of 1.70% per annum. On December 6, 2019, the Company issued short-term debentures with a principal of RMB2.5 billion and maturity of 270 days. The debentures bear interest at the rate of 2.00% per annum. The terms of the long-term borrowings and bonds were summarized as follows: Interest rate and final maturities 2019 2018 RMB million RMB million Long-term bank borrowings RMB denominated interest rates ranging from 2.65% to 3.92% with final maturities through 2024 (2018: 3.10% to 3.48%) 1,828 4,528 USD denominated interest rates ranging from 6-month 6-month 2 6-month 6-month 870 1,469 EUR denominated interest rates at 3 months Euribor+0.5% with final maturities through 2026 (2018: 3 months Euribor+0.5%) 3,073 3,566 Guaranteed bonds RMB denominated interest rates ranging from 3.03% to 5.05% with final maturities through 2026 (2018: 3.03% to 5.05%) 7,796 7,795 SGD denominated interest rates at 2.80% with final maturities through 2020 (2018: 2.80%) 2,585 2,498 JPY denominated interest rates ranging from 0.33% to 0.64% with final maturities through 2021 (2018: 0.33% to 0.64%) 3,197 3,084 KRW denominated interest rate at 2.40% with final maturities through 2022 (2018: 2.05%) 1,791 732 Unsecured bonds RMB denominated interest rates ranging from 3.39% to 3.70% with final maturities through 2024 (2018: from 3.00% to 3.39%) 9,997 8,500 KRW denominated interest rate at 2.85% with final maturities through 2019 (2018: 2.85%) — 334 31,137 32,506 Short-term borrowings of the Group are repayable within one year. As at December 31, 2019, the interest rates relating to such borrowings was 3.30% (2018: 2.97% to 4.48% per annum).

Provision For Lease Return Cost

Provision For Lease Return Costs For Aircraft And Engines	12 Months Ended
	Dec. 31, 2019
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Provision For Lease Return Costs For Aircraft And Engines	39 PROVISION FOR LEASE RETURN COSTS FOR AIRCRAFT AND ENGINES Details of provision for lease return costs for aircraft and engines are as follows: 2019 2018 RMB million RMB million Carrying amount at January 1 2,906 3,019 Effect of adoption IFRS 16 3,654 — Carrying amount At January 1 (restated) 6,560 3,019 Accrual 702 402 Utilization (84 ) (515 ) At December 31 7,178 2,906 Less: current portion (519 ) (145 ) Non-current portion 6,659 2,761

Post-Retirement Benefit Obligat

Post-Retirement Benefit Obligations	12 Months Ended
	Dec. 31, 2019
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Post-Retirement Benefit Obligations	40 POST-RETIREMENT BENEFIT OBLIGATIONS (a) Pension—defined contribution The group companies participate in defined contribution retirement schemes organized by municipal governments of various provinces in which the group companies operate. Substantially all of the Group’s PRC employees are eligible to participate in these defined contribution retirement schemes. Therefore, the employees are entitled to a monthly pension based on certain formulas. The relevant government agencies are responsible for the pension liability to these retired employees. In addition, the group companies have implemented an additional defined contribution retirement pension scheme for eligible employees since 2014. As at December 31, 2019 and 2018, the Group cannot use forfeited contributions to reduce its contributions to the pension schemes. (b) Post-retirement benefits In addition to the above schemes, the Group provides eligible retirees with other post-retirement benefits, including retirement subsidies, transportation allowance as well as other welfare. The expected cost of providing these post-retirement benefits is actuarially determined and recognized by using the projected unit credit method, which involves a number of assumptions and estimates, including inflation rate, discount rate and etc. The plan is exposed to interest rate risk and the risk of changes in the life expectancy for pensioners. The most recent actuarial valuation of the post-retirement benefit obligations was carried out at December 31, 2019 with assistance from a third party consultant using the projected unit credit actuarial valuation method. The post-retirement benefit obligations recognized in the consolidated statement of financial position are as follows: 2019 RMB million 2018 RMB million Post-retirement benefit obligations 2,584 2,712 Less: current portion (165 ) (168 ) Non-current 2,419 2,544 The principal actuarial assumptions utilized as at the end of the reporting period are as follows: 2019 2018 Discount rates for post-retirement benefits 3.40% 3.50% Mortality rate China Insurance Life Mortality China Insurance Life Mortality Table (2010-2013). Table (2010-2013). Annual increase rate of post-retirement medical expenses 6.50% 6.50% Inflation rate of pension benefits 2.50% 2.50% A quantitative sensitivity analysis for significant assumptions at the end of the reporting period is shown below: Increase Increase/ post-retirement Decrease Increase/ post-retirement 2019 Discount rate for post-retirement benefits 0.25 (74 ) 0.25 77 Annual increase rate of pension benefits 1.00 260 1.00 (222 ) Annual increase rate of medical expenses 1.00 36 1.00 (30 ) 2018 Discount rate for post-retirement benefits 0.25 (80 ) 0.25 84 Annual increase rate of pension benefits 1.00 288 1.00 (244 ) Annual increase rate of medical expenses 1.00 41 1.00 (34 ) The sensitivity analyzes above have been determined based on a method that extrapolates the impact on net post-retirement benefit obligations as a result of reasonable changes in key assumptions occurring at the end of the reporting period. Expected contributions to be made in the future years out of the post-retirement benefit obligations were as follows: 2019 RMB million 2018 RMB million Within the next 12 months 165 168 Between 2 and 5 years 661 678 Between 6 and 10 years 809 841 Over 10 years 2,534 2,802 Total expected payments 4,169 4,489 The average duration of the post-retirement benefit obligations at the end of 2019 was 13 years (2018: 13 years). The movements in the post-retirement benefit obligations were as follows: 2019 Pension cost charged to profit or loss Remeasurement (gains)/losses January 1 Service cost Net interest Sub-total Actuarial Actuarial Experience Sub-total included comprehensive Benefit December 31 Defined benefit obligations/ benefit liability 2,712 — 92 92 30 — (70 ) (40 ) (180 ) 2,584 2018 Pension cost charged to profit or loss Remeasurement (gains)/losses January 1 Service cost Net interest Sub-total Actuarial Actuarial Experience Sub-total included comprehensive Benefit December 31 Defined benefit obligations/ benefit liability 2,670 — 106 106 184 — (69 ) 115 (179 ) 2,712

Other Long-term Liabilities

Other Long-term Liabilities	12 Months Ended
	Dec. 31, 2019
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Other Long-term Liabilities	41 OTHER LONG-TERM LIABILITIES 2019 2018 RMB million RMB million Long-term duties and levies payable relating to leases 1,487 1,398 Deferred gains in sale and leaseback transactions — 1,115 Deferred gains relating to government grants 152 179 Provision for early retirement benefit obligations and other benefit obligations 295 324 Other long-term payables 638 666 2,572 3,682 Less: current portion included in other payables and accruals (Note 36) (294 ) (234 ) Non-current 2,278 3,448

Share Capital

Share Capital	12 Months Ended
	Dec. 31, 2019
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Share Capital	42 SHARE CAPITAL 2019 2018 RMB million RMB million Registered, issued and fully paid of RMB1.00 each A shares listed on the Shanghai Stock Exchange (“A Shares”) 11,202 9,808 – Tradable shares with trading moratorium 1,394 — – Tradable shares without trading moratorium 9,808 9,808 H shares listed on the Stock Exchange of Hong Kong Limited (“H Shares”) 5,177 4,659 – Tradable shares with trading moratorium 518 — – Tradable shares without trading moratorium 4,659 4,659 16,379 14,467 Pursuant to articles 50 and 51 of the Company’s articles of association, both the listed A shares and listed H shares are registered ordinary shares and carry equal rights. A summary of movements in the Company’s share capital is as follows: Number of million At December 31, 2018 and January 1, 2019 14,467 Issue of shares ( n 1,912 At December 31, 2019 16,379 Note(a) According to the approval of China Securities Regulatory Commission, the Company completed the non-public issuance of 518 million H shares to Shanghai Juneyao Airlines Hong Kong Co., Ltd. on August 29, 2019, raising a total of RMB2,002 million in net funds. The Company also completed the non-public issuance of 1,394 million A shares to four specific investors, including Shanghai Juneyao Airlines Co., Ltd. on August 30, 2019, raising a total of RMB7,440 million in net funds.

Reserves

Reserves	12 Months Ended
	Dec. 31, 2019
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Reserves	43 RESERVES Share Capital Hedging Statutory Other Retained Total RMB million RMB million RMB million RMB million RMB million RMB million RMB million At January 1, 2018 29,540 (778 ) 91 540 (2,038 ) 14,566 41,921 Unrealized gains on cash flow hedges (Note 24) — — 43 — — — 43 Fair value movements in equity investments designated at fair value through other comprehensive income — — — — (248 ) — (248 ) Fair value changes of equity investments designated at fair value through other comprehensive income held by an associate — — — — (24 ) — (24 ) Actuarial gains on post-retirement benefit obligations — — — — (111 ) — (111 ) Transfer from retained profits — — — 30 — (30 ) — Profit for the year — — — — — 2,698 2,698 Final 2017 dividend — — — — — (738 ) (738 ) At December 31, 2018 29,540 (778 ) 134 570 (2,421 ) 16,496 43,541 Effect of adoption of IFRS 16 — — — — — (1,595 ) (1,595 ) At January 1, 2019 (restated) 29,540 (778 ) 134 570 (2,421 ) 14,901 41,946 Unrealized gains on cash flow hedges (Note 24) — — (110 ) — — — (110 ) Fair value movements in equity investments designated at fair value through other comprehensive income — — — — 13 — 13 Fair value changes of equity investments designated at fair value through other comprehensive income held by an associate — — — — 7 — 7 Actuarial gains on post-retirement benefit obligations — — — — 39 — 39 Transfer from retained profits — — — 212 — (212 ) — Profit for the year — — — — — 3,192 3,192 Final 2018 dividend — — — — — — — Issue of shares 7,530 — — — — — 7,530 Others — 11 — — — 1 12 At December 31, 2019 37,070 (767 ) 24 782 (2,362 ) 17,882 52,629 Notes: (a) Capital reserve Capital reserve mainly represents the difference between the fair value of the net assets injected and the nominal amount of the Company’s share capital issued in respect of the group restructuring carried out in June 1996 for the purpose of the Company’s listing. (b) Statutory reserve According to the PRC Company Law, the Company is required to transfer a portion of the profits to the statutory reserve. The transfer to this reserve must be made before distribution of dividends to shareholders and when there are retained profits at the end of the financial year.

Partly-owned Subsidiaries with

Partly-owned Subsidiaries with Material Non-controlling Interests	12 Months Ended
	Dec. 31, 2019
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Partly-owned Subsidiaries with Material Non-controlling Interests	44 PARTLY-OWNED SUBSIDIARIES WITH MATERIAL NON-CONTROLLING Details of the Group’s subsidiaries that have material non-controlling 2019 2018 Percentage of equity interest held by non-controlling CEA Jiangsu 37.44 % 37.44 % CEA Yunnan 9.64 % 9.64 % CEA Wuhan 40.00 % 40.00 % 2019 RMB million 2018 RMB million Profit for the year allocated to non-controlling CEA Jiangsu 115 114 CEA Yunnan 50 33 CEA Wuhan 128 88 Dividends paid to non-controlling 37 56 Dividends paid to non-controlling 45 — Accumulated balances of non-controlling CEA Jiangsu 1,445 1,471 CEA Yunnan 704 674 CEA Wuhan 1,511 1,483 The following tables illustrate the summarized financial information of the above subsidiaries. The amounts disclosed are before any inter-company eliminations: CEA Jiangsu RMB million CEA Yunnan RMB million CEA Wuhan RMB million 2019 Revenue 9,774 11,634 4,743 Total expenses 9,466 11,110 4,424 Profit for the year 308 524 319 Total comprehensive income for the year 309 524 328 Current assets 1,116 575 369 Non-current 12,620 19,210 7,917 Current liabilities 2,486 3,623 1,611 Non-current 7,390 8,859 2,897 Net cash flows from operating activities 1,930 2,457 885 Net cash flows used in investing activities (16 ) (425 ) (222 ) Net cash flows used in financing activities (1,874 ) (2,031 ) (666 ) Effect of foreign exchange rate changes, net — — — Net increase/ (decrease) in cash and cash equivalents 40 1 (3 ) CEA Jiangsu RMB million CEA Yunnan RMB million CEA Wuhan RMB million 2018 Revenue 9,313 10,523 4,559 Total expenses 9,008 10,183 4,340 Profit for the year 305 340 219 Total comprehensive income for the year 297 340 217 Current assets 1,338 379 237 Non-current 9,460 16,018 7,048 Current liabilities 2,116 3,213 1,634 Non-current 4,753 6,196 1,944 Net cash flows from operating activities 1,036 3,686 775 Net cash flows used in investing activities (37 ) (592 ) (534 ) Net cash flows used in financing activities (991 ) (3,099 ) (243 ) Effect of foreign exchange rate changes, net — — — Net increase/ (decrease) in cash and cash equivalents 8 (5 ) (2 )

Disposal of a Subsidiary

Disposal of a Subsidiary	12 Months Ended
	Dec. 31, 2019
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Disposal of a Subsidiary	45 DISPOSAL OF A SUBSIDIARY On March 19, 2019, the Company and Greenland Holdings Corporation Limited (“Greenland Holdings”) entered into a capital injection and share expansion agreement. According to the agreement, Greenland Holdings agreed to inject capital into Shanghai Airlines Tours International (Group) Co., Ltd. (“Shanghai Airlines Tours”), previously a wholly-owned subsidiary of the Company, and subscribe its newly issued shares with monetary capital in an aggregate amount of RMB251 million. As of May 17, 2019, the capital injection and share expansion has been completed. After that, the Company’s equity interest in Shanghai Airlines Tours was diluted to 35%, and Greenland Holdings held 65% of the equity interest in Shanghai Airlines Tours. Shanghai Airlines Tours ceased to be a subsidiary of the Company as a result of the dilution. The details of the assets and liabilities disposed of relating to the disposal of a subsidiary are summarized as follows: At date of disposal Net assets disposed of: Property, plant and equipment 26 Investments in associates 9 Right-of-use assets 10 Other non-current assets 3 Prepayments and other receivables 278 Restricted bank deposits and short-term bank deposits 251 Trade and notes receivables 115 Cash and cash equivalents 90 Trade and bills payables (79 ) Contract liabilities (284 ) Other payables and accruals (378 ) Lease liabilities (10 ) Net assets 31 Gain on disposal of a subsidiary 64 Satisfied by: Investment in an associate 95 An analysis of the net outflow of cash and cash equivalents in respect of the disposal of a subsidiary is as follows: 2019 Cash consideration — Cash and bank balances disposed of 90 Net outflow of cash and cash equivalents in respect of the disposal of a subsidiary (90 )

Notes to the Consolidated State

Notes to the Consolidated Statement of Cash Flows	12 Months Ended
	Dec. 31, 2019
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Notes to the Consolidated Statement of Cash Flows	46 NOTES TO THE CONSOLIDATED STATEMENT OF CASH FLOWS (a) Cash generated from operations 2019 RMB million 2018 RMB million 2017 RMB million Profit before income tax 4,299 3,856 8,610 Adjustments for: Depreciation of property, plant and equipment 9,078 14,616 13,367 Depreciation of right-of-use 12,298 — — Amortization of intangible assets 143 160 143 Depreciation of investment properties 25 26 12 Amortization of lease prepayments — 43 45 Amortization of other non-current 536 468 402 Gains on disposal of property, plant and equipment (22 ) (267 ) (13 ) Gain on disposal of prepayments for land use rights — (210 ) (5 ) Gain on disposal of investment in a subsidiary (64 ) — (1,754 ) Gain on disposal of investment in an associate — (5 ) (12 ) Gain on disposal of available-for-sale — — (4 ) Dividend income from equity investments at fair value through other comprehensive income (19 ) (23 ) — Dividend income from available-for-sale — — (33 ) Dividend income from a financial asset at fair value through profit or loss (3 ) (6 ) — Share of results of associates (265 ) (170 ) (202 ) Share of results of joint ventures (17 ) (34 ) (49 ) Net foreign exchange loss/(gain) 890 1,983 (2,378 ) (Gain)/loss on fair value changes of financial asset at fair value through profit or loss (25 ) 27 — (Gain)/loss on fair value changes of derivative financial instruments — (311 ) 311 Impairment charges 4 318 494 Impairment losses on financial assets, net 16 27 (3 ) Interest income — (110 ) (111 ) Interest expense 5,169 3,727 3,184 Operating profit before working capital changes 32,043 24,115 22,004 Changes in working capital Flight equipment spare parts (457 ) (66 ) (109 ) Trade and notes receivables (275 ) 708 (500 ) Prepayments and other receivables (2,336 ) (2,056 ) (753 ) Sales in advance of carriage — — (569 ) Contract liabilities 1,281 1,051 — Restricted bank deposits and short-term bank deposits 9 35 (8 ) Trade and bills payables (163 ) 856 1,725 Other payables and accruals 1,459 36 340 Staff housing allowances — (36 ) 62 Other long-term liabilities (1,916 ) (525 ) (728 ) Post-retirement benefit obligations (125 ) 42 (217 ) Provision for lease return costs for aircraft and engines 617 (113 ) (139 ) Cash generated from operations 30,137 24,047 21,108 (b) Major non-cash 2019 RMB million 2018 RMB million 2017 RMB million Additions to right-of-use assets and lease liabilities 24,434 — — Finance lease obligations incurred for acquisition of aircraft — 7,945 6,865 * Disposal of a subsidiary of the Company for the current year also comprised a major non-cash transaction as disclosed in Note 45. (c) Changes in liabilities arising from financing activities Bank and RMB million Obligations under RMB million At December 31, 2018 55,126 77,427 Effect of adoption of IFRS 16 — 31,879 At January 1, 2019 (restated) 55,126 109,306 Changes from financing cash flows (3,427 ) (23,895 ) Foreign exchange movement 139 851 Disposal of a subsidiary — (10 ) New leases — 24,023 At December 31, 2019 51,838 110,275 At January 1, 2018 63,801 66,868 Changes from financing cash flows (9,076 ) (9,629 ) Foreign exchange movement 401 1,419 New finance leases — 18,769 At December 31, 2018 55,126 77,427 (d) Total cash outflow for leases The total cash outflow for leases included in the statement of cash flows is as follows: 2019 RMB million Within operating activities (631 ) Within investing activities (1,449 ) Within financing activities (27,789 )

Commitments

Commitments	12 Months Ended
	Dec. 31, 2019
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Commitments	47 COMMITMENTS (a) The Group had the following capital commitments at the end of the reporting period: 2019 RMB million 2018 RMB million Contracted for: – Aircraft, engines and flight equipment ( n 47,822 70,998 – Other property, plant and equipment 4,917 6,481 – Investments 860 590 53,599 78,069 Note: (i) Contracted expenditures for the above aircraft, engines and flight equipment, including deposits prior to delivery, subject to future inflation increase built into the contracts, were expected to be paid as follows: 2019 RMB million 2018 RMB million Within one year 18,388 29,187 In the second year 12,442 24,735 In the third year 11,956 11,809 In the fourth year 3,892 4,674 Over four years 1,144 593 47,822 70,998 The above capital commitments represent the future outflow of cash or other resources. (a) The Group had the following capital commitments at the end of the reporting period (continued): (ii) On March 11, 2019, the Civil Aviation Administration of China ordered all domestic airlines to ground all 737MAX-8 aircraft. The Group (b) Operating lease commitments at December 31, 2018 As at December 31, 2018, the Group had commitments under operating leases to pay future minimum lease rentals as follows: 2018 RMB million Aircraft, engines and flight equipment Within one year 4,990 In the second year 5,371 In the third to fifth years, inclusive 12,041 After the fifth year 14,169 36,571 Land and buildings Within one year 398 In the second year 175 In the third to fifth years, inclusive 59 After the fifth year 75 707 37,278 (c) The Group has various lease contracts that have not yet commenced as at December 31, 2019. The future lease payments for these non-cancellable (d) Lease commitments for short-term leases amounted to RMB 83 million as at December 31, 2019.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Related Party Transactions	48 RELATED PARTY TRANSACTIONS The Group is controlled by CEA Holding, which directly owns 30.97% of the Company’s shares as at December 31, 2019 (2018: 35.06 %). In addition, through CES Global Holdings (Hong Kong) Limited and CES Finance Holding Co., Limited, two wholly-owned subsidiaries of CEA Holding, CEA Holding indirectly owns additional shares of the Company of approximately 16.03% and 2.79% respectively as at December 31, 2019 (2018: 18.15% and 3.16% ). The Company is a state-owned enterprise established in the PRC and is controlled by the PRC government, which also owns a significant portion of the productive assets in the PRC. In accordance with IAS 24 “Related Party Disclosures”, government-related entities and their subsidiaries, directly or indirectly controlled, jointly controlled or significantly influenced by the PRC government are defined as related parties of the Group. On that basis, related parties include CEA Holding and its subsidiaries (other than the Group), other government-related entities and their subsidiaries (“Other State-owned Enterprises”), other entities and corporations over which the Company is able to control or exercise significant influence and key management personnel of the Company as well as their close family members. For the purpose of the related party transaction disclosures, the directors of the Company believe that meaningful information in respect of related party transactions has been adequately disclosed. (a) Nature of related parties that do not control or controlled by the Group: Name of related party Relationship with the Group Eastern Air Group Finance Co., Ltd. (“Eastern Air Finance Company”) Associate of the Company Eastern Aviation Import & Export Co., Ltd. and its subsidiaries (“Eastern Import & Export”) Associate of the Company Shanghai Pratt & Whitney Aircraft Engine Maintenance Co., Ltd. (“Shanghai P&W”) Associate of the Company Eastern Aviation Advertising Service Co., Ltd. and its subsidiaries (“Eastern Advertising”) Associate of the Company Shanghai Collins Aviation Maintenance Service Co., Ltd. (“Collins Aviation”) Associate of the Company Shanghai Airlines Tours International (Group) Co., Ltd. and its subsidiaries (“Shanghai Airlines Tours”) Associate of the Company Beijing Xinghang Aviation Property Co., Ltd. (“Beijing Aviation Property”) Associate of the Company CAE Melbourne Flight Training Pty Limited (“CAE Melbourne”) Joint venture of the Company Shanghai Eastern Union Aviation Wheels & Brakes Maintenance Services Overhaul Engineering Co., Ltd. (“Wheels & Brakes”) Joint venture of the Company Shanghai Technologies Aerospace Co., Ltd. (“Technologies Aerospace”) Joint venture of the Company Eastern China Kaiya System Integration Co., Ltd. (“China Kaiya”) Joint venture of the Company Shanghai Hute Aviation Technology Co., Ltd. (“Shanghai Hute”) Joint venture of the Company CEA Development Co., Limited and its subsidiaries (“CEA Development”) Controlled by the same parent company China Eastern Air Catering Investment Co., Limited and its subsidiaries (“Eastern Air Catering”) Controlled by the same parent company CES International Financial Leasing Corporation Limited and its subsidiaries (“CES Lease Company”) Controlled by the same parent company Shanghai Eastern Airlines Investment Co., Ltd. and its subsidiaries (“Eastern Investment”) Controlled by the same parent company Eastern Air Logistics Co., Ltd. and its subsidiaries (“Eastern Logistics”) Controlled by the same parent company Eastern Airlines Industry Investment Company Limited (“Eastern Airlines Industry Investment”) Controlled by the same parent company CES Finance Holding Co., Limited (“CES Finance”) Controlled by the same parent company and a substantial shareholder of the Company CES Global Holdings (Hong Kong) Limited (“CES Global”) Controlled by the same parent company and a substantial shareholder of the Company Hong Kong Securities Clearing Company Ltd. (“HKSCC”) A substantial shareholder of the Company TravelSky Technology Limited (“TravelSky”) A director and vice president of the Company is a director of Travelsky China Aviation Supplies Holding Company and its subsidiaries (“CASC”) A director and vice president of the Company is a director of CASC Air France-KLM A director and vice president of the Company is a director of AFK Juneyao Airlines Co., Ltd and its subsidiaries (“Juneyao Air”) A director and vice president of the Company is a director of Juneyao Air (b) Related party transactions Pricing policy Nature of transaction Related party and decision 2019 2018 Purchase of goods and services Payments on food and beverages* Eastern Air Catering (i) 1,471 1,317 CEA Development (i) — 78 Eastern Import & Export (i) 56 60 Handling charges for purchase of aircraft, flight equipment, flight equipment spare parts, other property, plant and flight equipment and repairs for aircraft and engines* Eastern Import & Export (i) 142 165 Repairs and maintenance expense Shanghai P&W (i) 1,762 2,394 for aircraft and engines Technologies Aerospace (i) 221 344 Wheels & Brakes (i) 144 129 Shanghai Hute (i) 88 74 XIESA (i) 2 — Payments on cabin cleaning services Eastern Advertising (i) 22 20 Advertising expense* Eastern Advertising (i) 29 19 Payments on system services China Kaiya (i) 16 21 Equipment maintenance fee* Collins Aviation (i) 45 60 CEA Development (i) 119 71 Automobile maintenance service, aircraft maintenance, providing transportation automobile and other products* CEA Development (i) 13 13 Property management and green maintenance expenses* CEA Development (i) 205 102 Payments on hotel accommodation service* CEA Development (i) 134 127 Shanghai Airlines Tours (i) 23 — Payments on construction and management agent Eastern Investment (i) 14 18 Payments on logistics services Eastern Import & Export (i) 49 142 Eastern Logistics (i) 53 — Civil aviation information network services** TravelSky (i) 753 646 Flight equipment spare parts maintenance** CASC (i) 143 189 Flight training fee CAE Melbourne (i) 70 75 Payments on aviation transportation cooperation and support services** AFK (i) 537 425 Payments on aviation transportation cooperation services Juneyao Air (i) 2 — Flight equipment spare parts maintenance and support services** AFK (i) 19 2 Bellyhold space management* Eastern Logistics (i) — 32 Bellyhold space operation cost* Eastern Logistics (i) 310 246 Transfer of pilots Eastern Logistics (i) 11 24 Cargo terminal business support services* Eastern Logistics (i) 481 348 Bellyhold container management Eastern Logistics (i) 13 11 Nature of transaction Related party Pricing policy 2019 RMB million 2018 RMB million Provision of services Contractual revenue from bellyhold space* Eastern Logistics (i) 3,826 2,795 Freight logistics support services* Eastern Logistics (i) 135 126 Software system and support services Eastern Logistics (i) 4 42 Transfer of freight depots and equipment Eastern Logistics (i) — 28 Media royalty fee Eastern Advertising (i) 15 14 Aviation transportation cooperation and support services** AFK (i) 593 728 Aviation transportation cooperation services Juneyao Air (i) 11 — Flight equipment spare parts maintenance and support services Juneyao Air (i) 41 — Lease p Lease payments for land and buildings under short-term leases* (2018: Land and building rental) CEA Holding (ii) 40 33 Eastern Investment (ii) 83 — Settlements of lease liabilities on aircraft and engines* (2018: Payments on operating leases and finance leases) CES Lease Company (ii) 5,779 3,984 Interest expense Interest expense on loans CEA Holding (iii) 27 13 Eastern Air Finance Company (iii) 5 — Interest income Interest income on deposits Eastern Air Finance Company (iii) 15 26 (i) The Group’s pricing policies on goods and services purchased from and provided to related parties are mutually agreed between contract parties. (ii) The Group’s pricing policies on related party lease payments are mutually agreed between contract parties. (iii) The Group’s pricing policies on related party interest rates are mutually agreed based on benchmark interest rates. * These related party transactions also constitute connected transactions or continuing connected transactions as defined in Chapter 14A of the Rules Governing the Listing of Securities on the Stock Exchange (the “Listing Rules”). ** These related party transactions constitute continuing connected transactions pursuant to the Rules Governing the Listing of Stocks on the Shanghai Stock Exchange. During the years ended December 31, 2019 and 2018, the Group’s significant transactions with entities that are controlled, jointly controlled or significantly influenced by the PRC government mainly include most of its bank deposits/borrowings and the corresponding interest income/expense and part of sales and purchases of goods and services. The price and other terms of such transactions are set out in the agreements governing these transactions or as mutually agreed. (c) Balances with related parties (i) Amounts due from related parties 2019 RMB million 2018 RMB million Trade and notes receivables Eastern Logistics 295 — CASC 23 — Juneyao Air 10 — Eastern Air Catering 1 1 Others 5 — 334 1 2019 RMB million 2018 RMB million Prepayments and other receivables Eastern Import & Export 272 133 Technologies Aerospace 7 31 Eastern Air Catering 6 16 Eastern Advertising 28 28 CEA Development 7 7 CEA Holding — 25 CASC 13 12 CES Global — 3 TravelSky 7 — Juneyao Air 10 — Eastern Air Finance Company 405 — Others 21 23 776 278 All the amounts due from related parties are trade in nature, interest-free and payable within normal credit terms. (ii) Amounts due to related parties 2019 RMB million 2018 RMB million Trade and bills payables Eastern Import & Export 421 229 Eastern Logistics — 167 Eastern Air Catering 390 272 Technologies Aerospace 104 141 CEA Development 76 15 Shanghai P&W 465 — Collins Aviation 7 1 CEA Holding 18 13 CASC 17 18 Shanghai Hute 13 15 TravelSky 22 333 Wheels & Brakes 17 14 Shanghai Airlines Tours 3 — Beijing Aviation Property 101 — Others 7 1 1,661 1,219 2019 2018 Other payables and accruals Eastern Import & Export 5 129 Shanghai P&W — 315 Eastern Air Catering 2 1 CEA Holding 111 104 Eastern Advertising — 3 China Kaiya — 2 CEA Development 1 49 CAE Melbourne — 311 Eastern Investment 86 10 CES Lease Company 166 164 CASC 2 2 XIESA 2 — Others 8 3 383 1,093 2019 RMB million 2018 RMB million Contract liabilities Eastern Logistics — 6 2019 RMB million 2018 RMB million Lease liabilities (2018: Obligations under finance leases) CES Lease Company 42,848 30,190 Except for the amounts due to CES Lease Company, which are related to the aircraft under leases, all other amounts due to related parties are interest-free and payable within normal credit terms given by trade creditors. (iii) Short-term deposits, loan and borrowings with related parties Average interest rate 2019 2018 2019 2018 RMB million RMB million Short-term deposits (included in cash and cash equivalents) Eastern Air Finance Company 0.35 % 0.35 % 1,122 282 Long-term borrowings (included in borrowings) CEA Holding 3.86 % 3.89 % 828 528 Loan to a joint venture CAE Melbourne 3.74 % 3.74 % 15 20 (d) Guarantees by the holding company As at December 31, 2019, bonds of the Group guaranteed by CEA Holding amounted to RMB7.8 billion (2018: RMB7.8 billion). (e) Key management compensation The compensation paid or payable to key management for employee services mainly comprising salaries and other short-term employee benefits was analysed as follows: 2019 RMB million 2018 RMB million Directors and supervisors 1 2 Senior management 8 8 9 10

Financial Instruments by Catego

Financial Instruments by Category	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Financial Instruments by Category	49 FINANCIAL INSTRUMENTS BY CATEGORY The carrying amounts of each of the categories of financial instruments as at the end of the reporting period are as follows: 2019 Financial assets at fair value through profit or loss RMB million Financial assets at fair value through other comprehensive income RMB million Financial assets at amortized RMB million Derivatives designated as hedging instruments RMB million Total RMB million Financial assets Equity investments designated at fair value through other comprehensive income — 1,274 — — 1,274 Derivative financial instruments — — — 70 70 Financial assets included in other non-current — — 180 — 180 Trade and notes receivables — — 1,717 — 1,717 Financial asset at fair value through profit or loss 121 — — — 121 Financial assets included in prepayments and other receivables — — 11,711 — 11,711 Restricted bank deposits and short-term bank deposits — — 6 — 6 Cash and cash equivalents — — 1,350 — 1,350 Total 121 1,274 14,964 70 16,429 Financial liabilities at amortized cost RMB million Derivatives designated as hedging instruments RMB million Total RMB million Financial liabilities Trade and bills payables 3,877 — 3,877 Financial liabilities included in other payables and accruals 22,602 — 22,602 Lease liabilities 110,275 — 110,275 Borrowings 51,837 — 51,837 Derivative financial instruments — 23 23 Total 188,591 23 188,614 2018 Financial assets at fair value through profit or loss RMB million Financial assets at fair value through other comprehensive income RMB million Financial assets at amortized RMB million Derivatives designated as hedging instruments RMB million Total RMB million Financial assets Equity investments designated at fair value through other comprehensive income — 1,247 — — 1,247 Derivative financial instruments — — — 223 223 Financial assets included in other non-current — — 190 — 190 Trade and notes receivables — — 1,436 — 1,436 Financial asset at fair value through profit or loss 96 — — 96 Financial assets included in prepayments and other receivables — — 2,825 — 2,825 Restricted bank deposits and short-term bank deposits — — 16 — 16 Cash and cash equivalents — — 646 — 646 Total 96 1,247 5,113 223 6,679 Financial liabilities at amortized cost RMB million Derivatives designated as hedging instruments RMB million Total RMB million Financial liabilities Trade and bills payables 4,040 — 4,040 Financial liabilities included in other payables and accruals 21,143 — 21,143 Obligations under finance leases 77,427 — 77,427 Borrowings 55,126 — 55,126 Derivative financial instruments — 29 29 Total 157,736 29 157,765

Fair Value and Fair Value Hiera

Fair Value and Fair Value Hierarchy of Financial Instruments	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Fair Value and Fair Value Hierarchy of Financial Instruments	50 FAIR VALUE AND FAIR VALUE HIERARCHY OF FINANCIAL INSTRUMENTS The carrying amounts and fair values of the Group’s financial instruments, other than those with carrying amounts that reasonably approximate to fair values, were as follows: December 31, 2019 December 31, 2018 Carrying amounts RMB million Fair values RMB million Carrying amounts RMB million Fair values RMB million Financial assets Equity investments designated at fair value through other comprehensive income 1,274 1,274 1,247 1,247 Financial asset at fair value through profit or loss 121 121 96 96 Derivative financial assets 70 70 223 223 Deposits relating to aircraft held under leases included in other non-current 156 148 177 154 Total 1,621 1,613 1,743 1,720 Financial liabilities Derivative financial liabilities 23 23 29 29 Long-term borrowings 26,604 23,754 25,867 25,875 Lease liabilities 94,685 89,491 — — Obligations under finance leases — — 68,063 64,521 Total 121,312 113,268 93,959 90,425 Management has assessed that the fair values of cash and cash equivalents, restricted bank deposits and short-term bank deposits, trade and notes receivables, trade and bills payables, financial assets included in prepayments and other receivables, financial liabilities included in other payables and accruals, short-term bank borrowings and short-term guaranteed bonds approximate to their carrying amounts largely due to the short-term maturities of these instruments. The fair values of the deposits relating to aircraft held under leases included in other non-current The Group enters into derivative financial instruments, including forward currency contracts and interest rate swaps with various counterparties, principally financial institutions with high credit ratings. Derivative financial instruments are measured using valuation techniques similar to forward pricing and swap models, using present value calculations. The models incorporate various market observable inputs including the foreign exchange spot and forward rates and interest rate curves. As at December 31, 2019, the mark-to-market The fair values of listed equity investments are based on quoted market prices. The fair values of unlisted equity investments designated at fair value through other comprehensive income, have been estimated using a market-based valuation technique based on assumptions that are not supported by observable market prices or rates. The valuation requires the directors to determine comparable public companies (peers) based on industry, size, leverage and strategy, and to calculate an appropriate price multiple, such as enterprise value to earnings before interest, taxes, depreciation and amortization (“EV/EBITDA”) multiple and price to earnings (“P/E”) multiple, for each comparable company identified. The multiple is calculated by dividing the enterprise value of the comparable company by an earnings measure. The trading multiple is then discounted for considerations such as illiquidity and size differences between the comparable companies based on company-specific facts and circumstances. The discounted multiple is applied to the corresponding earnings measure of the unlisted equity investments to measure the fair value. The directors believe that the estimated fair values resulting from the valuation technique, which are recorded in the consolidated statement of financial position, and the related changes in fair values, which are recorded in other comprehensive income, are reasonable, and that they were the most appropriate values at the end of the reporting period. Set out below is a summary of significant unobservable inputs to the valuation of financial instruments together with a quantitative sensitivity analysis as at December 31, 2019 and 2018: Valuation technique Significant unobservable input Range Sensitivity of fair value to the input Unlisted equity investments Valuation multiples Discount for lack of marketability 2019: 20% to 35% (2018: 19% to 41%) 1% (2018: 1%) increase/decrease in multiple would result in increase/ decrease in fair value by RMB11 million (2018: RMB11 million) The discount for lack of marketability represents the amounts of premiums and discounts determined by the Group that market participants would take into account when pricing the investments. Fair value hierarchy The following tables illustrate the fair value measurement hierarchy of the Group’s financial instruments: Assets and liabilities measured at fair value: As at December 31, 2019 Fair value measurement using Quoted prices in active markets (Level 1) RMB million Significant observable inputs (Level 2) RMB million Significant unobservable inputs (Level 3) RMB million Total RMB million Assets Equity investments designated at fair value through other comprehensive income 496 — 778 1,274 Derivative financial assets -Interest rate swaps — 70 — 70 Financial asset at fair value through profit or loss 121 — — 121 Total 617 70 778 1,465 Liabilities Derivative financial liabilities -Forward currency contracts — 23 — 23 Total — 23 — 23 As at December 31, 2018 Fair value measurement using Quoted prices Significant Significant (Level 3) Total RMB million RMB million RMB million RMB million Assets Equity investments designated at fair value through other comprehensive income 510 — 737 1,247 Derivative financial assets -Interest rate swaps — 223 — 223 Financial asset at fair value through profit or loss 96 — — 96 Total 606 223 737 1,566 Liabilities Derivative financial liabilities -Forward currency contracts — 29 — 29 Total — 29 — 29 During the year, there were no transfers of fair value measurements between Level 1 and Level 2 and no transfers into or out of Level 3 for both financial assets and financial liabilities (2018: Nil). Assets and liabilities for which fair values are disclosed: As at December 31, 2019 Fair value measurement using Quoted prices Significant Significant (Level 3) Total RMB million RMB million RMB million RMB million Assets Deposits relating to aircraft held under leases included in other non-current — 148 — 148 Liabilities Long-term borrowings 2,897 20,857 — 23,754 Lease liabilities — 89,491 — 89,491 2,897 110,496 — 113,393 As at December 31, 2018 Fair value measurement using Quoted prices Significant Significant (Level 3) Total RMB million RMB million RMB million RMB million Assets Deposits relating to aircraft held under leases included in other non-current — 154 — 154 Liabilities Long-term borrowings 2,861 23,014 — 25,875 Obligations under finance leases — 64,521 — 64,521 2,861 87,535 — 90,396

Financial Risk Management Objec

Financial Risk Management Objectives and Policies	12 Months Ended
	Dec. 31, 2019
Investments accounted for using equity method [abstract]
Financial Risk Management Objectives and Policies	51 FINANCIAL RISK MANAGEMENT OBJECTIVES AND POLICIES The Group’s activities expose it to a variety of financial risks: market risk (including foreign currency risk, interest rate risk, fuel price risk and equity price risk), credit risk and liquidity risk. The Group’s overall risk management program focuses on the unpredictability of financial markets and seeks to minimize potential adverse effects on the Group’s financial performance. The Group uses derivative financial instruments to manage risk exposures whenever management considers necessary. Risk management is carried out by a central treasury department (the “Group Treasury”) under policies approved by the Board. The Group Treasury identifies, evaluates and hedges financial risks in close cooperation with the Group’s operating units. The overall risk management strategies, as well as written policies covering specific areas, such as foreign currency risk, interest rate risk, credit risk, use of derivative financial instruments and non-derivative Foreign currency risk The Group operates its business in many countries and territories. The Group generates its revenue in different currencies, and the amount of its foreign currency liabilities at the end of the period is much higher than that of its foreign currency assets. The Group’s major liability item (mainly resulting from purchases of aircraft) is mainly priced and settled in foreign currencies, primarily USD. The Group is exposed to currency risks from fluctuations in various foreign currency exchange rates against RMB. The RMB is not freely convertible into other currencies, however, under Mainland China’s Foreign Exchange Control Regulations and Administration of Settlement, Sale and Payment of Foreign Exchange Regulations, the Group is permitted to exchange RMB for other currencies through banks authori z In addition, fluctuations in foreign currency exchange rates will affect the Group’s future costs for purchases of aircraft, flight equipment and aviation fuel, and take-off The Group entered into certain forward currency contracts to manage part of the foreign currency risks. As at December 31, 2019, the forward currency contracts at notional value were RMB5,414 million. Details of the forward currency contracts are disclosed in Note 24 to the consolidated financial statements. The following tables detail the Group’s exposure to major currency risk at the reporting dates: 2019 USD EUR SGD KRW RMB million RMB million RMB million RMB million Trade receivables 28 47 5 10 Cash and cash equivalents 635 63 5 11 Other receivables 2,065 3 1 130 Other non-current 180 — — — Trade and other payables (105 ) (3 ) — — Lease liabilities (45,674 ) — (397 ) — Borrowings (870 ) (3,073 ) (2,587 ) (1,810 ) 2018 USD EUR SGD KRW RMB million RMB million RMB million RMB million Trade receivables 75 55 5 25 Cash and cash equivalents 124 47 10 — Other receivables — 2 1 131 Other non-current 190 — — — Trade and other payables (144 ) (2 ) (5 ) — Obligations under finance leases (25,376 ) — (514 ) — Borrowings (3,139 ) (3,566 ) (2,503 ) (1,066 ) The following tables indicate the approximate change in the Group’s consolidated statement of profit or loss and other comprehensive income in response to a 1% appreciation or depreciation of the RMB against the following major currencies at the reporting dates: 2019 2018 Effect on Effect on other Effect on Effect on other RMB million RMB million RMB million RMB million If RMB (weakens)/strengthens against USD (328)/328 41/(41) (178)/178 34/(34) If RMB (weakens)/strengthens against EUR (22)/22 — (26)/26 — If RMB (weakens)/strengthens against SGD (22)/22 — (23)/23 — If RMB (weakens)/strengthens against KRW (12)/12 — (7)/7 — Interest rate risk The Group’s interest rate risk primarily arises from borrowings and lease liabilities (2018: obligations under finance leases). Borrowings issued at variable rates expose the Group to cash flow interest rate risk. Borrowings and lease liabilities issued at fixed rates expose the Group to fair value interest rate risk. The Group determines the proportion of borrowings and lease liabilities issued at variable rates and fixed rates based on the market environment. The Group’s finance department has been monitoring the level of interest rates. The increase in the interest rates will increase the interest costs of borrowings and lease liabilities issued at variable rates, which will further impact the performance of the Group. To hedge against the variability in the cash flows arising from a change in market interest rates, the Group has entered into certain interest rate swaps to swap variable rates into fixed rates. The interest rates and terms of repayment of borrowings made to the Group and interest rate swaps are disclosed in Notes 38 and 24 to the consolidated financial statements. The following tables detail the interest rate profiles of the Group’s interest-bearing financial instruments at the reporting dates: 2019 2018 RMB million RMB million Floating rate instruments Cash and cash equivalents 1,350 646 Restricted bank deposits and short-term bank deposits 6 16 Borrowings (3,943 ) (9,705 ) Lease liabilities/Obligations under finance leases (49,851 ) (50,761 ) Interest rate swaps at notional amount 6,194 7,566 2019 2018 RMB million RMB million Fixed rate instruments Borrowings (47,929 ) (45,477 ) Lease liabilities/Obligations under finance leases (60,423 ) (26,666 ) The following table indicates the approximate change in the Group’s profit or loss and other comprehensive income, taking the interest rate swap into consideration, if interest rate had been 25 basis points higher with all other variables held constant: 2019 2018 Effect on Effect on other Effect on Effect on other RMB million RMB million RMB million RMB million Floating rate instruments (98 ) 12 (112 ) 14 Fuel price risk The Group’s results of operations may be significantly affected by fluctuations in fuel prices which is a major expense component for the Group. Aircraft fuel accounted for approximately 29% of the Group’s operating expenses (2018: 33%). For the year ended December 31, 2019, if fuel price had been 5% higher/lower with all other variables held constant, the Group’s fuel cost would have been RMB1,710 million higher/lower (2018: RMB1,684 million higher/lower). As at December 31, 2019 and 2018, the Group had no crude oil option contracts. Credit risk The Group’s credit risk is primarily attributable to cash and cash equivalents, deposits and derivative financial instruments with banks and financial institutions, as well as credit exposures to sales agents. A significant portion of the Group’s air tickets is sold by sales agents participating in the Billing and Settlements Plan (“BSP”), a clearing system between airlines and sales agents organized by the International Air Transportation Association. The balance due from BSP agents amounted to approximately RMB835 million as at December 31, 2019 (2018: approximately RMB637 million). The credit risk exposure to BSP agents and the remaining trade and notes receivables are maintained by the Group on an on-going The Group’s cash management policy is to deposit cash and cash equivalents mainly in state-owned banks and other reputable banks and financial institutions. The Group also deposits cash and cash equivalents in an associate financial institution owned by its holding company (Note 48(c)(iii)). Management does not expect any loss to arise from non-performance Transactions in relation to derivative financial instruments are only carried out with reputable banks and financial institutions. The Group has policies that limit the amount of credit exposure to any bank and financial institution. Management does not expect any losses from non-performance Liquidity risk The Group’s primary cash requirements are for day-to-day The table below analyses the Group’s financial liabilities that will be settled into relevant maturity groupings based on the remaining period at the reporting date to the contractual maturity date. The amounts disclosed in the table are the contractual undiscounted cash flows. Less than 1 year 1 to 2 years 2 to 5 years Over 5 years Total RMB million RMB million RMB million RMB million RMB million At December 31, 2019 Borrowings 26,422 8,796 15,882 3,872 54,972 Lease liabilities 19,870 17,691 44,919 47,431 129,911 Trade, bills and other payables 26,479 — — — 26,479 Total 72,771 26,487 60,801 51,303 211,362 Less than 1 year 1 to 2 years 2 to 5 years Over 5 years Total RMB million RMB million RMB million RMB million RMB million At December 31, 2018 Borrowings 30,813 8,074 15,500 4,431 58,818 Obligations under finance leases 11,974 12,014 30,018 36,974 90,980 Trade, bills and other payables 19,747 — — — 19,747 Total 62,534 20,088 45,518 41,405 169,545 Equity price risk The Group is exposed to equity price risk arising from individual equity investments included in financial asset at fair value through profit or loss (Note 29) and equity investments designated at fair value through other comprehensive income (Note 23) as at December 31, 2019. The Group’s listed investments are listed on the Hong Kong and Shanghai stock exchanges and are valued at quoted market prices at the end of the reporting period. The market equity indices for the following stock exchanges, at the close of business of the nearest trading day in the year to the end of the reporting period, and their respective highest and lowest points during the year were as follows: December 31, High/Low 2019 December 31, High/Low 2018 Hong Kong – Hang Seng Index 28,190 30,157/25,064 25,846 33,154/24,586 Shanghai – A Share Index 3,196 3,426/2,580 2,611 3,728/2,600 The following table demonstrates the sensitivity to every 10% change in the fair values of the equity investments, with all other variables held constant, based on their carrying amounts at the end of the reporting period. For the purpose of this analysis, for the equity investments at fair value through other comprehensive income, the impact is deemed to be on the fair value reserve as at December 31, 2019. Carrying amount RMB million Increase/ (decrease) RMB million Increase/(decrease) RMB million 2019 Investments listed in: Hong Kong – Equity investment designated at fair value through other comprehensive income 496 — 37/(37) Shanghai – Financial asset at fair value through profit or loss 121 9/(9) — Unlisted investments at fair value: – Equity investment designated at fair value through other comprehensive income 778 — 58/(58) 2018 Investments listed in: Hong Kong – Equity investment designated at fair value through other comprehensive income 510 — 38/(38) Shanghai – Financial asset at fair value through profit or loss 96 7/(7) — Unlisted investments at fair value: – Equity investment designated at fair value through other comprehensive income 737 — 55/(55) Capital management The primary objectives of the Group’s capital management are to safeguard the Group’s ability to continue as a going concern and to maintain healthy capital ratios in order to support its business and maximize shareholders’ value. The Group manages its capital structure and makes adjustments to it in light of changes in economic conditions and the risk characteristics of the underlying assets. To maintain or adjust the capital structure, the Group may adjust the dividend payment to shareholders, return capital to shareholders or issue new shares. The Group is not subject to any externally imposed capital requirements. No changes were made in the objectives, policies or processes for managing capital during the years ended December 31, 2019 and December 31, 2018. The Group monitors capital on the basis of the debt ratio, which is calculated as total liabilities divided by total assets. The debt ratios as at the end of the reporting periods were as follows: December 31, RMB million January 1, RMB million December 31, RMB million Total liabilities 212,539 211,750 177,416 Total assets 285,185 271,593 239,017 Debt ratio 75 % 79 % 74 % Note: The Group has adopted IFRS 16 using the modified retrospective approach and the effect of the initial adoption is adjusted against the opening balances as at January 1, 2019 with no adjustments to the comparative amounts as at December 31, 2018. This resulted in a decrease in the Group’s net assets and hence the Group’s debt ratio increased from 74% to 79% on January 1, 2019 when compared with the position as at December 31, 2018.

Events After the Reporting Peri

Events After the Reporting Period	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Events After the Reporting Period	52 EVENTS AFTER THE REPORTING PERIOD Since January 2020, the coronavirus pandemic (“the COVID-19”) has spread across China and other countries, and governments have implemented a series of measures including travel restrictions and quarantines to contain the pandemic , which adversely affected the transport industry where the Group operates. In response to the COVID-19, the Group adjusted the operating strategy, temporarily suspended or made adjustment on the operation of flights on some routes to safeguard the safety and health of passengers and employees, and deployed additional cargo capacity for pandemic prevention materials. The Group will dynamically optimize and adjust its capacity based on the progress of pandemic prevention and control and the recovery of market demand. The development and evolution of the COVID-19 in China and globally still has great uncertainty in the duration and severity, which may further amplify the adverse impact and delay on the recovery of airlines industry and travel demand. Given the uncertainty about the situation, the Group currently cannot estimate the impact to the financial performance and cash flows for the year 2020. On March 31, 2020, the Board approved the 2019 profit distribution plan to propose cash dividend for 2019 of RMB0.050 per share (before tax), totaling RMB 0.819 billion (before tax) based on 16,379,509,203 shares of the Company. The aforesaid profit distribution proposal is subject to approval by the shareholders at the forthcoming 2019 annual general meeting of the Company.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2019
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Segmental reporting	Segmental reporting Operating segments are reported in a manner consistent with the internal reporting provided to the chief operating decision-maker (“CODM”). The CODM, who is responsible for allocating resources and assessing performance of the operating segments, has been identified as the office of the General Manager that makes strategic decisions.
Investments in associates and joint ventures	Investments in associates and joint ventures An associate is an entity in which the Group has a long-term interest of generally not less than 20% of the equity voting rights and over which it is in a position to exercise significant influence. Significant influence is the power to participate in the financial and operating policy decisions of the investee, but is not control or joint control over those policies. A joint venture is a type of joint arrangement whereby the parties that have joint control of the arrangement have rights to the net assets of the joint venture. Joint control is the contractually agreed sharing of control of an arrangement, which exists only when decisions about the relevant activities require the unanimous consent of the parties sharing control. The Group’s investments in associates and joint ventures are stated in the consolidated statement of financial position at the Group’s share of net assets under the equity method of accounting, less any impairment losses. Adjustments are made to bring into line any dissimilar accounting policies that may exist. The Group’s share of the post-acquisition results and other comprehensive income of associates and joint ventures is included in the consolidated statement of profit or loss and other comprehensive income. In addition, when there has been a change recognized directly in the equity of the associate or joint venture, the Group recognizes its share of any changes, when applicable, in the consolidated statement of changes in equity. Unrealized gains and losses resulting from transactions between the Group and its associates or joint ventures are eliminated to the extent of the Group’s investments in the associates or joint ventures, except where unrealized losses provide evidence of an impairment of the asset transferred. Goodwill arising from the acquisition of associates or joint ventures is included as part of the Group’s investments in associates or joint ventures. If an investment in an associate becomes an investment in a joint venture or vice versa, the retained interest is not remeasured. Instead, the investment continues to be accounted for under the equity method. In all other cases, upon loss of significant influence over the associate or joint control over the joint venture, the Group measures and recognizes any retained investment at its fair value. Any difference between the carrying amount of the associate or joint venture upon loss of significant influence or joint control and the fair value of the retained investment and proceeds from disposal is recognized in profit or loss. When an investment in an associate or a joint venture is classified as held for sale, it is accounted for in accordance with IFRS 5 Non-current
Foreign currencies	Foreign currencies (i) Functional currency Items included in the financial statements of each of the Group’s entities are measured using the currency of the primary economic environment in which the entity operates (the “functional currency”). The financial statements are presented in “RMB”, which is the Company’s functional currency. (ii) Transactions and balances Foreign currency transactions are translated into the functional currency using the exchange rates prevailing at the dates of the transactions. Foreign exchange gains and losses resulting from the settlement of such transactions and from the translation at year-end Foreign exchange gains and losses that relate to borrowings and cash and cash equivalents are presented in profit or loss within “finance income” or “finance costs”.
Revenue recognition	Revenue recognition (applicable from January 1, 2018) Revenue from contracts with customers Revenue from contracts with customers is recognized when control of goods or services is transferred to the customers at an amount that reflects the consideration to which the Group expects to be entitled in exchange for those goods or services. When the consideration in a contract includes a variable amount, the amount of consideration is estimated to which the Group will be entitled in exchange for transferring the goods or services to the customer. The variable consideration is estimated at contract inception and constrained until it is highly probable that a significant revenue reversal in the amount of cumulative revenue recognized will not occur when the associated uncertainty with the variable consideration is subsequently resolved. When the contract contains a financing component which provides the customer with a significant benefit of financing the transfer of goods or services to the customer for more than one year, revenue is measured at the present value of the amount receivable, discounted using the discount rate that would be reflected in a separate financing transaction between the Group and the customer at contract inception. When the contract contains a financing component which provides the Group with a significant financial benefit for more than one year, revenue recognized under the contract includes the interest expense accreted on the contract liability under the effective interest method. For a contract where the period between the payment by the customer and the transfer of the promised goods or services is one year or less, the transaction price is not adjusted for the effects of a significant financing component, using the practical expedient in IFRS 15. (a) Passenger, cargo and mail revenues are recognized as traffic revenue when the transportation is provided or when ticket breakage occurs. The value of sold but unused tickets is included in contract liabilities as sales in advance of carriage (“SIAC”). The Group estimates the value of passenger ticket breakage based on historical trends and experience and recognizes revenue at the scheduled flight date. (b) Revenues from the provision of ground services, tour services, ticket cancellation services and other travel related services are recognized when the services are rendered. (c) Commission income represents amounts earned from other carriers in respect of sales made by the Group on their behalf, and is recognized upon ticket sales. (d) The Group operates a frequent flyer program called “Eastern Miles” that issues mileage points to program members based on accumulated mileage. The Group defers a portion of passenger revenue attributable to the mileage points issued based on the relative standalone selling price approach and recognizes revenue when the mileage points are redeemed and performance obligations are fulfilled or the mileage points expire unused. The standalone selling price of the mileage points was estimated based on the historical prices of equivalent flights and goods provided for mileage points redeemed and was adjusted for mileage points that are not expected to be redeemed (“mileage points breakage”). (e) Revenue from the sale of goods is recognized at the point in time when control of the asset is transferred to the customer. Revenue from other sources Rental income is recognized on a time proportion basis over the lease terms. Variable lease payments that do not depend on an index or a rate are recognized as income in the accounting period in which they are incurred. Other income Interest income is recognized on an accrual basis using the effective interest method by applying the rate that exactly discounts the estimated future cash receipts over the expected life of the financial instrument or a shorter period, when appropriate, to the net carrying amount of the financial asset. Dividend income is recognized when the shareholders’ right to receive payment has been established, it is probable that the economic benefits associated with the dividend will flow to the Group and the amount of the dividend can be measured reliably. Contract liabilities (applicable from January 1, 2018) A contract liability is recognized when a payment is received or a payment is due (whichever is earlier) from a customer before the Group transfers the related goods or services. Contract liabilities are recognized as revenue when the Group performs under the contract (i.e., transfers control of the related goods or services to the customer). Revenue recognition (applicable before January 1, 2018) Revenue comprises the fair value of the consideration received or receivable for the provision of services and the sale of goods in the ordinary course of the Group’s activities. Revenue is stated net of business taxes or value-added taxes, returns, rebates and discounts and after eliminating sales within the Group. Revenue is recognized when it is probable that the economic benefits will flow to the Group and when the revenue can be measured reliably, on the following basis: (i) Traffic revenues Passenger, cargo and mail revenues are recognized as traffic revenues when the transportation services are provided. The value of sold but unused tickets is recognized as sales in advance of carriage (“SIAC”). (ii) Ground service income and tour operation revenues Revenues from the provision of ground services, tour, travel services and other travel related services are recognized when the services are rendered. (iii) Cargo handling income Revenues from the provision of cargo handling services are recognized when the services are rendered. (iv) Commission income Commission income represents amounts earned from other carriers in respect of sales made by the Group on their behalf, and is recognized in profit or loss upon ticket sales. (v) Other revenue Revenues from other operating businesses, including income derived from the provision of freight forwarding, are recognized when the services are rendered. (vi) Frequent flyer program The Group operates a frequent flyer program that provide travel awards to program members based on accumulated miles. A portion of passenger revenue attributable to the award of frequent flyer benefits is deferred and recognized when the miles have been redeemed or have expired. (vii) Interest income Interest income is recognized on a time-proportion basis using the effective interest rate method. The amount of revenue is not considered to be reliably measurable until all contingencies relating to the sales have been resolved. The Group bases its estimates on historical results, taking into consideration the type of customer, the type of transaction and the specifics of each arrangement.
Government grants	Government grants Grants from the government are recognized at their fair value where there is a reasonable assurance that the grant will be received and the Group will comply with all attached conditions. When the grant relates to an expense item, it is recognized as income on a systematic basis over the periods that the costs, which it is intended to compensate are expensed. Where the grant relates to an asset, the fair value is credited to a deferred income account and is released to profit or loss over the expected useful life of the relevant asset by equal annual instalments.
Maintenance and overhaul costs	Maintenance and overhaul costs Overhaul costs that meet specific recognition criteria are capitalized as a component of property, plant and equipment or right-of-use assets and are depreciated over the appropriate maintenance cycles. Certain lease arrangements contain provisions that the Group has obligations to fulfill certain return conditions at the end of lease term. The Group estimated lease return costs for aircraft and engines and recognized such costs as part of the right-of-use asset and are depreciated during the lease term (applicable from January 1, 2019). Provision for the estimated leas return costs for aircraft and engines is made on a straight-line basis over the lease term (applicable before January 1, 2019). All other repairs and maintenance costs are charged to profit or loss as and when incurred.
Borrowing costs	Borrowing costs Borrowing costs directly attributable to the acquisition, construction or production of qualifying assets, i.e., assets that necessarily take a substantial period of time to get ready for their intended use or sale, are capitalized as part of the cost of those assets. The capitalization of such borrowing costs ceases when the assets are substantially ready for their intended use or sale. Investment income earned on the temporary investment of specific borrowings pending their expenditure on qualifying assets is deducted from the borrowing costs capitalized. All other borrowing costs are expensed in the period in which they are incurred. Borrowing costs consist of interest and other costs that an entity incurs in connection with the borrowing of funds.
Income tax	Income tax Income tax comprises current and deferred tax. Income tax relating to items recognized outside profit or loss is recognized outside profit or loss, either in other comprehensive income or directly in equity. Current tax assets and liabilities are measured at the amount expected to be recovered from or paid to the taxation authorities, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period, taking into consideration interpretations and practices prevailing in the countries in which the Group operates. Deferred tax is provided, using the liability method, on all temporary differences at the end of the reporting period between the tax bases of assets and liabilities and their carrying amounts for financial reporting purposes. Deferred tax liabilities are recognized for all taxable temporary differences, except: • when the deferred tax liability arises from the initial recognition of goodwill or an asset or liability in a transaction that is not a business combination and, at the time of the transaction, affects neither the accounting profit nor taxable profit or loss; and • in respect of taxable temporary differences associated with investments in subsidiaries, associates and joint ventures, when the timing of the reversal of the temporary differences can be controlled and it is probable that the temporary differences will not reverse in the foreseeable future. Deferred tax assets are recognized for all deductible temporary differences, and the carryforward of unused tax credits and any unused tax losses. Deferred tax assets are recognized to the extent that it is probable that taxable profit will be available against which the deductible temporary differences, the carryforward of unused tax credits and unused tax losses can be utilized, except: • when the deferred tax asset relating to the deductible temporary differences arises from the initial recognition of an asset or liability in a transaction that is not a business combination and, at the time of the transaction, affects neither the accounting profit nor taxable profit or loss; and • in respect of deductible temporary differences associated with investments in subsidiaries, associates and joint ventures, deferred tax assets are only recognized to the extent that it is probable that the temporary differences will reverse in the foreseeable future and taxable profit will be available against which the temporary differences can be utilized. The carrying amount of deferred tax assets is reviewed at the end of each reporting period and reduced to the extent that it is no longer probable that sufficient taxable profit will be available to allow all or part of the deferred tax asset to be utilized. Unrecognized deferred tax assets are reassessed at the end of each reporting period and are recognized to the extent that it has become probable that sufficient taxable profit will be available to allow all or part of the deferred tax asset to be recovered. Deferred tax assets and liabilities are measured at the tax rates that are expected to apply to the period when the asset is realized or the liability is settled, based on tax rates (and tax laws) that have been enacted or substantively enacted by the end of the reporting period. Deferred tax assets and deferred tax liabilities are offset if and only if the Group has a legally enforceable right to set off current tax assets and current tax liabilities and the deferred tax assets and deferred tax liabilities relate to income taxes levied by the same taxation authority on either the same taxable entity or different taxable entities which intend either to settle current tax liabilities and assets on a net basis, or to realize the assets and settle the liabilities simultaneously, in each future period in which significant amounts of deferred tax liabilities or assets are expected to be settled or recovered.
Business combinations and goodwill	Business combinations and goodwill Business combinations not under common control are accounted for using the acquisition method. The consideration transferred is measured at the acquisition date fair value which is the sum of the acquisition date fair values of assets transferred by the Group, liabilities assumed by the Group to the former owners of the acquiree and the equity interests issued by the Group in exchange for control of the acquiree. For each business combination, the Group elects whether to measure the non-controlling interests in the acquiree that are present ownership interests and entitle their holders to a proportionate share of net assets in the event of liquidation at fair value or at the proportionate share of the acquiree’s identifiable net assets. All other components of non-controlling interests are measured at fair value. Acquisition-related costs are expensed as incurred. When the Group acquires a business, it assesses the financial assets and liabilities assumed for appropriate classification and designation in accordance with the contractual terms, economic circumstances and pertinent conditions as at the acquisition date. This includes the separation of embedded derivatives in host contracts of the acquiree. If the business combination is achieved in stages, the previously held equity interest is remeasured at its acquisition date fair value and any resulting gain or loss is recognized in profit or loss. Any contingent consideration to be transferred by the acquirer is recognized at fair value at the acquisition date. Contingent consideration classified as an asset or liability is measured at fair value with changes in fair value recognized in profit or loss. Contingent consideration that is classified as equity is not remeasured and subsequent settlement is accounted for within equity. Goodwill is initially measured at cost, being the excess of the aggregate of the consideration transferred, the amount recognized for non-controlling interests and any fair value of the Group’s previously held equity interests in the acquiree over the identifiable net assets acquired and liabilities assumed. If the sum of this consideration and other items is lower than the fair value of the net assets acquired, the difference is, after reassessment, recognized in profit or loss as a gain on bargain purchase. After initial recognition, goodwill is measured at cost less any accumulated impairment losses. Goodwill is tested for impairment annually or more frequently if events or changes in circumstances indicate that the carrying value may be impaired. The Group performs its annual impairment test of goodwill as at December 31. For the purpose of impairment testing, goodwill acquired in a business combination is, from the acquisition date, allocated to each of the Group’s cash-generating units, or groups of cash-generating units, that are expected to benefit from the synergies of the combination, irrespective of whether other assets or liabilities of the Group are assigned to those units or groups of units. Impairment is determined by assessing the recoverable amount of the cash-generating unit (group of cash-generating units) to which the goodwill relates. Where the recoverable amount of the cash-generating unit (group of cash-generating units) is less than the carrying amount, an impairment loss is recognized. An impairment loss recognized for goodwill is not reversed in a subsequent period. Where goodwill has been allocated to a cash-generating unit (or group of cash-generating units) and part of the operation within that unit is disposed of, the goodwill associated with the operation disposed of is included in the carrying amount of the operation when determining the gain or loss on the disposal. Goodwill disposed of in these circumstances is measured based on the relative value of the operation disposed of and the portion of the cash-generating unit retained.
Intangible assets	Intangible assets (other than goodwill) (i) Computer software costs Acquired computer software licenses are capitalized on the basis of the costs incurred to acquire and bring to use the specific software. These costs are amortized using the straight-line method over their estimated useful lives of 5 years. Costs associated with developing or maintaining computer software programs are recognized as expenses when incurred. (ii) Others Others relate to the capitalized costs incurred to acquire the use right of certain flight schedules (i.e. timeslots for flights’ taking off/landing) in Guangzhou Baiyun International Airport Co., Ltd. and Shanghai Pudong International Airport, respectively. These costs are amortized using the straight-line method over their useful lives of 3 years.
Deferred pilot recruitment costs	Deferred pilot recruitment costs Deferred pilot recruitment costs represent the costs borne by the Group in connection with securing a certain minimum period of employment of pilots and are amortized on a straight-line basis over the anticipated beneficial period of 5 years, starting from the date the pilot joins the Group.
Related parties	Related parties A party is considered to be related to the Group if: (a) the party is a person or a close member of that person’s family and that person: (i) has control or joint control over the Group; (ii) has significant influence over the Group; or (iii) is a member of the key management personnel of the Group or of a parent of the Group; or (b) the party is an entity where any of the following conditions applies: (i) the entity and the Group are members of the same group; (ii) one entity is an associate or joint venture of the other entity (or of a parent, subsidiary or fellow subsidiary of the other entity); (iii) the entity and the Group are joint ventures of the same third party; (iv) one entity is a joint venture of a third entity and the other entity is an associate of the third entity; (v) the entity is a post-employment benefit plan for the benefit of employees of either the Group or an entity related to the Group and the sponsoring employers of the post-employment benefit plan; (vi) the entity is controlled or jointly controlled by a person identified in (a); (vii) a person identified in (a)(i) has significant influence over the entity or is a member of the key management personnel of the entity (or of a parent of the entity); and (viii) the entity, or any member of a group of which it is a part, provides key management personnel services to the Group or to the parent of the Group.
Property, plant and equipment	Property, plant and equipment Property, plant and equipment, other than construction in progress, are stated at cost less accumulated depreciation and any impairment losses. When an item of property, plant and equipment is classified as held for sale or when it is part of a disposal group classified as held for sale, it is not depreciated and is accounted for in accordance with IFRS 5, as further explained in the accounting policy for “Non-current When each major aircraft overhaul is performed, its cost is recognized in the carrying amount of the item of property, plant and equipment and is depreciated over the appropriate maintenance cycles. Components related to airframe overhaul cost, are depreciated on a straight-line basis over 5 to 7.5 years. Components related to engine overhaul costs, are depreciated between each overhaul period using the ratio of actual flying hours and estimated flying hours between overhauls. Upon completion of an overhaul, any remaining carrying amount of the cost of the previous overhaul is derecognized and charged to profit or loss. Except for components related to overhaul costs, the depreciation method of which has been described in the preceding paragraph, other depreciation of property, plant and equipment is calculated using the straight-line method to write off their costs to their residual values over their estimated useful lives, as follows: Owned aircraft and engines 15 to 20 years Other flight equipment, including rotables 10 years Buildings 8 to 45 years Other property, plant and equipment 3 to 20 years Where parts of an item of property, plant and equipment have different useful lives, the cost of that item is allocated on a reasonable basis among the parts and each part is depreciated separately. Residual values, useful lives and the depreciation method are reviewed, and adjusted if appropriate, at least at each financial year end. An item of property, plant and equipment including any significant part initially recognized is derecognized upon disposal or when no future economic benefits are expected from its use or disposal. Any gain or loss on disposal or retirement recognized in the statement of profit or loss in the year the asset is derecognized is the difference between the net sales proceeds and the carrying amount of the relevant asset. Construction in progress represents a building under construction, which is stated at cost less any impairment losses, and is not depreciated. Cost comprises the direct costs of construction and capitalized borrowing costs on related borrowed funds during the period of construction. Construction in progress is reclassified to the appropriate category of property, plant and equipment when completed and ready for use.
Investment properties	Investment properties Investment properties are interests in land and buildings held to earn rental income and/or for capital appreciation, rather than for use in the production or supply of goods or services or for administrative purposes; or for sale in the ordinary course of business. Such properties are measured initially at cost, including transaction costs. After initial recognition, the Group chooses the cost model to measure all of its investment properties. Depreciation is calculated on the straight-line basis to write off the cost to its residual value over its estimated useful life. The estimated useful lives are as follows: Buildings 30 to 35 years The carrying amounts of investment properties measured using the cost method are reviewed for impairment when events or changes in circumstances indicate that the carrying amounts may not be recoverable. Any gains or losses on the retirement or disposal of an investment property are recognized in profit or loss in the year of the retirement or disposal.
Impairment of non-financial assets	Impairment of non-financial Where an indication of impairment exists, or when annual impairment testing for an asset is required (other than inventories, contract assets, deferred tax assets, financial assets, investment properties and non-current An impairment loss is recognized only if the carrying amount of an asset exceeds its recoverable amount. In assessing value in use, the estimated future cash flows are discounted to their present value using a pre-tax An assessment is made at the end of each reporting period as to whether there is an indication that previously recognized impairment losses may no longer exist or may have decreased. If such an indication exists, the recoverable amount is estimated. A previously recognized impairment loss of an asset other than goodwill is reversed only if there has been a change in the estimates used to determine the recoverable amount of that asset, but not to an amount higher than the carrying amount that would have been determined (net of any depreciation/amortization) had no impairment loss been recognized for the asset in prior years. A reversal of such an impairment loss is credited to profit or loss in the period in which it arises, unless the asset is carried at a revalued amount, in which case the reversal of the impairment loss is accounted for in accordance with the relevant accounting policy for that revalued asset.
Non-current assets and disposal groups held for sale	Non-current Non-current non-controlling Non-current
Prepayments for land use rights	Prepayments for land use rights (applicable before January 1, 2019) Prepayments for land use rights under operating leases are initially stated at cost and subsequently recognized on the straight-line basis over the lease terms.
Advanced payments on acquisition of aircraft	Advanced payments on acquisition of aircraft Advanced payments on acquisition of aircraft represent payments to aircraft manufacturers to secure deliveries of aircraft in future years, including attributable borrowing costs, and are included in non-current
Flight equipment spare parts	Flight equipment spare parts Flight equipment spare parts are stated at the lower of cost and net realizable value. Cost is determined using the weighted average method. The cost of flight equipment spare parts comprises the purchase price (net of discounts), freight charges, duty and other miscellaneous charges. Net realizable value is the estimated selling price of the flight equipment spare parts in the ordinary course of business, less applicable selling expenses.
Investments and other financial assets	Investments and other financial assets (policies under IFRS 9 applicable from January 1, 2018) Initial recognition and measurement Financial assets are classified, at initial recognition, as subsequently measured at amortized cost, fair value through other comprehensive income, and fair value through profit or loss. The classification of financial assets at initial recognition depends on the financial asset’s contractual cash flow characteristics and the Group’s business model for managing them. With the exception of trade receivables that do not contain a significant financing component or for which the Group has applied the practical expedient of not adjusting the effect of a significant financing component, the Group initially measures a financial asset at its fair value, plus in the case of a financial asset not at fair value through profit or loss, transaction costs. Trade receivables that do not contain a significant financing component or for which the Group has applied the practical expedient are measured at the transaction price determined under IFRS 15 in accordance with the policies set out for “Revenue recognition” (applicable from January 1, 2018). In order for a financial asset to be classified and measured at amortized cost or fair value through other comprehensive income, it needs to give rise to cash flows that are solely payments of principal and interest (“SPPI”) on the principal amount outstanding. Financial assets with cash flows that are not SPPI are classified and measured at fair value through profit or loss, irrespective of the business model. The Group’s business model for managing financial assets refers to how it manages its financial assets in order to generate cash flows. The business model determines whether cash flows will result from collecting contractual cash flows, selling the financial assets, or both. Financial assets classified and measured at amortized cost are held within a business model with the objective to hold financial assets in order to collect contractual cash flows, while financial assets classified and measured at fair value through other comprehensive income are held within a business model with the objective of both holding to collect contractual cash flows and selling. Financial assets which are not held within the aforementioned business models are classified and measured at fair value through profit or loss. All regular way purchases and sales of financial assets are recognized on the trade date, that is, the date that the Group commits to purchase or sell the asset. Regular way purchases or sales are purchases or sales of financial assets that require delivery of assets within the period generally established by regulation or convention in the marketplace. Subsequent measurement The subsequent measurement of financial assets depends on their classification as follows: Financial assets at amortized cost (debt instruments) Financial assets at amortized cost are subsequently measured using the effective interest method and are subject to impairment. Gains and losses are recognized in the statement of profit or loss when the asset is derecognized, modified or impaired. Financial assets at fair value through other comprehensive income (debt instruments) For debt investments at fair value through other comprehensive income, interest income, foreign exchange revaluation and impairment losses or reversals are recognized in the statement of profit or loss and computed in the same manner as for financial assets measured at amortized cost. The remaining fair value changes are recognized in other comprehensive income. Upon derecognition, the cumulative fair value change recognized in other comprehensive income is recycled to the statement of profit or loss. Financial assets designated at fair value through other comprehensive income (equity investments) Upon initial recognition, the Group can elect to classify irrevocably its equity investments as equity investments designated at fair value through other comprehensive income when they meet the definition of equity under IAS 32 Financial Instruments: Presentation and are not held for trading. The classification is determined on an instrument-by-instrument Gains and losses on these financial assets are never recycled to the statement of profit or loss. Dividends are recognized as other income in the statement of profit or loss when the right of payment has been established, it is probable that the economic benefits associated with the dividend will flow to the Group and the amount of the dividend can be measured reliably, except when the Group benefits from such proceeds as a recovery of part of the cost of the financial asset, in which case, such gains are recorded in other comprehensive income. Equity investments designated at fair value through other comprehensive income are not subject to impairment assessment. Financial assets at fair value through profit or loss Financial assets at fair value through profit or loss are carried in the statement of financial position at fair value with net changes in fair value recognized in the statement of profit or loss. This category includes derivative instruments and equity investments which the Group had not irrevocably elected to classify at fair value through other comprehensive income. Dividends on equity investments classified as financial assets at fair value through profit or loss are also recognized as other income in the statement of profit or loss when the right of payment has been established, it is probable that the economic benefits associated with the dividend will flow to the Group and the amount of the dividend can be measured reliably. A derivative embedded in a hybrid contract, with a financial liability or non-financial A derivative embedded within a hybrid contract containing a financial asset host is not accounted for separately. The financial asset host together with the embedded derivative is required to be classified in its entirety as a financial asset at fair value through profit or loss. Investments and other financial assets (policies under IAS 39 applicable before January 1, 2018) Initial recognition and measurement Financial assets are classified, at initial recognition, as financial assets at fair value through profit or loss, loans and receivables and available-for-sale financial investments, or as derivatives designated as hedging instruments in an effective hedge, as appropriate. When financial assets are recognized initially, they are measured at fair value plus transaction costs that are attributable to the acquisition of the financial assets, except in the case of financial assets recorded at fair value through profit or loss. All regular way purchases and sales of financial assets are recognized on the trade date, that is, the date that the Group commits to purchase or sell the asset. Regular way purchases or sales are purchases or sales of financial assets that require delivery of assets within the period generally established by regulation or convention in the marketplace. Subsequent measurement The subsequent measurement of financial assets depends on their classification as follows: Financial assets at fair value through profit or loss Financial assets at fair value through profit or loss include financial assets held for trading and financial assets designated upon initial recognition as at fair value through profit or loss. Financial assets are classified as held for trading if they are acquired for the purpose of sale in the near term. Derivatives, including separated embedded derivatives, are also classified as held for trading unless they are designated as effective hedging instruments as defined by IAS 39. Financial assets at fair value through profit or loss are carried in the statement of financial position at fair value with positive net changes in fair value presented as other income and gains and negative net changes in fair value presented as finance costs in the statement of profit or loss. These net fair value changes do not include any dividends or interest earned on these financial assets, which are recognized in accordance with the policies set out for “Revenue recognition (applicable before January 1, 2018)”. Financial assets designated upon initial recognition as at fair value through profit or loss are designated at the date of initial recognition and only if the criteria in IAS 39 are satisfied. Derivatives embedded in host contracts are accounted for as separate derivatives and recorded at fair value if their economic characteristics and risks are not closely related to those of the host contracts and the host contracts are not held for trading or designated as at fair value through profit or loss. These embedded derivatives are measured at fair value with changes in fair value recognized in the statement of profit or loss. Reassessment only occurs if there is either a change in the terms of the contract that significantly modifies the cash flows that would otherwise be required or a reclassification of a financial asset out of the fair value through profit or loss category. Loans and receivables Loans and receivables are non-derivative financial assets with fixed or determinable payments that are not quoted in an active market. After initial measurement, such assets are subsequently measured at amortized cost using the effective interest rate method less any allowance for impairment. Amortized cost is calculated by taking into account any discount or premium on acquisition and includes fees or costs that are an integral part of the effective interest rate. The effective interest rate amortization is included in other income and gains in the statement of profit or loss. The loss arising from impairment is recognized in the statement of profit or loss in finance costs for loans and in other expenses for receivables. Available-for-sale financial investments Available-for-sale financial investments are non-derivative financial assets in listed and unlisted equity investments and debt securities. Equity investments classified as available for sale are those which are neither classified as held for trading nor designated as at fair value through profit or loss. Debt securities in this category are those which are intended to be held for an indefinite period of time and which may be sold in response to needs for liquidity or in response to changes in market conditions. After initial recognition, available-for-sale financial investments are subsequently measured at fair value, with unrealized gains or losses recognized as other comprehensive income in the available-for-sale investment revaluation reserve until the investment is derecognized, at which time the cumulative gain or loss is recognized in the statement of profit or loss in other income, or until the investment is determined to be impaired, when the cumulative gain or loss is reclassified from the available-for-sale investment revaluation reserve to the statement of profit or loss in other gains or losses. Interest and dividends earned whilst holding the available-for-sale financial investments are reported as interest income and dividend income, respectively and are recognized in the statement of profit or loss as other income. When the fair value of unlisted equity investments cannot be reliably measured because (a) the variability in the range of reasonable fair value estimates is significant for that investment or (b) the probabilities of the various estimates within the range cannot be reasonably assessed and used in estimating fair value, such investments are stated at cost less any impairment losses.
Derecognition of financial assets	Derecognition of financial assets (policies under IFRS 9 applicable from January 1, 2018 and policies under IAS 39 applicable before January 1, 2018) A financial asset (or, where applicable, a part of a financial asset or part of a group of similar financial assets) is primarily derecognized (i.e., removed from the Group’s consolidated statement of financial position) when: • the rights to receive cash flows from the asset have expired; or • the Group has transferred its rights to receive cash flows from the asset or has assumed an obligation to pay the received cash flows in full without material delay to a third party under a “pass-through” arrangement; and either (a) the Group has transferred substantially all the risks and rewards of the asset, or (b) the Group has neither transferred nor retained substantially all the risks and rewards of the asset, but has transferred control of the asset. When the Group has transferred its rights to receive cash flows from an asset or has entered into a pass-through arrangement, it evaluates if, and to what extent, it has retained the risk and rewards of ownership of the asset. When it has neither transferred nor retained substantially all the risks and rewards of the asset nor transferred control of the asset, the Group continues to recognize the transferred asset to the extent of the Group’s continuing involvement. In that case, the Group also recognizes an associated liability. The transferred asset and the associated liability are measured on a basis that reflects the rights and obligations that the Group has retained. Continuing involvement that takes the form of a guarantee over the transferred asset is measured at the lower of the original carrying amount of the asset and the maximum amount of consideration that the Group could be required to repay.
Impairment of financial assets	Impairment of financial assets (policies under IFRS 9 applicable from January 1, 2018) The Group recognizes an allowance for expected credit losses (“ECLs”) for all debt instruments not held at fair value through profit or loss. ECLs are based on the difference between the contractual cash flows due in accordance with the contract and all the cash flows that the Group expects to receive, discounted at an approximation of the original effective interest rate. The expected cash flows will include cash flows from the sale of collateral held or other credit enhancements that are integral to the contractual terms. General approach ECLs are recognized in two stages. For credit exposures for which there has not been a significant increase in credit risk since initial recognition, ECLs are provided for credit losses that result from default events that are possible within the next 12 months (a 12-month At each reporting date, the Group assesses whether the credit risk on a financial instrument has increased significantly since initial recognition. When making the assessment, the Group compares the risk of a default occurring on the financial instrument as at the reporting date with the risk of a default occurring on the financial instrument as at the date of initial recognition and considers reasonable and supportable information that is available without undue cost or effort, including historical and forward-looking information. The Group considers a financial asset in default when contractual payments are past due. However, in certain cases, the Group may also consider a financial asset to be in default when internal or external information indicates that the Group is unlikely to receive the outstanding contractual amounts in full before taking into account any credit enhancements held by the Group. A financial asset is written off when there is no reasonable expectation of recovering the contractual cash flows. Debt investments at fair value through other comprehensive income and financial assets at amortized cost are subject to impairment under the general approach and they are classified within the following stages for measurement of ECLs except for trade receivables and contract assets which apply the simplified approach as detailed below. Stage 1 – Financial instruments for which credit risk has not increased significantly since initial recognition and for which the loss allowance is measured at an amount equal to 12-month Stage 2 – Financial instruments for which credit risk has increased significantly since initial recognition but that are not credit-impaired financial assets and for which the loss allowance is measured at an amount equal to lifetime ECLs Stage 3 – Financial assets that are credit-impaired at the reporting date (but that are not purchased or originated credit-impaired) and for which the loss allowance is measured at an amount equal to lifetime ECLs Simplified approach For trade receivables and contract assets that do not contain a significant financing component or when the Group applies the practical expedient of not adjusting the effect of a significant financing component, the Group applies the simplified approach in calculating ECLs. Under the simplified approach, the Group does not track changes in credit risk, but instead recognizes a loss allowance based on lifetime ECLs at each reporting date. The Group has established a provision matrix that is based on its historical credit loss experience, adjusted for forward-looking factors specific to the debtors and the economic environment. Impairment of financial assets (policies under IAS 39 applicable before January 1, 2018) The Group assesses at the end of each reporting period whether there is objective evidence that a financial asset or a group of financial assets is impaired. An impairment exists if one or more events that occurred after the initial recognition of the asset have an impact on the estimated future cash flows of the financial asset or the group of financial assets that can be reliably estimated. Evidence of impairment may include indications that a debtor or a group of debtors is experiencing significant financial difficulty, default or delinquency in interest or principal payments, the probability that they will enter bankruptcy or other financial reorganization and observable data indicating that there is a measurable decrease in the estimated future cash flows, such as changes in arrears or economic conditions that correlate with defaults. Financial assets carried at amortized cost For financial assets carried at amortized cost, the Group first assesses whether impairment exists individually for financial assets that are individually significant, or collectively for financial assets that are not individually significant. If the Group determines that no objective evidence of impairment exists for an individually assessed financial asset, whether significant or not, it includes the asset in a group of financial assets with similar credit risk characteristics and collectively assesses them for impairment. Assets that are individually assessed for impairment and for which an impairment loss is, or continues to be, recognized are not included in a collective assessment of impairment. The amount of any impairment loss identified is measured as the difference between the asset’s carrying amount and the present value of estimated future cash flows (excluding future credit losses that have not yet been incurred). The present value of the estimated future cash flows is discounted at the financial asset’s original effective interest rate (i.e., the effective interest rate computed at initial recognition). The carrying amount of the asset is reduced through the use of an allowance account and the loss is recognized in the statement of profit or loss. Interest income continues to be accrued on the reduced carrying amount using the rate of interest used to discount the future cash flows for the purpose of measuring the impairment loss. Loans and receivables together with any associated allowance are written off when there is no realistic prospect of future recovery and all collateral has been realized or has been transferred to the Group. If, in a subsequent period, the amount of the estimated impairment loss increases or decreases because of an event occurring after the impairment was recognized, the previously recognized impairment loss is increased or reduced by adjusting the allowance account. If a write-off is later recovered, the recovery is credited to other expenses in the statement of profit or loss. Available-for-sale financial investments For available-for-sale financial investments, the Group assesses at the end of each reporting period whether there is objective evidence that an investment or a group of investments is impaired. If an available-for-sale asset is impaired, an amount comprising the difference between its cost (net of any principal payment and amortization) and its current fair value, less any impairment loss previously recognized in the statement of profit or loss, is removed from other comprehensive income and recognized in the statement of profit or loss. In the case of equity investments classified as available for sale, objective evidence would include a significant or prolonged decline in the fair value of an investment below its cost. “Significant” is evaluated against the original cost of the investment and “prolonged” against the period in which the fair value has been below its original cost. Where there is evidence of impairment, the cumulative loss – measured as the difference between the acquisition cost and the current fair value, less any impairment loss on that investment previously recognized in the statement of profit or loss – is removed from other comprehensive income and recognized in the statement of profit or loss. Impairment losses on equity instruments classified as available for sale are not reversed through the statement of profit or loss. Increases in their fair value after impairment are recognized directly in other comprehensive income. The determination of what is “significant” or “prolonged” requires judgement. In making this judgement, the Group evaluates, among other factors, the duration or extent to which the fair value of an investment is less than its cost.
Financial liabilities	Financial liabilities (policies under IFRS 9 applicable from January 1, 2018 and IAS 39 applicable before January 1, 2018) Initial recognition and measurement Financial liabilities are classified, at initial recognition, as financial liabilities at fair value through profit or loss, loans and borrowings, payables, or as derivatives designated as hedging instruments in an effective hedge, as appropriate. All financial liabilities are recognized initially at fair value and, in the case of loans and borrowings and payables, net of directly attributable transaction costs. The Group’s financial liabilities include trade and other payables, derivative financial instruments, lease liabilities, interest-bearing bank and other borrowings. Subsequent measurement The subsequent measurement of financial liabilities depends on their classification as follows: Financial liabilities at amortized cost (loans and borrowings) After initial recognition, interest-bearing loans and borrowings are subsequently measured at amortized cost, using the effective interest rate method unless the effect of discounting would be immaterial, in which case they are stated at cost. Gains and losses are recognized in the statement of profit or loss when the liabilities are derecognized as well as through the effective interest rate amortization process. Amortized cost is calculated by taking into account any discount or premium on acquisition and fees or costs that are an integral part of the effective interest rate. The effective interest rate amortization is included in finance costs in the statement of profit or loss.
Derecognition of financial liabilities	Derecognition of financial liabilities (policies under IFRS 9 applicable from January 1, 2018 and IAS 39 applicable before January 1, 2018) A financial liability is derecognized when the obligation under the liability is discharged or cancelled, or expires. When an existing financial liability is replaced by another from the same lender on substantially different terms, or the terms of an existing liability are substantially modified, such an exchange or modification is treated as a derecognition of the original liability and a recognition of a new liability, and the difference between the respective carrying amounts is recognized in the statement of profit or loss.
Offsetting of financial instruments	Offsetting of financial instruments (policies under IFRS 9 applicable from January 1, 2018 and IAS 39 applicable before January 1, 2018) Financial assets and financial liabilities are offset and the net amount is reported in the statement of financial position if there is a currently enforceable legal right to offset the recognized amounts and there is an intention to settle on a net basis, or to realize the assets and settle the liabilities simultaneously.
Derivative financial instruments and hedge accounting	Derivative financial instruments and hedge accounting (policies under IFRS 9 applicable from January 1, 2018 and IAS 39 applicable before January 1, 2018) Initial recognition and subsequent measurement The Group uses derivative financial instruments, such as forward currency contracts and interest rate swaps, to hedge its foreign currency risk and interest rate risk, respectively. Such derivative financial instruments are initially recognized at fair value on the date on which a derivative contract is entered into and are subsequently remeasured at fair value. Derivatives are carried as assets when the fair value is positive and as liabilities when the fair value is negative. The fair value of commodity purchase contracts that meet the definition of a derivative as defined by IFRS 9 and IAS 39 is recognized in the statement of profit or loss as cost of sales. Commodity contracts that are entered into and continue to be held for the purpose of the receipt or delivery of a non-financial item in accordance with the Group’s expected purchase, sale or usage requirements are held at cost. Any gains or losses arising from changes in fair value of derivatives are taken directly to the statement of profit or loss, except for the effective portion of cash flow hedges, which is recognized in other comprehensive income and later reclassified to profit or loss when the hedged item affects profit or loss. For the purpose of hedge accounting, hedges are classified as: • fair value hedges when hedging the exposure to changes in the fair value of a recognized asset or liability or an unrecognized firm commitment; or • cash flow hedges when hedging the exposure to variability in cash flows that is either attributable to a particular risk associated with a recognized asset or liability or a highly probable forecast transaction, or a foreign currency risk in an unrecognized firm commitment; or • hedges of a net investment in a foreign operation. At the inception of a hedge relationship, the Group formally designates and documents the hedge relationship to which the Group wishes to apply hedge accounting, the risk management objective and its strategy for undertaking the hedge. The documentation includes identification of the hedging instrument, the hedged item, the nature of the risk being hedged and how the Group will assess whether the hedging relationship meets the hedge effectiveness requirements (including the analysis of sources of hedge ineffectiveness and how the hedge ratio is determined). A hedging relationship qualifies for hedge accounting if it meets all of the following effectiveness requirements: • There is “an economic relationship” between the hedged item and the hedging instrument. • The effect of credit risk does not “dominate the value changes” that result from that economic relationship. • The hedge ratio of the hedging relationship is the same as that resulting from the quantity of the hedged item that the Group actually hedges and the quantity of the hedging instrument that the Group actually uses to hedge that quantity of hedged item. Hedges which meet all the qualifying criteria for hedge accounting are accounted for as follows: Cash flow hedges The effective portion of the gain or loss on the hedging instrument is recognized directly in other comprehensive income in the cash flow hedge reserve, while any ineffective portion is recognized immediately in the statement of profit or loss. The cash flow hedge reserve is adjusted to the lower of the cumulative gain or loss on the hedging instrument and the cumulative change in fair value of the hedged item. The amounts accumulated in other comprehensive income are accounted for, depending on the nature of the underlying hedged transaction. If the hedged transaction subsequently results in the recognition of a non-financial non-financial non-financial For any other cash flow hedges, the amount accumulated in other comprehensive income is reclassified to the statement of profit or loss as a reclassification adjustment in the same period or periods during which the hedged cash flows affect the statement of profit or loss. If cash flow hedge accounting is discontinued, the amount that has been accumulated in other comprehensive income must remain in accumulated other comprehensive income if the hedged future cash flows are still expected to occur. Otherwise, the amount will be immediately reclassified to the statement of profit or loss as a reclassification adjustment. After the discontinuation, once the hedged cash flow occurs, any amount remaining in accumulated other comprehensive income is accounted for depending on the nature of the underlying transaction as described above. Fair value hedges The change in the fair value of a hedging instrument is recognized in the statement of profit or loss as other expenses. The change in the fair value of the hedged item attributable to the risk hedged is recorded as a part of the carrying amount of the hedged item and is also recognized in the statement of profit or loss as other expenses. For fair value hedges relating to items carried at amortized cost, the adjustment to carrying value is amortized through the statement of profit or loss over the remaining term of the hedge using the effective interest rate method. Effective interest rate amortization may begin as soon as an adjustment exists and shall begin no later than when the hedged item ceases to be adjusted for changes in its fair value attributable to the risk being hedged. If the hedged item is derecognized, the unamortized fair value is recognized immediately in the statement of profit or loss. When an unrecognized firm commitment is designated as a hedged item, the subsequent cumulative change in the fair value of the firm commitment attributable to the hedged risk is recognized as an asset or liability with a corresponding gain or loss recognized in the statement of profit or loss. The changes in the fair value of the hedging instrument are also recognized in the statement of profit or loss. Current versus non-current Derivative instruments that are not designated as effective hedging instruments are classified as current or non-current non-current • Where the Group expects to hold a derivative as an economic hedge (and does not apply hedge accounting) for a period beyond 12 months after the end of the reporting period, the derivative is classified as non-current non-current • Embedded derivatives that are not closely related to the host contract are classified consistently with the cash flows of the host contract. • Derivative instruments that are designated as, and are effective hedging instruments, are classified consistently with the classification of the underlying hedged item. The derivative instruments are separated into current portions and non-current
Cash and cash equivalents	Cash and cash equivalents For the purpose of the consolidated statement of cash flows, cash and cash equivalents comprise cash on hand and demand deposits, and short term highly liquid investments that are readily convertible into known amounts of cash, are subject to an insignificant risk of changes in value, and have a short maturity of generally within three months when acquired, less bank overdrafts which are repayable on demand and form an integral part of the Group’s cash management. For the purpose of the statement of financial position, cash and cash equivalents comprise cash on hand and at banks, including assets similar in nature to cash, which are not restricted as to use.
Provisions	Provisions A provision is recognized when a present obligation (legal or constructive) has arisen as a result of a past event and it is probable that a future outflow of resources will be required to settle the obligation, provided that a reliable estimate can be made of the amount of the obligation. When the effect of discounting is material, the amount recognized for a provision is the present value at the end of the reporting period of the future expenditures expected to be required to settle the obligation. The increase in the discounted present value amount arising from the passage of time is included in finance costs in the statement of profit or loss. Where there are a number of similar obligations, the likelihood that an outflow will be required in settlement is determined by considering the class of obligations as a whole. A provision is recognized even if the likelihood of an outflow with respect to any one item included in the same class of obligations may be small. Provisions are measured at the present value of the expenditures expected to be required to settle the obligation using a pre-tax For the contract under which the unavoidable costs of meeting the obligations under the contract exceed the economic benefits expected to be received under it, the present obligation under the contract is recognized and measured as a provision.
Leases	Leases (applicable from January 1, 2019) The Group assesses at contract inception whether a contract is, or contains, a lease. A contract is, or contains, a lease if the contract conveys the right to control the use of an identified asset for a period of time in exchange for consideration. (i) As lessee The Group applies a single recognition and measurement approach for all leases, except for short-term leases and leases of low-value right-of-use (a) Right-of-use Right-of-use Right-of-use right-of-use right-of-use Right-of-use Aircraft and engines under leases 8 to 12 years Buildings 2 to 10 years Prepayments for land use rights 50 years Others 2 to 5 years If ownership of the leased asset transfers to the Group by the end of the lease term or the cost reflects the exercise of a purchase option, depreciation is calculated using the estimated useful life of the asset. (b) Lease liabilities Lease liabilities are recognized at the commencement date of the lease at the present value of lease payments to be made over the lease term. The lease payments include fixed payments (including in-substance In calculating the present value of lease payments, the Group uses its incremental borrowing rate at the lease commencement date because the interest rate implicit in the lease is not readily determinable. After the commencement date, the amount of lease liabilities is increased to reflect the accretion of interest and reduced for the lease payments made. In addition, the carrying amount of lease liabilities is remeasured if there is a modification, a change in the lease term, a change in lease payments (e.g., a change to future lease payments resulting from a change in an index or rate) or a change in assessment of an option to purchase the underlying asset. (c) Short-term leases and leases of low-value The Group applies the short-term lease recognition exemption to its short-term leases (that is those leases that have a lease term of 12 months or less from the commencement date and do not contain a purchase option). It also applies the recognition exemption for leases of low-value low-value (ii) As lessor When the Group acts as a lessor, it classifies at lease inception (or when there is a lease modification) each of its leases as either an operating lease or a finance lease. Leases in which the Group does not transfer substantially all the risks and rewards incidental to ownership of an asset are classified as operating leases. When a contract contains lease and non-lease Leases that transfer substantially all the risks and rewards incidental to ownership of an underlying asset to the lessee are accounted for as finance leases. Leases (applicable before January 1, 2019) (i) As lessee Finance leases Leases where the Group has acquired substantially all the risks and rewards of ownership are classified as finance leases. Finance leases are capitalized at the lease’s commencement at the lower of the fair value of the assets and the present value of the minimum lease payments. Each lease payment is allocated between the liability and finance charges. The corresponding rental obligations, net of finance charges, are included in the current portion of obligations under finance leases and obligations under finance leases, respectively. The interest element of the finance costs is charged to profit or loss over the lease period so as to produce a constant periodic rate of interest on the remaining balance of the liability for each period. Leased assets are depreciated using a straight-line basis over their expected useful lives to residual values. For sale and leaseback transactions resulting in a finance lease, the Group continues to recognize the transferred asset and recognize a financial liability equal to the transfer proceeds. Operating leases Leases in which a significant portion of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating leases (net of any incentives received from the lessor) are charged to profit or loss on a straight-line basis over the period of the lease. For sale and leaseback transactions resulting in an operating lease, differences between sales proceeds and net book values are recognized immediately in profit or loss, except to the extent that any profit or loss is compensated for by future lease payments at above or below the market value, then the profit or loss is deferred and amortized over the period for which the asset is expected to be used. (ii) As lessor Assets leased out under operating leases are included in property, plant and equipment in the statement of financial position. They are depreciated over their expected useful lives on a basis consistent with similar property, plant and equipment. Rental income is recognized on a straight-line basis over the lease term.
Retirement benefits	Retirement benefits (i) Defined contribution plans The Group participates in schemes regarding pension and medical benefits for employees organized by the municipal governments of the relevant provinces. Contributions to these schemes are expensed as incurred. The Group also implements an additional defined contribution pension benefit scheme (annuity) for voluntary eligible employees. Contributions are made based on a percentage of the employees’ total salaries and are charged to profit or loss as incurred. (ii) Defined benefit plan The Group provides eligible retirees with certain post-retirement benefits including retirement subsidies, transportation allowance as well as other welfare. The defined post-retirement benefits are unfunded. The cost of providing benefits under the post-retirement benefit plan is determined using the projected unit credit actuarial valuation method. Remeasurements arising from the post-retirement benefit plan, comprising actuarial gains and losses, the effect of the asset ceiling (excluding net interest) and the return on plan assets (excluding net interest), are recognized immediately in the consolidated statement of financial position with a corresponding debit or credit to equity through other comprehensive income in the period in which they occur. Remeasurements are not reclassified to profit or loss in subsequent periods. Past service costs are recognized in profit or loss at the earlier of: • the date of the plan amendment or curtailment; and • the date that the Group recognizes restructuring-related costs Net interest is calculated by applying the discount rate to the net defined benefit liability or asset. The Group recognizes the following changes in the net defined benefit obligation under “Wages, salaries and benefits” and “Finance costs” in profit or loss: • service costs comprising current service costs, past-service costs, gains and losses on curtailments and non-routine • net interest expense
Dividend distribution	Dividend distribution Dividend distribution to the Company’s shareholders is recognized as a liability in the consolidated financial statements in the period in which the dividends are approved by the Company’s shareholders. Proposed final dividends are disclosed in the notes to the consolidated financial statements.
Fair value measurement	Fair value measurement The Group measures its derivative financial instruments and equity investments at fair value at the end of each reporting period. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value measurement is based on the presumption that the transaction to sell the asset or transfer the liability takes place either in the principal market for the asset or liability, or in the absence of a principal market, in the most advantageous market for the asset or liability. The principal or the most advantageous market must be accessible by the Group. The fair value of an asset or a liability is measured using the assumptions that market participants would use when pricing the asset or liability, assuming that market participants act in their economic best interest. A fair value measurement of a non-financial The Group uses valuation techniques that are appropriate in the circumstances and for which sufficient data are available to measure fair value, maximizing the use of relevant observable inputs and minimizing the use of unobservable inputs. All assets and liabilities for which fair value is measured or disclosed in the financial statements are categorized within the fair value hierarchy, described as follows, based on the lowest level input that is significant to the fair value measurement as a whole: Level 1 – based on quoted prices (unadjusted) in active markets for identical assets or liabilities Level 2 – based on valuation techniques for which the lowest level input that is significant to the fair value measurement is observable, either directly or indirectly Level 3 – based on valuation techniques for which the lowest level input that is significant to the fair value measurement is unobservable For assets and liabilities that are recognized in the financial statements on a recurring basis, the Group determines whether transfers have occurred between levels in the hierarchy by reassessing categorization (based on the lowest level input that is significant to the fair value measurement as a whole) at the end of each reporting period.

Corporate and Group Informati_2

Corporate and Group Information (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Principal Subsidiaries	Particulars of the Company’s principal subsidiaries at the end of the reporting period are as follows: Name Place and date of Issued ordinary/ registered share Percentage of place of business capital Direct Indirect Principal activities million China Eastern Airlines Jiangsu Co., Ltd. (“CEA Jiangsu”) PRC/Mainland China April 7, 1993 RMB2,000 62.56 % — Provision of airline services China Eastern Airlines Wuhan Co., Ltd. (“CEA Wuhan”) PRC/Mainland China August 16, 2002 RMB1,750 60 % — Provision of airline services Shanghai Eastern Flight Training Co., Ltd. (“Shanghai Flight Training”) PRC/Mainland China December 18, 1995 RMB694 100 % — Provision of flight training services Shanghai Airlines Co., Ltd. (“Shanghai Airlines”) PRC/Mainland China March 16, 2010 RMB500 100 % — Provision of airline services China Eastern Airlines Technology Co., Ltd. (“Eastern Technology”) PRC/Mainland China November 19, 2014 RMB4,300 100 % — Provision of airline maintenance services One two three Airlines Co., Ltd. (“OTT Airlines”) (Originally named Eastern Business Airlines Co., Ltd.) PRC/Mainland China September 27, 2008 RMB1,500 100 % — Provision of business aviation services China Eastern Airlines Yunnan Co., Ltd. (“CEA Yunnan”) PRC/Mainland China August 2, 2011 RMB3,662 90.36 % — Provision of airline services Eastern Air Overseas (Hong Kong) Co., Ltd. (“Eastern Air Overseas”) Hong Kong June 10, 2011 HKD280 100 % — Provision of import and export, investment, leasing and consultation services China United Airlines Co., Ltd. (“China United Airlines”) PRC/Mainland China September 21, 1984 RMB1,320 100 % — Provision of airline services Eastern Airlines Hotel Co., Ltd. PRC/Mainland China March 18, 1998 RMB70 100 % — Provision of hotel services primarily to crew China Eastern Airlines Application Development Center Co., Ltd. (“Application Development Center”) PRC/Mainland China November 21, 2011 RMB498 100 % — Provision of research and development of technology and products in the field of aviation China Eastern Airlines E-Commerce Co., Ltd. (“Eastern E-Commerce”) PRC/Mainland China December 1, 2014 RMB50 100 % — E-commerce platform and ticket agent

Changes in Accounting Policie_2

Changes in Accounting Policies and Disclosures (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of impacts arising from the adoption of IFRS 16	The impacts arising from the adoption of IFRS 16 at January 1, 2019 was as follows: Increase/(decrease) RMB million Assets Increase in right-of-use 128,312 Decrease in property, plant and equipment (94,416 ) Decrease in prepayments for land use rights (1,387 ) Decrease in prepayments and other receivables (403 ) Increase in deferred tax assets 470 Increase in total assets 32,576 Liabilities Increase in lease liabilities 109,306 Increase in provision for lease return costs for aircraft and engines 3,654 Decrease in obligations under finance leases (77,427 ) Decrease in other long-term liabilities (1,115 ) Decrease in deferred tax liabilities (84 ) Increase in total liabilities 34,334 Decrease in retained profits (1,595 ) Decrease in non-controlling (163 )
Summary of reconcilation between lease liabilities and operating lease commitments	The lease liabilities as at January 1, 2019 reconciled to the operating lease commitments as at December 31, 2018 are as follows: RMB million Operating lease commitments as at December 31, 2018 37,278 Less: Commitments relating to short-term leases and those leases with a remaining lease term ended on or before December 31, 2019 (206 ) Commitments relating to leases of low-value (1 ) 37,071 Weighted average incremental borrowing rate as at January 1, 2019 4.09 % Discounted operating lease commitments as at January 1, 2019 31,879 Add: Obligations under finance leases recognized as at December 31, 2018 77,427 Lease liabilities as at January 1, 2019 109,306

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Property, Plant and Equipment Estimated Useful Lives	Except for components related to overhaul costs, the depreciation method of which has been described in the preceding paragraph, other depreciation of property, plant and equipment is calculated using the straight-line method to write off their costs to their residual values over their estimated useful lives, as follows: Owned aircraft and engines 15 to 20 years Other flight equipment, including rotables 10 years Buildings 8 to 45 years Other property, plant and equipment 3 to 20 years
Summary of Investment Property Estimated Useful Lives	Depreciation is calculated on the straight-line basis to write off the cost to its residual value over its estimated useful life. The estimated useful lives are as follows: Buildings 30 to 35 years
Summay of estimated useful lives of the assets under right of use assets	Right-of-use Aircraft and engines under leases 8 to 12 years Buildings 2 to 10 years Prepayments for land use rights 50 years Others 2 to 5 years

Operating Segment Information (

Operating Segment Information (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Segment Results	The segment results for the year ended December 31, 2019 were as follows: Airline transportation operations RMB million Other segments RMB Eliminations Unallocated* Total Segment revenue Reportable segment revenue from external customers 119,240 1,620 — — 120,860 Inter-segment sales — 2,052 (2,052 ) — — Reportable segment revenue 119,240 3,672 (2,052 ) — 120,860 Reportable segment profit before income tax 2,745 1,164 — 393 4,302 Other segment information Depreciation and amortization 21,816 261 — — 22,077 Impairment charges / Impairment losses on financial assets, net 20 — — — 20 Interest income 108 1 (13 ) — 96 Interest expense 5,152 30 (13 ) — 5,169 Capital expenditure 42,853 303 — — 43,156 The segment results for the year ended December 31, 2018 were as follows: Airline RMB million Other RMB million Eliminations RMB million Unallocated* RMB million Total RMB million Segment revenue Reportable segment revenue from external customers 112,228 2,702 — — 114,930 Inter-segment sales — 1,425 (1,425 ) — — Reportable segment revenue 112,228 4,127 (1,425 ) — 114,930 Reportable segment profit before income tax 2,723 622 — 522 3,867 Other segment information Depreciation and amortization 15,051 251 — — 15,302 Impairment charges/ Impairment losses on financial assets, net 338 7 — — 345 Interest income 118 1 (9 ) — 110 Interest expense 3,721 15 (9 ) — 3,727 Capital expenditure* 30,670 508 — — 31,178 * Capital expenditure consists of additions to property, plant and equipment, right-of-use assets, construction in process, investment properties, intangible assets and long-term deferred assets. The segment assets and liabilities as at December 31, 2019 and December 31, 2018 were as follows: Airline RMB million Other RMB million Eliminations RMB million Unallocated* RMB million Total RMB million At December 31, 2019 Reportable segment assets 274,578 6,225 (1,943 ) 4,076 282,936 Reportable segment liabilities 211,035 3,146 (1,943 ) 301 212,539 At December 31, 2018 Reportable segment assets 230,533 4,635 (2,248 ) 3,845 236,765 Reportable segment liabilities 176,836 2,712 (2,248 ) 113 177,413 * Unallocated assets primarily represent investments in associates and joint ventures, derivative financial instruments, equity investments designated at fair value through other comprehensive income and a financial asset at fair value through profit or loss. Unallocated results primarily represent the share of results of associates and joint ventures, fair value changes of derivative financial instruments, fair value changes of a financial asset at fair value through profit or loss and dividend income relating to equity investments.
Summary of Revenues by Geographical Area	2019 2018 2017 RMB million RMB million RMB million Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) 80,058 76,517 67,923 International 37,082 34,744 3,624 Regional (Hong Kong, Macau and Taiwan) 3,846 4,017 30,928 Total 120,986 115,278 102,475
Summary of Reconciliation of Reportable Segment Revenues, Profit, Assets and Liabilities	2019 2018 2017 Note RMB million RMB million RMB million Revenue Reportable segment revenue 120,860 114,930 101,721 - Reclassification of expired sales in advance of carriage (i) — — 357 - Reclassification of taxes relating to the expired tickets (i) 126 348 397 Consolidated revenue 120,986 115,278 102,475 2019 2018 2017 Note RMB million RMB million RMB million Profit before income tax Reportable segment profit before income tax 4,302 3,867 8,620 - Differences in depreciation charges for aircraft and engines due to different depreciation lives (ii) (3 ) (11 ) (10 ) Consolidated profit before income tax 4,299 3,856 8,610 2019 2018 Notes RMB million RMB million Assets Reportable segment assets 282,936 236,765 - Differences in depreciation charges for aircraft and engines due to different depreciation lives (ii) 7 10 - Difference in intangible asset arising from the acquisition of Shanghai Airlines (iii) 2,242 2,242 Consolidated assets 285,185 239,017 2019 2018 RMB million RMB million Liabilities Reportable segment liabilities 212,539 177,413 - Others — 3 Consolidated liabilities 212,539 177,416 Notes: (i) The difference represents the different classification of sales related taxes under the PRC Accounting Standards and IFRSs. (ii) The difference is attributable to the differences in the useful lives and residual values of aircraft and engines adopted for depreciation purposes in prior years under the PRC Accounting Standards and IFRSs. Despite the depreciation policies of these assets which have been unified under IFRSs and the PRC Accounting Standards in recent years, the changes were applied prospectively as changes in accounting estimates which result in the differences in the carrying amounts and related depreciation charges under IFRSs and the PRC Accounting Standards. (iii) The difference represents the different measurement of the fair value of acquisition cost of the shares from Shanghai Airlines between the PRC Accounting standards and IFRSs, which results in the different measurement of goodwill.

Revenues (Tables)

Revenues (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Revenues	An analysis of revenue is as follows: 2019 2018 2017 RMB million RMB million RMB million Revenue from contracts with customers 120,796 115,210 102,436 Revenue from other sources Rental income 190 68 39 120,986 115,278 102,475 Revenue from contracts with customers (i) Disaggregated revenue information For the year ended December 31, 2019 Airline transportation Other Segments operations operations Total RMB million RMB million RMB million Type of goods or services Traffic revenues - Passenger 110,416 — 110,416 - Cargo and mail 3,826 — 3,826 Tour operations income — 878 878 Ground service income 1,180 — 1,180 Commission income 2,485 — 2,485 Others 1,269 742 2,011 Total revenue from contracts with customers 119,176 1,620 120,796 Geographical markets Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) 78,248 1,620 79,868 International 37,082 — 37,082 Regional (Hong Kong, Macau and Taiwan) 3,846 — 3,846 Total revenue from contracts with customers 119,176 1,620 120,796 For the year ended December 31, 2018 Airline transportation Other Segments operations operations Total RMB million RMB million RMB million Type of goods or services Traffic revenues - Passenger 104,309 — 104,309 - Cargo and mail 3,627 — 3,627 Tour operations income — 2,173 2,173 Ground service income 1,055 — 1,055 Commission income 2,199 — 2,199 Others 1,368 529 1,897 Total revenue from contracts with customers 112,508 2,702 115,210 Geographical markets Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) 73,747 2,702 76,449 International 34,744 — 34,744 Regional (Hong Kong, Macau and Taiwan) 4,017 — 4,017 Total revenue from contracts with customers 112,508 2,702 115,210 Set out below is the reconciliation of the revenue from contracts with customers to the amounts disclosed in the segment information: For the year ended December 31, 2019 Segments Airline RMB million Other RMB million Total RMB million Revenue from contracts with customers External customers 119,176 1,620 120,796 Intersegment sales — 2,052 2,052 Intersegment adjustment and eliminations — (2,052 ) (2,052 ) Total revenue from contracts with customers 119,176 1,620 120,796 For the year ended December 31, 2018 Segments Airline RMB million Other RMB million Total RMB million Revenue from contracts with customers External customers 112,508 2,702 115,210 Intersegment sales — 1,425 1,425 Intersegment adjustment and eliminations — (1,425 ) (1,425 ) Total revenue from contracts with customers 112,508 2,702 115,210
Schedule of Revenue Recognized in Current Reporting Period that were Included in Contract Liabilities	The following table shows the amounts of revenue recognized in the current reporting period that were included in the contract liabilities at the beginning of the reporting period: 2019 RMB million 2018 RMB million Revenue recognized that was included in contract liabilities at the beginning of the year: Passenger transportation services 7,216 6,218
Summary of Contract Liabilities Activity	The table below presents the movements of the contract liabilities for frequent flyer program. 2019 RMB million 2018 RMB million At January 1 2,286 1,994 Deferred during the year 1,613 1,519 Recognized as revenue during the year (1,654 ) (1,227 ) At December 31 2,245 2,286 Less: the related pending output value added tax therein 188 240 2,057 2,046

Other Operating Income and Ga_2

Other Operating Income and Gains (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Other Operating Income and Gains	2019 RMB million 2018 2017 Co-operation 5,436 4,536 3,884 Routes subsidy income (note (b)) 353 441 295 Other subsidy income (note (c)) 535 453 762 Gain on disposal of items of property, plant and equipment 40 290 69 Gain on disposal of prepayments for land use rights — 210 5 Gain on disposal of available-for-sale — — 4 Dividend income from available-for-sale — — 33 Gain on disposal of an associate — 5 12 Dividend income from a financial asset at fair value through profit or loss 3 6 — Dividend income from equity investments designated at fair value through other comprehensive income 19 23 — Compensation from ticket sales agents 331 348 271 Gain on disposal of a subsidiary (note (d)) 64 — 1,754 Others 421 280 392 7,202 6,592 7,481 Notes: (a) Co-operation (b) Routes subsidy income represents subsidies granted by various authorities to support certain international and domestic routes operated by the Group. (c) Other subsidy income represents subsidies granted by various local authorities based on certain amounts of tax paid and other government grants. (d) There are no unfulfilled conditions or other contingencies related to subsidies that were recognized for the years ended December 31, 2019, 2018 and 2017.

Operating Profit (Tables)

Operating Profit (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Operating Profit	Operating profit is stated after charging the following items: 2019 RMB million 2018 2017 Amortization of intangible assets (Note 20) 143 160 142 Depreciation of property, plant and equipment (Note 17) – owned 9,078 7,926 7,065 – leased (finance leases) — 6,690 6,302 Depreciation of right-of-use assets (Note 19(b)) (2018 and 2017: amortization of prepayments for land use rights) 12,298 43 45 Depreciation of investment properties (Note 18) 25 26 12 Amortization of long-term deferred assets included in other non-current assets 536 468 402 Consumption of flight equipment spare parts 1,013 1,088 1,131 Auditors’ remuneration 18 17 19 Foreign exchange differences, net (Note 13 and 12) 990 2,040 (2,001 )

Wages, Salaries and Benefits (T

Wages, Salaries and Benefits (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Wages, Salaries and Benefits	2019 RMB million 2018 2017 Wages, salaries, bonuses and allowances 19,385 17,865 16,474 Employee welfare and benefits 143 170 133 Pension (Note 40(a)) 2,571 2,306 1,987 Medical insurance (note (a)) 789 706 663 Staff housing fund (note (b)) 1,056 948 886 Staff housing allowances (note (c)) 186 109 150 Early retirement benefits (note (d)) 22 30 27 24,152 22,134 20,320 Notes: (a) Medical insurance Majority of the Group’s PRC employees participate in the medical insurance schemes organized by municipal governments. (b) Staff housing fund In accordance with the relevant PRC housing regulations, the Group is required to contribute to the state-sponsored housing fund for its employees. At the same time, the employees are required to contribute an amount equal to the Group’s contribution. The employees are entitled to claim the entire sum of the fund contributed under certain specified withdrawal circumstances. The Group has no legal or constructive obligations to pay further contributions if the fund does not hold sufficient assets to pay all employees the benefits. (c) Staff housing allowances The Group also provides staff housing allowances in cash to eligible employees. The total entitlement of an eligible employee is principally provided over a period of 20 years. Upon an eligible employee’s resignation or retirement, his or her entitlement would cease and any unpaid entitlement related to past service up to the date of resignation or retirement would be paid. (d) Early retirement benefits The Group implements an early retirement scheme which allows eligible employees to early retire on a voluntary basis. The Group undertakes the obligations to pay the early retirement employees’ basic salaries and certain welfare in the future on a monthly basis according to the early retirement scheme, together with social insurance and housing fund pursuant to the regulation of the local government. The benefits of the early retirement scheme are calculated based on factors including the remaining number of years of service from the date of early retirement to the normal retirement date and the benefits the early retirement employees enjoyed. The present value of the future cash flows expected to be required to settle the obligations is recognized as a provision in “other long-term liabilities”. (e) Directors’ and executives’ remuneration 2019 Fees RMB’000 Salaries, RMB’000 Performance RMB’000 Pension RMB’000 Total RMB’000 Executive Directors Liu Shaoyong* — — — — — Ma Xulun*&**** — — — — — Wang Junjin** — — — — — Li Yangmin*&** — — — — — Tang Bing*&** — — — — — Yuan Jun* — — — — — Independent non-executive Directors Lin Wanli — — — — — Li Ruoshan*** 200 — — — 200 Ma Weihua*** 200 — — — 200 Shao Ruiqing 200 — — — 200 Cai Hongping 200 — — — 200 Dong Xuebo** 5 — — — 5 Supervisors Xi Sheng* — — — — — Gao Feng — 665 — 21 686 Li Jinde*&*** — — — — — Fang Zhaoya*&** — — — — — Total 805 665 — 21 1,491 2018 Fees RMB’000 Salaries, RMB’000 Performance RMB’000 Pension RMB’000 Total RMB’000 Executive Directors Liu Shaoyong* — — — — — Ma Xulun*&**** — — — — — Xu Zhao*&*** — — — — — Gu Jiadan*&*** — — — — — Li Yangmin*&*** — — — — — Tang Bing*&*** — — — — — Tian Liuwen*&*** — — — — — Yuan Jun** — 867 — 14 881 Independent non-executive Directors Lin Wanli** — — — — — Li Ruoshan 200 — — — 200 Ma Weihua 200 — — — 200 Shao Ruiqing 200 — — — 200 Cai Hongping 200 — — — 200 Supervisors Xi Sheng* — — — — — Gao Feng** — 251 — 19 270 Li Jinde*&** — — — — — Ba Shengji*&*** — — — — — Hu Jidong*&*** — — — — — Feng Jinxiong***** — 346 — 8 354 Jia Shaojun*&*** — — — — — Total 800 1,464 — 41 2,305 2017 Fees RMB’000 Salaries, RMB’000 Performance es RMB’000 Pension RMB’000 Total RMB’000 Executive Directors Liu Shaoyong* — — — — — Ma Xulun* — — — — — Xu Zhao* — — — — — Gu Jiadan* — — — — — Li Yangmin* — — — — — Tang Bing* — — — — — Tian Liuwen* — — — — — Independent non-executive Directors Li Ruoshan 200 — — — 200 Shao Ruiqing 200 — — — 200 Ma Weihua 200 — — — 200 Cai Hongping 200 — — — 200 Supervisors Xi Sheng* — — — — — Feng Jinxiong — 584 — 12 596 Ba Shengji* — — — — — Hu Jidong — 1,549 — 22 1,571 Jia Shaojun* — — — — — Total 800 2,133 — 34 2,967 * These directors and supervisors of the Company received emoluments from CEA Holding, the parent company, part of which were in respect of their services to the Company and its subsidiaries. No apportionment has been made as it is impracticable to apportion this amount between their services to the Group and their services to CEA Holding. ** These directors and supervisors of the Company were newly appointed or elected during the years ended December 31, 2019 and 2018, respectively. *** These directors and supervisors of the Company resigned during the years ended December 31, 2019 and 2018, respectively. **** Mr. Ma Xulun resigned on February 1, 2019. ***** Mr. Feng Jinxiong passed away due to illness during the year ended December 31, 2018.
Summary of information about benefits of directors	Directors’ and chief executive’s remuneration for the year, disclosed pursuant to the Listing Rules, section 383(1)(a), (b), (c) and (f) of the Hong Kong Companies Ordinance and Part 2 of the Companies (Disclosure of Information about Benefits of Directors) Regulation, is as follows: 2019 2018 2017 Fees 805 800 800 Other emoluments: Salaries, allowances and benefits in kind 665 1,464 2,133 Performance related bonuses* — — — Pension scheme contributions 21 41 34 1,491 2,305 2,967 * No executive directors of the Company are entitled to bonus payments which are determined as a percentage of the profit after tax of the Group.
Summary of Five Highest Paid Individuals	The emoluments payable to the five highest paid individuals were as follows: 2019 RMB ’000 2018 RMB ’000 Wages, salaries and allowances 11,413 8,938 Pension scheme contributions 185 172 11,598 9,110 The number of five highest paid individuals whose emoluments fell within the following band s Number of individuals 2019 2018 HK$2,000,001 to HK$2,500,000 2 5 HK$2,500,001 to HK$3,000,000 2 — HK$3,000,001 to HK$3,500,000 1 —

Impairment Charges (Tables)

Impairment Charges (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Impairment Charges	2019 RMB million 2018 RMB million 2017 RMB million Impairment charge on property, plant and equipment (Note 17) 4 15 379 Write-down of flight equipment spare parts to net realizable value (Note 27) — 301 112 Impairment charge on assets classified as held for sale — 2 3 4 318 494

Impairment Losses on Financia_2

Impairment Losses on Financial Assets, Net (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Impairment Losses on Financial Assets, Net	2019 RMB million 2018 RMB million 2017 RMB million Reversal of impairment losses on trade receivables (Note 28) (6 ) (21 ) (3 ) Impairment losses on other receivables (Note 30) 22 48 — 16 27 (3 )

Fair Value Changes of Derivat_2

Fair Value Changes of Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Gain/(Loss) on Fair Value Changes of Derivative Financial Instruments	2019 RMB million 2018 RMB million 2017 RMB million Forward foreign exchange contracts — 311 (311 )

Finance Income (Tables)

Finance Income (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Finance Income	2019 RMB million 2018 RMB million 2017 RMB million Interest income 96 110 111 Foreign exchange gains, net (Note 13(b)) — — 2,001 96 110 2,112

Finance Costs (Tables)

Finance Costs (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Finance Costs	2019 RMB million 2018 RMB million 2017 RMB million Interest on bank borrowings 1,149 1,569 1,590 Interest relating to lease liabilities (Note 19(c)) 3,894 — — Interest relating to obligations under finance leases — 2,440 1,845 Interest relating to post-retirement benefit obligations 92 106 98 Interest relating to provision for lease return costs for aircraft and engines 270 — — Interest on bonds and debentures 520 468 381 Interest relating to interest rate swap contracts (68 ) (6 ) 63 Less: amount capitalized into advanced payments on acquisition of aircraft ( n (687 ) (850 ) (793 ) 5,170 3,727 3,184 Foreign exchange losses, net (note (b)) 990 2,040 — 6,160 5,767 3,184 Notes: (a) The weighted average interest rate used for interest capitalization was 3.51% per annum for the year ended December 31, 2019 (2018: 3.54% and 2017: 3.40%). (b) The exchange gains and losses primarily related to the translation of the Group’s foreign currency denominated borrowings and lease liabilities (2018 and 2017: obligations under finance leases).

Income Tax Expense (Tables)

Income Tax Expense (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Income Tax Charged to Profit or Loss	Income tax charged to profit or loss was as follows: 2019 RMB million 2018 2017 Income tax 942 1,220 1,962 Deferred taxation (Note 2 6 (123 ) (294 ) (162 ) 819 926 1,800
Summary of the Reconciliation of Statutory Tax Rates to Effective Tax Rate	A reconciliation of the tax expense applicable to profit before tax at the statutory rates for the countries in which the Company and the majority of its subsidiaries are domiciled to the tax expense at the effective tax rates, is as follows: 2019 2018 2017 RMB million RMB million RMB million Profit before income tax 4,299 3,856 8,610 Tax calculated at the tax rate of 25% (2018: 25%, 2017:25%) 1,075 964 2,152 Lower tax rates enacted by local authority (139 ) (93 ) (87 ) Share of results of associates and joint ventures (71 ) (51 ) (63 ) Income not subject to tax (36 ) (9 ) (13 ) Expenses not deductible for tax 128 88 38 Utilization of previously unrecognized tax losses (11 ) (60 ) (253 ) Unrecognized tax losses for the year 17 28 48 Utilization of previously unrecognized deductible temporary differences (8 ) (1 ) (5 ) Unrecognized deductible temporary differences 3 23 2 Adjustments in respect of current tax of previous periods (34 ) 61 (8 ) Super deduction of research and development costs (27 ) (24 ) (11 ) Income tax deduction of purchase of special equipment for production safety (78 ) — — Tax charge 819 926 1,800 Effective tax rate 19.05 % 24.01 % 20.91 %

Dividends (Tables)

Dividends (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Dividends	2019 2018 2017 RMB million RMB million RMB million Proposed final – RMB0.050 per ordinary share 819 — 740

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2019
Statement [Line Items]
Summary of Property Plant and Equipment	Aircraft, engines and flight equipment Other property, plant and equipment Owned Held under Buildings Construction Total RMB million RMB million RMB million RMB million RMB million RMB million December 31, 2019 At December 31, 2018, net of accumulated depreciation and impairment 68,565 94,416 8,530 4,174 4,419 180,104 Effect of adoption of IFRS 16 — (94,416 ) — — — (94,416 ) At January 1, 2019 (restated) 68,565 — 8,530 4,174 4,419 85,688 Additions 4,137 — (41 ) 716 3,242 8,054 Disposals (10 ) — (40 ) (41 ) — (91 ) Transfer from construction in progress — — 3,523 214 (3,737 ) — Transfer from advanced payments on acquisition of aircraft 335 — — — — 335 Transfer from investment properties (Note 18) — — 76 — — 76 Transfer from right-of-use assets (Note 19(b)) 14,264 — — — — 14,264 Transfer to investment properties (Note 18) — — (23 ) — — (23 ) Transfer from/(to) other non-current assets — — — 309 (67 ) 242 Disposal of a subsidiary (Note 45) — — (8 ) (18 ) — (26 ) Depreciation provided during the year (7,812 ) — (363 ) (903 ) — (9,078 ) Impairment — — — (4 ) — (4 ) At December 31, 2019, net of accumulated depreciation and impairment 79,479 — 11,654 4,447 3,857 99,437 At December 31, 2019: Cost 133,845 — 14,153 10,217 3,857 162,072 Accumulated depreciation and impairment (54,366 ) — (2,499 ) (5,770 ) — (62,635 ) Net carrying amount 79,479 — 11,654 4,447 3,857 99,437 Aircraft, engines and flight equipment Other property, plant and equipment Owned Held under Buildings Construction Total RMB million RMB million RMB million RMB million RMB million RMB million December 31, 2018 At December 31, 2017 and at January 1, 2018: Cost 111,297 105,801 8,809 7,934 3,705 237,546 Accumulated depreciation and impairment (42,303 ) (21,041 ) (2,331 ) (5,015 ) — (70,690 ) Net carrying amount 68,994 84,760 6,478 2,919 3,705 166,856 At January 1, 2018, net of accumulated depreciation and impairment 68,994 84,760 6,478 2,919 3,705 166,856 Additions 6,057 9,821 32 1,192 4,181 21,283 Disposals (3,304 ) (1,332 ) (202 ) (54 ) — (4,892 ) Transfer from construction in progress — — 2,909 548 (3,457 ) — Transfer from advanced payments on acquisition of aircraft 824 10,696 — — — 11,520 Transfer from investment properties (Note 18) — — 18 — — 18 Transfer to investment properties (Note 18) — — (386 ) — — (386 ) Assets included in assets classified as held for sale (13 ) — — — — (13 ) Transfer from/(to) other non-current — — — 359 (10 ) 349 Depreciation provided during the year (6,798 ) (6,709 ) (318 ) (791 ) — (14,616 ) Impairment (15 ) — — — — (15 ) Transfers 2,820 (2,820 ) (1 ) 1 — — At December 31, 2018, net of accumulated depreciation and impairment 68,565 94,416 8,530 4,174 4,419 180,104 At December 31, 2018: Cost 111,968 117,824 10,689 9,462 4,419 254,362 Accumulated depreciation and impairment (43,403 ) (23,408 ) (2,159 ) (5,288 ) — (74,258 ) Net carrying amount 68,565 94,416 8,530 4,174 4,419 180,104
Aircraft [member]
Statement [Line Items]
Summary of Property Plant and Equipment	The following table indicates the cost and net carrying amount of the Group’s aircraft pledged as collateral under certain borrowing arrangements (Note 38): 2019 2018 Cost Net carrying amount Cost Net carrying amount RMB million RMB million RMB million RMB million Aircraft - pledged as collateral 10,819 7,243 11,752 8,391

Investment Properties (Tables)

Investment Properties (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Investment Properties	2019 2018 RMB million RMB million Cost At January 1 940 392 Transfer from property, plant and equipment (Note 17) 35 474 Transfer from right-of-use assets (Note 19(b)) 13 — Transfer from intangible asset — 98 Transfer to property, plant and equipment (Note 17) (101 ) (24 ) Transfer to right-of-use assets (Note 19(b)) (4 ) — At December 31 883 940 Accumulated depreciation At January 1 216 90 Transfer from property, plant and equipment (Note 17) 12 88 Transfer from right-of-use assets (Note 19(b)) 3 — Transfer from intangible assets — 18 Transfer to property, plant and equipment (Note 17) (25 ) (6 ) Transfer to right-of-use assets (Note 19(b)) (1 ) — Charge for the year (Note 7) 25 26 At December 31 230 216 Net book amount At December 31 653 724
Summary of Fair Value Measurement Hierarchy of Investment Properties	The following table illustrates the fair value measurement hierarchy of the Group’s investment properties: Buildings Fair value measurement using Quoted prices (Level 1) Significant (Level 2) Significant (Level 3) Total RMB million RMB million RMB million RMB million Not measured at fair value but fair value is disclosed: As at December 31, 2019 — 144 981 1,125 As at December 31, 2018 — 243 884 1,127

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2019
Presentation of leases for lessee [abstract]
Disclosure Of Prepayments For Land Use Rights	(a) Prepayments for land use rights (before January 1, 2019) RMB million Carrying amount at January 1, 2018 1,717 Recognized in profit or loss during the year (330 ) Carrying amount at December 31, 2018 1,387
Disclosure Of Right Of Use Assets And The Movements	(b) Right-of-use The carrying amounts of the Group’s right-of-use Aircraft, engines and flight equipment RMB million Prepayments RMB million Buildings RMB million Others RMB million Total RMB million Cost at January 1, 2019, net of accumulated depreciation 126,417 1,387 496 12 128,312 Additions 26,315 1 622 73 27,011 Transfer from investment properties (Note 18) — 3 — — 3 Transfer to property, plant and equipment (Note 17) (14,264 ) — — — (14,264 ) Transfer to investment properties (Note 18) — (10 ) — — (10 ) Disposal of a subsidiary (Note 45) — — (10 ) — (10 ) Disposals (40 ) — — — (40 ) Depreciation provided during the year (11,964 ) (38 ) (284 ) (12 ) (12,298 ) At December 31, 2019 126,464 1,343 824 73 128,704 At December 31, 2019: Cost 172,690 1,662 1,108 85 175,545 Accumulated depreciation (46,226 ) (319 ) (284 ) (12 ) (46,841 ) Net carrying amount 126,464 1,343 824 73 128,704
Disclosure Of Lease Liabilities	(c) Lease liabilities The carrying amount of lease liabilities and the movements during the year are as follows: 2019 RMB million 2018 RMB million Carrying amount at January 1 77,427 66,868 Effect of adoption IFRS16 31,879 — Carrying amount at January 1 (restated) 109,306 66,868 New leases 24,023 18,769 Effect of foreign exchange 851 1,419 Disposal of a subsidiary (Note 45) (10 ) — Accretion of interest recognized during the year 3,894 2,440 Payments (27,789 ) (12,069 ) Carrying amount at December 31 110,275 77,427 Analyzed into: Current portion 15,590 9,364 Non-current 94,685 68,063
Schedule of undiscounted lease payments receivables	(d) The amounts recognized in profit or loss in relation to leases are as follows: 2019 RMB million Interest on lease liabilities 3,894 Depreciation charge of right-of-use 12,298 Low value and short-term lease rental 631 Total amount recognized in profit or loss 16,823
Disclosure of lease expenses	At December 31, 2019, the undiscounted lease payments receivable by the Group in future periods under non-cancellable 2019 RMB million Within one year 165 After one year but within two years 149 After two years but within three years 144 After three years but within four years 139 After four years but within five years 138 After five years 221 956

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Intangible Assets	Goodwill Computer Others Total RMB million RMB million RMB million RMB million December 31, 2019 Cost at January 1, 2019, net of accumulated amortization 11,270 339 — 11,609 Additions — 199 — 199 Transfer from construction in process — 36 — 36 Disposals — (3 ) — (3 ) Amortization provided during the year — (143 ) — (143 ) At December 31, 2019 11,270 428 — 11,698 At December 31, 2019: Cost 11,270 1,301 98 12,669 Accumulated amortization (873 ) (98 ) (971 ) Net carrying amount 11,270 428 — 11,698 Goodwill Computer Others (note (b)) Total RMB million RMB million RMB million RMB million December 31, 2018 Cost at January 1, 2018, net of accumulated amortization 11,270 293 33 11,596 Additions — 166 — 166 Transfer from construction in process — 7 — 7 Amortization provided during the year — (127 ) (33 ) (160 ) At December 31, 2018 11,270 339 — 11,609 At December 31, 2018: Cost 11,270 1,077 98 12,445 Accumulated amortization — (738 ) (98 ) (836 ) Net carrying amount 11,270 339 — 11,609 Notes: (a) The balance represents goodwill arising from the acquisition of Shanghai Airlines. The value of the goodwill is attributable to strengthening the competitiveness of the Group’s airline transportation operations, attaining synergy through integration of the resources and accelerating the development of international air transportation in Shanghai. For the purpose of impairment assessment, goodwill was allocated to the cash-generating unit (“CGU”) that the Group operates and benefits from the acquisition. The recoverable amount of the CGU has been determined based on a value-in-use post-tax value-in-use (b) The balance represents the costs incurred to acquire the use right of certain flight schedules (i.e. timeslots for flights’ taking off/landing).

Investments in Associates (Tabl

Investments in Associates (Tables)	12 Months Ended
	Dec. 31, 2019
Investments accounted for using equity method [abstract]
Summary of Investments in Associates	2019 2018 RMB million RMB million Share of net assets 1,977 1,696 The movements in investments in associates were as follows: 2019 2018 RMB million RMB million At January 1 1,696 1,654 Additions 95 — Share of results of associates 265 170 Share of revaluation on equity investments designated at fair value through other comprehensive income held by an associate 7 (24 ) Share of other equity changes of an associate 8 — Dividend received during the year (85 ) (104 ) Disposal of a subsidiary (Note 45) (9 ) — At December 31 1,977 1,696
Summary of Principal Associates	Particulars of the principal associates, which are limited liability companies, are as follows: Company name Place of Registered capital Attributable Principal activities 2019 2018 2019 2018 Million Million Eastern Air Group Finance Co., Ltd. (“Eastern Air Finance Company”) PRC/Mainland China December 6, 1995 RMB2,000 RMB2,000 25% 25% Provision of financia l services to group China Eastern Air Catering Investment Co., Ltd. PRC/Mainland China November 17, RMB350 RMB350 45% 45% Provision of air catering services Shanghai Pratt & Whitney Aircraft Engine Maintenance Co., Ltd. (“Shanghai P&W”) (note) PRC/Mainland China March 28, 2008 USD40 USD40 51% 51% Provision of aircraft, New Shanghai International Tower Co., Ltd. PRC/Mainland China November 17, RMB167 RMB167 20% 20% Property Eastern Aviation Import & Export Co., Ltd. (“Eastern Import & Export”) PRC/Mainland China June 9, 1993 RMB80 RMB80 45% 45% Provision of aviation Eastern Aviation Advertising Service Co., Ltd. (“Eastern Advertising”) PRC/Mainland China March 4, 1986 RMB200 RMB200 45% 45% Provision of aviation Shanghai Collins Aviation Maintenance Service Co., Ltd. (“Collins Aviation”) PRC/Mainland China September 27, USD7 USD7 35% 35% Provision of airline Shanghai Airlines Tours International (Group) Co., Ltd. (“Shanghai Airlines Tours”) PRC/Mainland China August 29, 1992 RMB143 RMB50 35% 100% Tour operations, Note:
Summary of Aggregate Financial Information of Associates	The following table illustrates the aggregate financial information of the Group’s associates that were not individually material: 2019 2018 RMB million RMB million Share of the associates’ profit for the year 265 170 Share of the associates’ other comprehensive income 7 (24 ) Share of the associates’ total comprehensive income 272 146 Aggregate carrying amount of the Group’s interests in the associates 1,977 1,696

Investments in Joint Ventures (

Investments in Joint Ventures (Tables)	12 Months Ended
	Dec. 31, 2019
Investments accounted for using equity method [abstract]
Summary of Investments in Joint Ventures	2019 2018 RMB million RMB million Share of net assets 627 577 The movements in investments in joint ventures were as follows: 2019 2018 RMB million RMB million At January 1 577 557 Additions 102 16 Share of results 17 34 Dividend received during the year (69 ) (30 ) At December 31 627 577
Summary of Principal Joint Ventures	Particulars of the principal joint ventures, which are limited liability companies, are as follows: Company name Place of establishment Paid-up Attributable Principal activities 2019 2018 2019 2018 Million Million Shanghai Technologies Aerospace Co., Ltd. (“Technologies Aerospace”) (note) PRC/Mainland China September 28, 2004 USD73 USD73 51% 51% Provision of repair and Shanghai Eastern Union Aviation Wheels & Brakes Maintenance Services Overhaul Engineering Co., Ltd. (“Wheels & Brakes”) PRC/Mainland China December 28, 1995 USD2 USD2 40% 40% Provision of spare Eastern China Kaiya System Integration Co., Ltd. (“China Kaiya”) PRC/Mainland China May 21, 1999 RMB10 RMB10 41% 41% Provision of computer CAE Melbourne Flight Training Pty Ltd. (“CAE Melbourne”) Australia March 9, 2007 AUD11 AUD11 50% 50% Provision of flight Shanghai Hute Aviation Technology Co., Ltd. (“Shanghai Hute”) PRC/Mainland China April 9, 2003 RMB30 RMB30 50% 50% Provision of Xi’an CEA SAFRAN Landing Systems Services Co., Ltd. (“XIESA”) PRC/Mainland China July 12, 2017 USD40 USD40 50% 50% Provision of aircraft, Note:
Summary of Aggregate Financial Information of Joint Ventures	The following table illustrates the aggregate financial information of the Group’s joint ventures that were not individually material: 2019 2018 RMB million RMB million Share of the joint ventures’ profit for the year 17 34 Share of the joint ventures’ total comprehensive income 17 34 Aggregate carrying amount of the Group’s interests in the joint ventures 627 577

Equity Investments Designated_2

Equity Investments Designated at Fair Value Through Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Equity Investments Designated at Fair Value Through Other Comprehensive Income	2019 2018 RMB million RMB million Listed equity investments, at fair value TravelSky Technology Limited 496 510 496 510 Unlisted equity investments, at fair value Sichuan Airlines Corporation Limited 336 438 Aviation Data Communication Corporation Limited 244 161 Others 198 138 778 737 1,274 1,247

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Derivative Financial Instruments	Assets Liabilities 2019 2018 2019 2018 RMB million RMB million RMB million RMB million At December 31 Forward currency contracts 43 — 13 29 Interest rate swaps 27 223 10 — Total 70 223 23 29 Less: current portion – Forward currency contracts 43 — 13 29 – Interest rate swaps — 1 — — Non-current 27 222 10 —
Summary of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments	The Group holds the following forward currency contracts and interest rate swap contracts: Maturity Less than 3 to 6 6 to 9 9 to 12 Over 1 Total As at December 31, 2019 Forward currency contracts (Capital expenditures) Notional amount (in RMB million) — 628 1,047 1,046 — 2,721 Average forward rate (RMB/USD) — 7.0151 6.9325 6.9988 — 6.9771 Forward currency contracts (Highly probable forecasted purchases) Notional amount (in RMB million) — — 1,835 858 — 2,693 Average forward rate (RMB/USD) — — 6.9629 6.8810 — 6.9368 Interest rate swaps (Payment on lease liabilities) Notional amount (in RMB million) 31 30 — — 6,133 6,194 Hedged rate (%) 2.0450 1.8800 — — 1.6803 1.6831
Summary of Impacts of Hedging Instruments on Statement of Financial Position	The impacts of the hedging instruments on the statement of financial position are as follows: Notional Carrying Line item in the statement Change in RMB million RMB million RMB million As at December 31, 2019 Forward currency contracts (Capital expenditures) 2,721 8 Derivative financial instruments 141 Forward currency contracts (Highly probable forecasted purchases) 2,693 22 Derivative financial instruments 22 Forward currency contracts (Payment on bonds) — — Derivative financial instruments 14 Interest rate swaps (Payment on lease liabilities) 6,194 17 Derivative financial instruments (137 )
Summary of impacts of Hedged Items on Statement of Financial Position	The impacts of the hedged items on the statement of financial position are as follows: Change in fair value used for measuring Cash flow hedge reserve RMB million RMB million As at December 31, 2019 Capital expenditures 141 8 Highly probable forecasted purchases 22 22 Payment on bonds 14 — Payment on lease liabilities (163 ) 17 14 47
Summary of Effects of Cash Flow Hedge on Statement of Profit or Loss and Statement of Comprehensive Income	The effects of the cash flow hedge on the statement of profit or loss and the statement of comprehensive income are as follows: Total hedging gain/(loss) Hedge recognized in Line item in the statement Amount reclassified from other Line item the statement of Gross Tax Total Gross Tax Total RMB million RMB million RMB million RMB million RMB million RMB million RMB million Year ended December 31, 2019 Capital expenditures 141 (35 ) 106 — N/A (82 ) 20 (62 ) Finance Costs Highly probable forecasted purchases 22 (6 ) 16 — N/A (22 ) 6 (16 ) Finance Costs Payment on bonds 14 (4 ) 10 — N/A (14 ) 4 (10 ) Finance Costs Payment on lease liabilities (137 ) 34 (103 ) — N/A (68 ) 17 (51 ) Finance Costs

Other Non-current Assets (Table

Other Non-current Assets (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Other Non-current Assets	2019 2018 RMB million RMB million Deposits relating to aircraft held under leases 156 177 Deferred pilot recruitment costs 1,873 1,536 Rebate receivables on aircraft acquisitions 42 55 Prepayment for acquisition of property, plant and equipment 1,095 854 Others 804 748 3,970 3,370

Deferred Taxation (Tables)

Deferred Taxation (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Net Deferred Tax Assets/(Liabilities)	The following amounts, determined after appropriate offsetting, are shown in the consolidated statement of financial position: 2019 2018 RMB million RMB million Deferred tax assets 853 207 Deferred tax liabilities (22 ) (84 ) Net deferred tax assets 831 123
Summary of Movements in Net Deferred Tax Assets/(Liabilities)	Movements in the net deferred tax assets/(liabilities) were as follows: 2019 RMB million At December 31, 2018 123 Effect of adoption of IFRS 16 554 At January 1, 2019 (restated) 677 Credited to profit or loss (Note 14) 123 Charged to other comprehensive income 31 At December 31, 2019 831 2018 RMB million At January 1, 2018 (240 ) Credited to profit or loss (Note 14) 294 Charged to other comprehensive income 69 At December 31, 2018 123
Summary of Deferred Tax Assets and Liabilities Prior to Offsetting of Balances within Same Tax Jurisdiction	The deferred tax assets and liabilities (prior to the offsetting of balances within the same tax jurisdiction) were made up of the taxation effects of the following: 2019 2018 RMB million RMB million Deferred tax assets: Provision for lease return costs for aircraft and engines 1,075 — Impairment provision for flight equipment spare parts 53 126 Impairment provision for receivables 76 75 Impairment provision for property, plant and equipment 101 103 Derivative financial instruments 6 7 Financial asset at fair value through profit or loss — 6 Other payables and accruals 71 89 Government grants related to assets 35 42 Deferred gains in sale and leaseback transactions — 6 Loss available for offsetting against future taxable profits 66 — Aged payables 1 2 1,484 456 Deferred tax liabilities: Lease liabilities/Right-of-use (352 ) — Equity investments designated at fair value through other comprehensive income (283 ) (278 ) Derivative financial instruments (18 ) (55 ) (653 ) (333 ) 831 123
Summary of Movements in Net Deferred Tax (Liabilities)/Assets of the Group	Movements in the net deferred tax assets/(liabilities) of the Group for the year were as follows: At Effect of At January 1 (Charged)/ (Charged)/ At For the year ended December 31, 2019 Provision for lease return costs for aircraft and engines — 882 882 193 — 1,075 Impairment provision for flight equipment spare parts 126 — 126 (73 ) — 53 Impairment provision for receivables 75 — 75 1 — 76 Impairment provision for property, plant and equipment 103 — 103 (2 ) — 101 Derivative financial instruments 7 — 7 — (1 ) 6 Financial asset at fair value through profit or loss 6 — 6 (6 ) — — Other payables and accruals 89 — 89 (18 ) — 71 Government grants related to assets 42 — 42 (7 ) — 35 Deferred gains in sale and leaseback transactions 6 — 6 (6 ) — — Loss available for offsetting against future taxable profits — — — 66 — 66 Aged payables 2 — 2 (1 ) — 1 456 882 1,338 147 (1 ) 1,484 Lease liabilities/Right-of-use assets — (328 ) (328 ) (24 ) — (352 ) Equity investments designated at fair value through other comprehensive income (278 ) — (278 ) — (5 ) (283 ) Derivative financial instruments (55 ) — (55 ) — 37 (18 ) (333 ) (328 ) (661 ) (24 ) 32 (653 ) Net deferred tax assets/(liabilities) 123 554 677 123 31 831 At January 1 RMB million (Charged)/ (Charged)/ credited to other At 8 For the year ended December 31, 2018 Impairment provision for flight equipment spare parts 51 75 — 126 Impairment provision for receivables 72 3 — 75 Impairment provision for property, plant and equipment 104 (1 ) — 103 Derivative financial instruments 82 (78 ) 3 7 Financial asset at fair value through profit or loss — 6 — 6 Other payables and accruals 29 60 — 89 Government grants related to assets — 42 — 42 Deferred gains in sale and leaseback transactions — 6 — 6 Aged payables 5 (3 ) — 2 343 110 3 456 Depreciation and amortization (56 ) 56 — — Equity investments designated at fair value through other comprehensive income (361 ) — 83 (278 ) Derivative financial instruments (38 ) — (17 ) (55 ) Passenger ticket breakage (128 ) 128 — — (583 ) 184 66 (333 ) Net deferred tax assets/(liabilities) (240 ) 294 69 123
Summary of Balances for Which Deferred Tax Assets Have Not Been Recognised	As at the reporting date, the Group had the following balances in respect of which deferred tax assets have not been recognized: 2019 2018 Deferred RMB million Temporary RMB million Deferred RMB million Temporary RMB million Tax losses carried forward 54 217 67 267 Other deductible temporary differences 7 30 27 126 Total unrecognized deferred tax assets 61 247 94 393

Flight Equipment Spare Parts (T

Flight Equipment Spare Parts (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
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Summary of Flight Equipment Spare Parts		2019 2018 RMB million RMB million Flight equipment spare parts 2,732 2,778 Less: provision for spare parts (325) (828 ) 2,407 1,950
Summary of Movements in Provision for Impairment of Flight Equipment Spare Parts	Movements in the Group’s provision for impairment of flight equipment spare parts were as follows: 2019 2018 RMB million RMB million At January 1 828 531 Accrual (Note 9) — 301 Amount written off in relation to disposal of spare parts (503) (4 ) At December 31 325 828

Trade and Notes Receivables (Ta

Trade and Notes Receivables (Tables)	12 Months Ended
	Dec. 31, 2019
Statement [Line Items]
Summary of Trade and Notes Receivables	The credit terms given to trade customers are determined on an individual basis. 2019 2018 RMB million RMB million Trade receivables 1,793 1,525 Notes receivable — 4 1,793 1,529 Impairment (76 ) (93 ) 1,717 1,436
Summary of Ageing Analysis of Trade Receivables and Net of Loss Allowance	An aging analysis of the trade receivables as at the end of the reporting period, based on the invoice/billing date and net of loss allowance, is as follows: 2019 RMB million 2018 RMB million Within 90 days 1,615 1,354 91 to 180 days 33 52 181 to 365 days 39 11 Over 365 days 30 15 1,717 1,432
Schedule of Credit Risk Exposure on Group's Trade Receivables	Set out below is the information about the credit risk exposure on the Group’s trade receivables using a provision matrix: As at December 31, 2019 Past due Current Less than 90 to 365 Over Total Expected credit loss rate (%) 0.12 2.94 2.50 70.59 4.24 Gross carrying amount (RMB million) 1,617 34 40 102 1,793 Expected credit losses (RMB million) 2 1 1 72 76 As at December 31, 2018 Past due Current Less than 90 to 365 Over Total Expected credit loss rate (%) 0.57 0.78 1.59 83.17 6.10 Gross carrying amount (RMB million) 1,232 129 63 101 1,525 Expected credit losses (RMB million) 7 1 1 84 93
Trade and notes receivables [member]
Statement [Line Items]
Summary of Provision for Impairment of Trade Receivables	The movements in the loss allowance for impairment of trade receivables are as follows: 2019 RMB million 2018 RMB million At beginning of year 93 119 Impairment losses, net (Note 10) (6 ) (21 ) Amount written off as uncollectible (4 ) (5 ) Disposal of a subsidiary (7 ) — At end of year 76 93

Financial Asset at Fair Value_2

Financial Asset at Fair Value Through Profit or Loss (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Financial Assets at Fair Value Through Profit or Loss	2019 RMB million 2018 RMB million Listed equity investment, at fair value Shanghai Pudong Development Bank Co., Ltd. 121 96

Prepayments and Other Receiva_2

Prepayments and Other Receivables (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Prepayments and Other Receivables	2019 RMB million 2018 RMB million Value added tax recoverable 6,991 5,484 Value added tax refundable 800 979 Subsidy receivable 2,072 2,092 Prepaid corporate income tax 608 306 Advance to suppliers 129 222 Prepaid aircraft operating lease rentals — 478 Refundable advanced payment on acquisition of aircraft 538 — Rebate receivables on aircraft acquisitions 1,582 1,399 Amounts due from related parties (Note 48(c)(i)) 776 278 Deposits relating to aircraft held under leases 29 13 Other deposits 168 194 Others 663 577 14,356 12,022 Provision for impairment of other receivables (263 ) (246 ) 14,093 11,776
Schedule of Movements of Loss Allowances Measured at 12-month and Lifetime Expected Credit Losses Included in Other Receivables and Gross Carrying Amounts of Fnancial Assets	Set out below are the movements of loss allowances measured at 12-month 12-month ECLs Lifetime ECLs Stage 1 Stage 2 Stage 2 Stage 3 Total As at January 1, 2019 16 — 108 122 246 Transferred - to stage 2 (1 ) — 1 — — Accrual 18 — 4 — 22 Disposal of a subsidiary — — (5 ) — (5 ) As at December 31, 2019 33 — 108 122 263 12-month ECLs Lifetime ECLs Stage 1 Stage 2 Stage 2 Stage 3 Total As at January 1, 2018 4 — 72 122 198 Transferred - to stage 2 (1 ) — 1 — — Accrual 13 — 36 — 49 Reversal — — (1 ) — (1 ) As at December 31, 2018 16 — 108 122 246 The gross carrying amounts of the financial assets affecting the loss allowances above are as follows. 12-month ECLs Lifetime ECLs Stage 1 Stage 2 Stage 2 Stage 3 Total As at January 1, 2019 2,298 298 259 122 2,977 Transferred - to stage 2 (160 ) 160 — — — Accrual 1,066 — (265 ) — 801 Reversal (26 ) — (17 ) — (43 ) As at December 31, 2019 3,178 458 (23 ) 122 3,735 12-month ECLs Lifetime ECLs Stage 1 Stage 2 Stage 2 Stage 3 Total As at January 1, 2018 2,394 — 25 122 2,541 Transferred - to stage 2 (399 ) 298 101 — — Accrual 303 — 138 — 441 Reversal — — (5 ) — (5 ) As at December 31, 2018 2,298 298 259 122 2,977

Restricted Bank Deposits and _2

Restricted Bank Deposits and Short-term Bank Deposits (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Restricted Bank Deposits and Short-term Bank Deposits	2019 RMB million 2018 RMB million Restricted bank deposits 6 16

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Cash and Cash Equivalents	2019 RMB million 2018 RMB million Cash 1 1 Bank balances 1,349 645 1,350 646

Trade and Bills Payables (Table

Trade and Bills Payables (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Analysis of Trade and Bills Payables	An aging analysis of the trade and bills payables as at the end of the reporting period, was as follows: 2019 RMB million 2018 RMB million Within 90 days 3,622 3,594 91 to 180 days 52 49 181 to 365 days 94 157 1 to 2 years 40 100 Over 2 years 69 140 3,877 4,040

Contract Liabilities (Tables)

Contract Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary Of Contract liabilities	2019 RMB million 2018 RMB million Sales in advance of carriage 8,754 7,638 Frequent flyer program (Note 5) 2,057 2,046 Advances from customers 866 712 11,677 10,396 Current portion 10,178 8,811 Non-current 1,499 1,585

Other Payables and Accruals (Ta

Other Payables and Accruals (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Other Payables and Accruals	2019 RMB million 2018 RMB million Salaries, wages and benefits 2,794 2,854 Take-off 3,052 2,828 Fuel cost 1,109 1,225 Expenses related to aircraft overhaul conducted 1,810 1,324 Deposits from customers 18 6 Duties and levies payable 1,983 1,792 Food and beverages 253 349 Payments on system services 879 650 Lease rentals of property, plant and equipment 515 411 Other accrued operating expenses 991 701 Payable for purchase of property, plant and equipment 3,454 2,783 Interest payable 1,249 1,189 Pending output value added tax 412 378 Deposits received from ticket sales agents 507 502 Other deposits 570 576 Current portion of other long-term liabilities (Note 41) 294 234 Staff housing allowance 224 265 Amounts due to related parties (Note 48(c)(ii)) 383 1,093 Current portion of post-retirement benefit obligations (Note 40(b)) 165 168 Others 1,940 1,815 22,602 21,143

Obligations Under Finance Lea_2

Obligations Under Finance Leases (Tables)	12 Months Ended
	Dec. 31, 2019
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Summary of Future Minimum Lease Payments (Including Interest), and Present Value of Minimum Lease Payments Under Finance Leases	At December 31, 2018, the future minimum lease payments under finance leases and their present values were as follows: 2018 RMB million Within one year 11,974 In the second year 12,014 In the third to fifth years, inclusive 30,018 After the fifth year 36,974 Total of minimum lease payments 90,980 Present values of minimum lease payments 79,006 Less: amounts repayable within one year (9,364 ) Non-current portion 68,063

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2019
Statement [Line Items]
Summary of Borrowings	2019 RMB million 2018 RMB million Non-current Long-term bank borrowings – secured (note (a)) 2,995 3,934 – unsecured 828 4,556 Guaranteed bonds (note (b)) 12,784 13,377 Unsecured bonds (note (b)) 9,997 4,000 26,604 25,867 Current Current portion of long-term bank borrowings – secured (note (a)) 939 997 – unsecured 1,009 76 Current portion of guaranteed bonds (note (b)) 2,585 732 Current portion of unsecured bonds (note (b)) — 4,834 Short-term bank borrowings – unsecured 2,200 8,120 Short-term debentures (note (c)) 18,500 14,500 25,233 29,259 51,837 55,126 The borrowings are repayable as follows: 2019 2018 RMB million RMB million Within one year 25,233 29,259 In the second year 8,104 7,469 In the third to fifth years, inclusive 14,821 14,258 After the fifth year 3,679 4,140 Total borrowings 51,837 55,126 Notes: (a) As at December 31, 2019, the secured bank borrowings of the Group were secured by the related aircraft and buildings with a net carrying amount of RMB7,243 million (2018: RMB8,391 million) (Note 17). (b) On March 18, 2013, the Company issued ten-year On July 14, 2016, the Company issued five-year medium-term bonds with a principal amount of RMB4 billion, at an issue price equal to the face value of the bonds. The bonds bear interest at the rate of 3.39% per annum, which is payable annually. The principal of the bonds will mature and become repayable on July 14, 2021. On October 24, 2016, the Company issued ten-year corporate bonds with a total principal amount of RMB3 billion, of which bonds of RMB1.5 billion bear interest at the rate of 3.03% per annum and the remaining bonds of RMB1.5 billion bear interest at the rate of 3.30% per annum. The bonds interest is payable annually. The principal of the bonds will mature and become repayable on October 24, 2026. CEA Holding has unconditionally and irrevocably guaranteed the due payment and performance of the above bonds (Note 48(d)). On November 16, 2017, Eastern Air Overseas issued three-year corporate bonds with a principal amount of SGD500 million, at an issue price equal to the face value of the bonds. The bonds bear interest at the rate of 2.80% per annum, which is payable semi-annually. The principal of the bonds will mature and become repayable on November 16, 2020. The Company has unconditionally and irrevocably guaranteed the due payment and performance of the above bonds. On March 16, 2018, the Company issued three-year Credit Enhanced bonds with a total principal amount of JPY10 billion . On March 16, 2018, the Company issued three-year Credit Enhanced bonds with a total principal amount of JPY20 billion . On March 16, 2018, the Company issued three-year Credit Enhanced bonds with a total principal amount of JPY20 billion. The bonds bear interest at the rate of 0.64% per annum, which is payable semi-annually. The principal of the bonds will mature and become repayable on March 16, 2021. The bonds are secured by a standby letter of credit issued by Industrial and Commercial Bank of China Limited acting through its Shanghai Municipal Branch. On March 7, 2019, the Company issued three-year medium-term bonds with a principal amount of RMB3 billion, at an issue price equal to the face value of the bonds. The bonds bear interest at the rate of 3.70% per annum, which is payable annually. The principal of the bonds will mature and become repayable on March 7, 2022. On August 19, 2019, the Company issued five-year corporate bonds with a total principal amount of RMB3 billion. The bonds bear interest at the rate of 3.60% per annum, which is payable annually. The principal of the bonds will mature and become repayable on August 19, 2024. On December 6, 2019, Eastern Air Overseas issued three-year corporate bonds with a principal amount of KRW300 billion, at an issue price equal to the face value of the bonds. The bonds bear interest at the rate of 2.40% per annum, which is payable annually. The principal of the bonds will mature and become repayable on December 6, 2022. The Company has unconditionally and irrevocably guaranteed the due payment and performance of the above bonds. c) On May 29, 2019, the Company issued short-term debentures with a principal of RMB2 billion and maturity of 267 days. The debentures bear interest at the rate of 3.10% per annum. On June 13, 2019, the Company issued short-term debentures with a principal of RMB3 billion and maturity of 266 days. The debentures bear interest at the rate of 3.15% per annum. On July 3, 2019, the Company issued short-term debentures with a principal of RMB3 billion and maturity of 267 days. The debentures bear interest at the rate of 2.98% per annum. On October 25, 2019, the Company issued short-term debentures with a principal of RMB3 billion and maturity of 179 days. The debentures bear interest at the rate of 2.00% per annum. On November 15, 2019, the Company issued short-term debentures with a principal of RMB3 billion and maturity of 270 days. The debentures bear interest at the rate of 2.00% per annum. On November 26, 2019, the Company issued short-term debentures with a principal of RMB2 billion and maturity of 177 days. The debentures bear interest at the rate of 1.70% per annum. On December 6, 2019, the Company issued short-term debentures with a principal of RMB2.5 billion and maturity of 270 days. The debentures bear interest at the rate of 2.00% per annum.
Long-term borrowings [member]
Statement [Line Items]
Summary of Borrowings	The terms of the long-term borrowings and bonds were summarized as follows: Interest rate and final maturities 2019 2018 RMB million RMB million Long-term bank borrowings RMB denominated interest rates ranging from 2.65% to 3.92% with final maturities through 2024 (2018: 3.10% to 3.48%) 1,828 4,528 USD denominated interest rates ranging from 6-month 6-month 2 6-month 6-month 870 1,469 EUR denominated interest rates at 3 months Euribor+0.5% with final maturities through 2026 (2018: 3 months Euribor+0.5%) 3,073 3,566 Guaranteed bonds RMB denominated interest rates ranging from 3.03% to 5.05% with final maturities through 2026 (2018: 3.03% to 5.05%) 7,796 7,795 SGD denominated interest rates at 2.80% with final maturities through 2020 (2018: 2.80%) 2,585 2,498 JPY denominated interest rates ranging from 0.33% to 0.64% with final maturities through 2021 (2018: 0.33% to 0.64%) 3,197 3,084 KRW denominated interest rate at 2.40% with final maturities through 2022 (2018: 2.05%) 1,791 732 Unsecured bonds RMB denominated interest rates ranging from 3.39% to 3.70% with final maturities through 2024 (2018: from 3.00% to 3.39%) 9,997 8,500 KRW denominated interest rate at 2.85% with final maturities through 2019 (2018: 2.85%) — 334 31,137 32,506

Provision For Lease Return Co_2

Provision For Lease Return Costs For Aircraft And Engines (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Provision for Return Condition Checks for Aircraft Under Operating Leases	Details of provision for lease return costs for aircraft and engines are as follows: 2019 2018 RMB million RMB million Carrying amount at January 1 2,906 3,019 Effect of adoption IFRS 16 3,654 — Carrying amount At January 1 (restated) 6,560 3,019 Accrual 702 402 Utilization (84 ) (515 ) At December 31 7,178 2,906 Less: current portion (519 ) (145 ) Non-current portion 6,659 2,761

Post-Retirement Benefit Oblig_2

Post-Retirement Benefit Obligations (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Post-retirement Benefit Obligations Recognized in Consolidated Statement of Financial Position	The post-retirement benefit obligations recognized in the consolidated statement of financial position are as follows: 2019 RMB million 2018 RMB million Post-retirement benefit obligations 2,584 2,712 Less: current portion (165 ) (168 ) Non-current 2,419 2,544
Summary of Principal Actuarial Assumptions Utilized	The principal actuarial assumptions utilized as at the end of the reporting period are as follows: 2019 2018 Discount rates for post-retirement benefits 3.40% 3.50% Mortality rate China Insurance Life Mortality China Insurance Life Mortality Table (2010-2013). Table (2010-2013). Annual increase rate of post-retirement medical expenses 6.50% 6.50% Inflation rate of pension benefits 2.50% 2.50%
Summary of Quantitative Sensitivity Analysis for Significant Assumptions	A quantitative sensitivity analysis for significant assumptions at the end of the reporting period is shown below: Increase Increase/ post-retirement Decrease Increase/ post-retirement 2019 Discount rate for post-retirement benefits 0.25 (74 ) 0.25 77 Annual increase rate of pension benefits 1.00 260 1.00 (222 ) Annual increase rate of medical expenses 1.00 36 1.00 (30 ) 2018 Discount rate for post-retirement benefits 0.25 (80 ) 0.25 84 Annual increase rate of pension benefits 1.00 288 1.00 (244 ) Annual increase rate of medical expenses 1.00 41 1.00 (34 )
Summary of Expected Contributions of Post-retirement Benefit Obligations	Expected contributions to be made in the future years out of the post-retirement benefit obligations were as follows: 2019 RMB million 2018 RMB million Within the next 12 months 165 168 Between 2 and 5 years 661 678 Between 6 and 10 years 809 841 Over 10 years 2,534 2,802 Total expected payments 4,169 4,489
Summary of Movements in Post-retirement Benefit Obligations	The movements in the post-retirement benefit obligations were as follows: 2019 Pension cost charged to profit or loss Remeasurement (gains)/losses January 1 Service cost Net interest Sub-total Actuarial Actuarial Experience Sub-total included comprehensive Benefit December 31 Defined benefit obligations/ benefit liability 2,712 — 92 92 30 — (70 ) (40 ) (180 ) 2,584 2018 Pension cost charged to profit or loss Remeasurement (gains)/losses January 1 Service cost Net interest Sub-total Actuarial Actuarial Experience Sub-total included comprehensive Benefit December 31 Defined benefit obligations/ benefit liability 2,670 — 106 106 184 — (69 ) 115 (179 ) 2,712

Other Long-term Liabilities (Ta

Other Long-term Liabilities (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Other Long-term Liabilities	2019 2018 RMB million RMB million Long-term duties and levies payable relating to leases 1,487 1,398 Deferred gains in sale and leaseback transactions — 1,115 Deferred gains relating to government grants 152 179 Provision for early retirement benefit obligations and other benefit obligations 295 324 Other long-term payables 638 666 2,572 3,682 Less: current portion included in other payables and accruals (Note 36) (294 ) (234 ) Non-current 2,278 3,448

Share Capital (Tables)

Share Capital (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Share Capital	2019 2018 RMB million RMB million Registered, issued and fully paid of RMB1.00 each A shares listed on the Shanghai Stock Exchange (“A Shares”) 11,202 9,808 – Tradable shares with trading moratorium 1,394 — – Tradable shares without trading moratorium 9,808 9,808 H shares listed on the Stock Exchange of Hong Kong Limited (“H Shares”) 5,177 4,659 – Tradable shares with trading moratorium 518 — – Tradable shares without trading moratorium 4,659 4,659 16,379 14,467
Summary of Movements in Share Capital	A summary of movements in the Company’s share capital is as follows: Number of million At December 31, 2018 and January 1, 2019 14,467 Issue of shares ( n 1,912 At December 31, 2019 16,379 Note(a) According to the approval of China Securities Regulatory Commission, the Company completed the non-public issuance of 518 million H shares to Shanghai Juneyao Airlines Hong Kong Co., Ltd. on August 29, 2019, raising a total of RMB2,002 million in net funds. The Company also completed the non-public issuance of 1,394 million A shares to four specific investors, including Shanghai Juneyao Airlines Co., Ltd. on August 30, 2019, raising a total of RMB7,440 million in net funds.

Reserves (Tables)

Reserves (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Reserves	Share Capital Hedging Statutory Other Retained Total RMB million RMB million RMB million RMB million RMB million RMB million RMB million At January 1, 2018 29,540 (778 ) 91 540 (2,038 ) 14,566 41,921 Unrealized gains on cash flow hedges (Note 24) — — 43 — — — 43 Fair value movements in equity investments designated at fair value through other comprehensive income — — — — (248 ) — (248 ) Fair value changes of equity investments designated at fair value through other comprehensive income held by an associate — — — — (24 ) — (24 ) Actuarial gains on post-retirement benefit obligations — — — — (111 ) — (111 ) Transfer from retained profits — — — 30 — (30 ) — Profit for the year — — — — — 2,698 2,698 Final 2017 dividend — — — — — (738 ) (738 ) At December 31, 2018 29,540 (778 ) 134 570 (2,421 ) 16,496 43,541 Effect of adoption of IFRS 16 — — — — — (1,595 ) (1,595 ) At January 1, 2019 (restated) 29,540 (778 ) 134 570 (2,421 ) 14,901 41,946 Unrealized gains on cash flow hedges (Note 24) — — (110 ) — — — (110 ) Fair value movements in equity investments designated at fair value through other comprehensive income — — — — 13 — 13 Fair value changes of equity investments designated at fair value through other comprehensive income held by an associate — — — — 7 — 7 Actuarial gains on post-retirement benefit obligations — — — — 39 — 39 Transfer from retained profits — — — 212 — (212 ) — Profit for the year — — — — — 3,192 3,192 Final 2018 dividend — — — — — — — Issue of shares 7,530 — — — — — 7,530 Others — 11 — — — 1 12 At December 31, 2019 37,070 (767 ) 24 782 (2,362 ) 17,882 52,629 Notes: (a) Capital reserve Capital reserve mainly represents the difference between the fair value of the net assets injected and the nominal amount of the Company’s share capital issued in respect of the group restructuring carried out in June 1996 for the purpose of the Company’s listing. (b) Statutory reserve According to the PRC Company Law, the Company is required to transfer a portion of the profits to the statutory reserve. The transfer to this reserve must be made before distribution of dividends to shareholders and when there are retained profits at the end of the financial year.

Partly-owned Subsidiaries wit_2

Partly-owned Subsidiaries with Material Non-controlling Interests (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Subsidiaries that have Material Non-controlling Interests	Details of the Group’s subsidiaries that have material non-controlling 2019 2018 Percentage of equity interest held by non-controlling CEA Jiangsu 37.44 % 37.44 % CEA Yunnan 9.64 % 9.64 % CEA Wuhan 40.00 % 40.00 % 2019 RMB million 2018 RMB million Profit for the year allocated to non-controlling CEA Jiangsu 115 114 CEA Yunnan 50 33 CEA Wuhan 128 88 Dividends paid to non-controlling 37 56 Dividends paid to non-controlling 45 — Accumulated balances of non-controlling CEA Jiangsu 1,445 1,471 CEA Yunnan 704 674 CEA Wuhan 1,511 1,483
Summary of Financial Information of Subsidiaries that have Material Non-controlling Interests	The following tables illustrate the summarized financial information of the above subsidiaries. The amounts disclosed are before any inter-company eliminations: CEA Jiangsu RMB million CEA Yunnan RMB million CEA Wuhan RMB million 2019 Revenue 9,774 11,634 4,743 Total expenses 9,466 11,110 4,424 Profit for the year 308 524 319 Total comprehensive income for the year 309 524 328 Current assets 1,116 575 369 Non-current 12,620 19,210 7,917 Current liabilities 2,486 3,623 1,611 Non-current 7,390 8,859 2,897 Net cash flows from operating activities 1,930 2,457 885 Net cash flows used in investing activities (16 ) (425 ) (222 ) Net cash flows used in financing activities (1,874 ) (2,031 ) (666 ) Effect of foreign exchange rate changes, net — — — Net increase/ (decrease) in cash and cash equivalents 40 1 (3 ) CEA Jiangsu RMB million CEA Yunnan RMB million CEA Wuhan RMB million 2018 Revenue 9,313 10,523 4,559 Total expenses 9,008 10,183 4,340 Profit for the year 305 340 219 Total comprehensive income for the year 297 340 217 Current assets 1,338 379 237 Non-current 9,460 16,018 7,048 Current liabilities 2,116 3,213 1,634 Non-current 4,753 6,196 1,944 Net cash flows from operating activities 1,036 3,686 775 Net cash flows used in investing activities (37 ) (592 ) (534 ) Net cash flows used in financing activities (991 ) (3,099 ) (243 ) Effect of foreign exchange rate changes, net — — — Net increase/ (decrease) in cash and cash equivalents 8 (5 ) (2 )

Disposal of a Subsidiary (Table

Disposal of a Subsidiary (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Disposal of a Subsidiary	The details of the assets and liabilities disposed of relating to the disposal of a subsidiary are summarized as follows: At date of disposal Net assets disposed of: Property, plant and equipment 26 Investments in associates 9 Right-of-use assets 10 Other non-current assets 3 Prepayments and other receivables 278 Restricted bank deposits and short-term bank deposits 251 Trade and notes receivables 115 Cash and cash equivalents 90 Trade and bills payables (79 ) Contract liabilities (284 ) Other payables and accruals (378 ) Lease liabilities (10 ) Net assets 31 Gain on disposal of a subsidiary 64 Satisfied by: Investment in an associate 95
Summary of Analysis of Net Inflow of Cash and Cash Equivalents in Respect of Disposal of a Subsidiary	An analysis of the net outflow of cash and cash equivalents in respect of the disposal of a subsidiary is as follows: 2019 Cash consideration — Cash and bank balances disposed of 90 Net outflow of cash and cash equivalents in respect of the disposal of a subsidiary (90 )

Notes to the Consolidated Sta_2

Notes to the Consolidated Statement of Cash Flows (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Notes to Statement of Consolidated Cash Flows	(a) Cash generated from operations 2019 RMB million 2018 RMB million 2017 RMB million Profit before income tax 4,299 3,856 8,610 Adjustments for: Depreciation of property, plant and equipment 9,078 14,616 13,367 Depreciation of right-of-use 12,298 — — Amortization of intangible assets 143 160 143 Depreciation of investment properties 25 26 12 Amortization of lease prepayments — 43 45 Amortization of other non-current 536 468 402 Gains on disposal of property, plant and equipment (22 ) (267 ) (13 ) Gain on disposal of prepayments for land use rights — (210 ) (5 ) Gain on disposal of investment in a subsidiary (64 ) — (1,754 ) Gain on disposal of investment in an associate — (5 ) (12 ) Gain on disposal of available-for-sale — — (4 ) Dividend income from equity investments at fair value through other comprehensive income (19 ) (23 ) — Dividend income from available-for-sale — — (33 ) Dividend income from a financial asset at fair value through profit or loss (3 ) (6 ) — Share of results of associates (265 ) (170 ) (202 ) Share of results of joint ventures (17 ) (34 ) (49 ) Net foreign exchange loss/(gain) 890 1,983 (2,378 ) (Gain)/loss on fair value changes of financial asset at fair value through profit or loss (25 ) 27 — (Gain)/loss on fair value changes of derivative financial instruments — (311 ) 311 Impairment charges 4 318 494 Impairment losses on financial assets, net 16 27 (3 ) Interest income — (110 ) (111 ) Interest expense 5,169 3,727 3,184 Operating profit before working capital changes 32,043 24,115 22,004 Changes in working capital Flight equipment spare parts (457 ) (66 ) (109 ) Trade and notes receivables (275 ) 708 (500 ) Prepayments and other receivables (2,336 ) (2,056 ) (753 ) Sales in advance of carriage — — (569 ) Contract liabilities 1,281 1,051 — Restricted bank deposits and short-term bank deposits 9 35 (8 ) Trade and bills payables (163 ) 856 1,725 Other payables and accruals 1,459 36 340 Staff housing allowances — (36 ) 62 Other long-term liabilities (1,916 ) (525 ) (728 ) Post-retirement benefit obligations (125 ) 42 (217 ) Provision for lease return costs for aircraft and engines 617 (113 ) (139 ) Cash generated from operations 30,137 24,047 21,108
Summary of Major Non-cash Transactions	(b) Major non-cash 2019 RMB million 2018 RMB million 2017 RMB million Additions to right-of-use assets and lease liabilities 24,434 — — Finance lease obligations incurred for acquisition of aircraft — 7,945 6,865 * Disposal of a subsidiary of the Company for the current year also comprised a major non-cash transaction as disclosed in Note 45.
Summary of Changes in Liabilities Arising from Financing Activities	(c) Changes in liabilities arising from financing activities Bank and RMB million Obligations under RMB million At December 31, 2018 55,126 77,427 Effect of adoption of IFRS 16 — 31,879 At January 1, 2019 (restated) 55,126 109,306 Changes from financing cash flows (3,427 ) (23,895 ) Foreign exchange movement 139 851 Disposal of a subsidiary — (10 ) New leases — 24,023 At December 31, 2019 51,838 110,275 At January 1, 2018 63,801 66,868 Changes from financing cash flows (9,076 ) (9,629 ) Foreign exchange movement 401 1,419 New finance leases — 18,769 At December 31, 2018 55,126 77,427
Disclosure Of Detailed Information About Cash Flow Information For Leases Explanatory	(d) Total cash outflow for leases The total cash outflow for leases included in the statement of cash flows is as follows: 2019 RMB million Within operating activities (631 ) Within investing activities (1,449 ) Within financing activities (27,789 )

Commitments (Tables)

Commitments (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Capital Commitments	(a) The Group had the following capital commitments at the end of the reporting period: 2019 RMB million 2018 RMB million Contracted for: – Aircraft, engines and flight equipment ( n 47,822 70,998 – Other property, plant and equipment 4,917 6,481 – Investments 860 590 53,599 78,069
Summary of Aged Analysis of Contracted Expenditures for Aircraft, Engines and Flight Equipment	(i) Contracted expenditures for the above aircraft, engines and flight equipment, including deposits prior to delivery, subject to future inflation increase built into the contracts, were expected to be paid as follows: 2019 RMB million 2018 RMB million Within one year 18,388 29,187 In the second year 12,442 24,735 In the third year 11,956 11,809 In the fourth year 3,892 4,674 Over four years 1,144 593 47,822 70,998
Summary of Future Minimum Lease Rentals Under Operating Leases	As at December 31, 2018, the Group had commitments under operating leases to pay future minimum lease rentals as follows: 2018 RMB million Aircraft, engines and flight equipment Within one year 4,990 In the second year 5,371 In the third to fifth years, inclusive 12,041 After the fifth year 14,169 36,571 Land and buildings Within one year 398 In the second year 175 In the third to fifth years, inclusive 59 After the fifth year 75 707 37,278

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Nature of Related Parties	(a) Nature of related parties that do not control or controlled by the Group: Name of related party Relationship with the Group Eastern Air Group Finance Co., Ltd. (“Eastern Air Finance Company”) Associate of the Company Eastern Aviation Import & Export Co., Ltd. and its subsidiaries (“Eastern Import & Export”) Associate of the Company Shanghai Pratt & Whitney Aircraft Engine Maintenance Co., Ltd. (“Shanghai P&W”) Associate of the Company Eastern Aviation Advertising Service Co., Ltd. and its subsidiaries (“Eastern Advertising”) Associate of the Company Shanghai Collins Aviation Maintenance Service Co., Ltd. (“Collins Aviation”) Associate of the Company Shanghai Airlines Tours International (Group) Co., Ltd. and its subsidiaries (“Shanghai Airlines Tours”) Associate of the Company Beijing Xinghang Aviation Property Co., Ltd. (“Beijing Aviation Property”) Associate of the Company CAE Melbourne Flight Training Pty Limited (“CAE Melbourne”) Joint venture of the Company Shanghai Eastern Union Aviation Wheels & Brakes Maintenance Services Overhaul Engineering Co., Ltd. (“Wheels & Brakes”) Joint venture of the Company Shanghai Technologies Aerospace Co., Ltd. (“Technologies Aerospace”) Joint venture of the Company Eastern China Kaiya System Integration Co., Ltd. (“China Kaiya”) Joint venture of the Company Shanghai Hute Aviation Technology Co., Ltd. (“Shanghai Hute”) Joint venture of the Company CEA Development Co., Limited and its subsidiaries (“CEA Development”) Controlled by the same parent company China Eastern Air Catering Investment Co., Limited and its subsidiaries (“Eastern Air Catering”) Controlled by the same parent company CES International Financial Leasing Corporation Limited and its subsidiaries (“CES Lease Company”) Controlled by the same parent company Shanghai Eastern Airlines Investment Co., Ltd. and its subsidiaries (“Eastern Investment”) Controlled by the same parent company Eastern Air Logistics Co., Ltd. and its subsidiaries (“Eastern Logistics”) Controlled by the same parent company Eastern Airlines Industry Investment Company Limited (“Eastern Airlines Industry Investment”) Controlled by the same parent company CES Finance Holding Co., Limited (“CES Finance”) Controlled by the same parent company and a substantial shareholder of the Company CES Global Holdings (Hong Kong) Limited (“CES Global”) Controlled by the same parent company and a substantial shareholder of the Company Hong Kong Securities Clearing Company Ltd. (“HKSCC”) A substantial shareholder of the Company TravelSky Technology Limited (“TravelSky”) A director and vice president of the Company is a director of Travelsky China Aviation Supplies Holding Company and its subsidiaries (“CASC”) A director and vice president of the Company is a director of CASC Air France-KLM A director and vice president of the Company is a director of AFK Juneyao Airlines Co., Ltd and its subsidiaries (“Juneyao Air”) A director and vice president of the Company is a director of Juneyao Air
Summary of Related Party Transactions	(b) Related party transactions Pricing policy Nature of transaction Related party and decision 2019 2018 Purchase of goods and services Payments on food and beverages* Eastern Air Catering (i) 1,471 1,317 CEA Development (i) — 78 Eastern Import & Export (i) 56 60 Handling charges for purchase of aircraft, flight equipment, flight equipment spare parts, other property, plant and flight equipment and repairs for aircraft and engines* Eastern Import & Export (i) 142 165 Repairs and maintenance expense Shanghai P&W (i) 1,762 2,394 for aircraft and engines Technologies Aerospace (i) 221 344 Wheels & Brakes (i) 144 129 Shanghai Hute (i) 88 74 XIESA (i) 2 — Payments on cabin cleaning services Eastern Advertising (i) 22 20 Advertising expense* Eastern Advertising (i) 29 19 Payments on system services China Kaiya (i) 16 21 Equipment maintenance fee* Collins Aviation (i) 45 60 CEA Development (i) 119 71 Automobile maintenance service, aircraft maintenance, providing transportation automobile and other products* CEA Development (i) 13 13 Property management and green maintenance expenses* CEA Development (i) 205 102 Payments on hotel accommodation service* CEA Development (i) 134 127 Shanghai Airlines Tours (i) 23 — Payments on construction and management agent Eastern Investment (i) 14 18 Payments on logistics services Eastern Import & Export (i) 49 142 Eastern Logistics (i) 53 — Civil aviation information network services** TravelSky (i) 753 646 Flight equipment spare parts maintenance** CASC (i) 143 189 Flight training fee CAE Melbourne (i) 70 75 Payments on aviation transportation cooperation and support services** AFK (i) 537 425 Payments on aviation transportation cooperation services Juneyao Air (i) 2 — Flight equipment spare parts maintenance and support services** AFK (i) 19 2 Bellyhold space management* Eastern Logistics (i) — 32 Bellyhold space operation cost* Eastern Logistics (i) 310 246 Transfer of pilots Eastern Logistics (i) 11 24 Cargo terminal business support services* Eastern Logistics (i) 481 348 Bellyhold container management Eastern Logistics (i) 13 11 Nature of transaction Related party Pricing policy 2019 RMB million 2018 RMB million Provision of services Contractual revenue from bellyhold space* Eastern Logistics (i) 3,826 2,795 Freight logistics support services* Eastern Logistics (i) 135 126 Software system and support services Eastern Logistics (i) 4 42 Transfer of freight depots and equipment Eastern Logistics (i) — 28 Media royalty fee Eastern Advertising (i) 15 14 Aviation transportation cooperation and support services** AFK (i) 593 728 Aviation transportation cooperation services Juneyao Air (i) 11 — Flight equipment spare parts maintenance and support services Juneyao Air (i) 41 — Lease p Lease payments for land and buildings under short-term leases* (2018: Land and building rental) CEA Holding (ii) 40 33 Eastern Investment (ii) 83 — Settlements of lease liabilities on aircraft and engines* (2018: Payments on operating leases and finance leases) CES Lease Company (ii) 5,779 3,984 Interest expense Interest expense on loans CEA Holding (iii) 27 13 Eastern Air Finance Company (iii) 5 — Interest income Interest income on deposits Eastern Air Finance Company (iii) 15 26 (i) The Group’s pricing policies on goods and services purchased from and provided to related parties are mutually agreed between contract parties. (ii) The Group’s pricing policies on related party lease payments are mutually agreed between contract parties. (iii) The Group’s pricing policies on related party interest rates are mutually agreed based on benchmark interest rates. * These related party transactions also constitute connected transactions or continuing connected transactions as defined in Chapter 14A of the Rules Governing the Listing of Securities on the Stock Exchange (the “Listing Rules”). ** These related party transactions constitute continuing connected transactions pursuant to the Rules Governing the Listing of Stocks on the Shanghai Stock Exchange.
Summary of Balances with Related Parties	(c) Balances with related parties (i) Amounts due from related parties 2019 RMB million 2018 RMB million Trade and notes receivables Eastern Logistics 295 — CASC 23 — Juneyao Air 10 — Eastern Air Catering 1 1 Others 5 — 334 1 2019 RMB million 2018 RMB million Prepayments and other receivables Eastern Import & Export 272 133 Technologies Aerospace 7 31 Eastern Air Catering 6 16 Eastern Advertising 28 28 CEA Development 7 7 CEA Holding — 25 CASC 13 12 CES Global — 3 TravelSky 7 — Juneyao Air 10 — Eastern Air Finance Company 405 — Others 21 23 776 278 All the amounts due from related parties are trade in nature, interest-free and payable within normal credit terms. (ii) Amounts due to related parties 2019 RMB million 2018 RMB million Trade and bills payables Eastern Import & Export 421 229 Eastern Logistics — 167 Eastern Air Catering 390 272 Technologies Aerospace 104 141 CEA Development 76 15 Shanghai P&W 465 — Collins Aviation 7 1 CEA Holding 18 13 CASC 17 18 Shanghai Hute 13 15 TravelSky 22 333 Wheels & Brakes 17 14 Shanghai Airlines Tours 3 — Beijing Aviation Property 101 — Others 7 1 1,661 1,219 2019 2018 Other payables and accruals Eastern Import & Export 5 129 Shanghai P&W — 315 Eastern Air Catering 2 1 CEA Holding 111 104 Eastern Advertising — 3 China Kaiya — 2 CEA Development 1 49 CAE Melbourne — 311 Eastern Investment 86 10 CES Lease Company 166 164 CASC 2 2 XIESA 2 — Others 8 3 383 1,093 2019 RMB million 2018 RMB million Contract liabilities Eastern Logistics — 6 2019 RMB million 2018 RMB million Lease liabilities (2018: Obligations under finance leases) CES Lease Company 42,848 30,190 Except for the amounts due to CES Lease Company, which are related to the aircraft under leases, all other amounts due to related parties are interest-free and payable within normal credit terms given by trade creditors. (iii) Short-term deposits, loan and borrowings with related parties Average interest rate 2019 2018 2019 2018 RMB million RMB million Short-term deposits (included in cash and cash equivalents) Eastern Air Finance Company 0.35 % 0.35 % 1,122 282 Long-term borrowings (included in borrowings) CEA Holding 3.86 % 3.89 % 828 528 Loan to a joint venture CAE Melbourne 3.74 % 3.74 % 15 20
Summary of Key Management Compensation	The compensation paid or payable to key management for employee services mainly comprising salaries and other short-term employee benefits was analysed as follows: 2019 RMB million 2018 RMB million Directors and supervisors 1 2 Senior management 8 8 9 10

Financial Instruments by Cate_2

Financial Instruments by Category (Tables)	12 Months Ended
	Dec. 31, 2019
Text block [abstract]
Summary of Financial Instruments by Category	The carrying amounts of each of the categories of financial instruments as at the end of the reporting period are as follows: 2019 Financial assets at fair value through profit or loss RMB million Financial assets at fair value through other comprehensive income RMB million Financial assets at amortized RMB million Derivatives designated as hedging instruments RMB million Total RMB million Financial assets Equity investments designated at fair value through other comprehensive income — 1,274 — — 1,274 Derivative financial instruments — — — 70 70 Financial assets included in other non-current — — 180 — 180 Trade and notes receivables — — 1,717 — 1,717 Financial asset at fair value through profit or loss 121 — — — 121 Financial assets included in prepayments and other receivables — — 11,711 — 11,711 Restricted bank deposits and short-term bank deposits — — 6 — 6 Cash and cash equivalents — — 1,350 — 1,350 Total 121 1,274 14,964 70 16,429 Financial liabilities at amortized cost RMB million Derivatives designated as hedging instruments RMB million Total RMB million Financial liabilities Trade and bills payables 3,877 — 3,877 Financial liabilities included in other payables and accruals 22,602 — 22,602 Lease liabilities 110,275 — 110,275 Borrowings 51,837 — 51,837 Derivative financial instruments — 23 23 Total 188,591 23 188,614 2018 Financial assets at fair value through profit or loss RMB million Financial assets at fair value through other comprehensive income RMB million Financial assets at amortized RMB million Derivatives designated as hedging instruments RMB million Total RMB million Financial assets Equity investments designated at fair value through other comprehensive income — 1,247 — — 1,247 Derivative financial instruments — — — 223 223 Financial assets included in other non-current — — 190 — 190 Trade and notes receivables — — 1,436 — 1,436 Financial asset at fair value through profit or loss 96 — — 96 Financial assets included in prepayments and other receivables — — 2,825 — 2,825 Restricted bank deposits and short-term bank deposits — — 16 — 16 Cash and cash equivalents — — 646 — 646 Total 96 1,247 5,113 223 6,679 Financial liabilities at amortized cost RMB million Derivatives designated as hedging instruments RMB million Total RMB million Financial liabilities Trade and bills payables 4,040 — 4,040 Financial liabilities included in other payables and accruals 21,143 — 21,143 Obligations under finance leases 77,427 — 77,427 Borrowings 55,126 — 55,126 Derivative financial instruments — 29 29 Total 157,736 29 157,765

Fair Value and Fair Value Hie_2

Fair Value and Fair Value Hierarchy of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2019
Statement [LineItems]
Summary of Financial Instruments Not Measured at Fair Value	The carrying amounts and fair values of the Group’s financial instruments, other than those with carrying amounts that reasonably approximate to fair values, were as follows: December 31, 2019 December 31, 2018 Carrying amounts RMB million Fair values RMB million Carrying amounts RMB million Fair values RMB million Financial assets Equity investments designated at fair value through other comprehensive income 1,274 1,274 1,247 1,247 Financial asset at fair value through profit or loss 121 121 96 96 Derivative financial assets 70 70 223 223 Deposits relating to aircraft held under leases included in other non-current 156 148 177 154 Total 1,621 1,613 1,743 1,720 Financial liabilities Derivative financial liabilities 23 23 29 29 Long-term borrowings 26,604 23,754 25,867 25,875 Lease liabilities 94,685 89,491 — — Obligations under finance leases — — 68,063 64,521 Total 121,312 113,268 93,959 90,425
Summary of Significant Unobservable Inputs to the Valuation of Financial Instruments Together with a Quantitative Sensitivity Analysis	Set out below is a summary of significant unobservable inputs to the valuation of financial instruments together with a quantitative sensitivity analysis as at December 31, 2019 and 2018: Valuation technique Significant unobservable input Range Sensitivity of fair value to the input Unlisted equity investments Valuation multiples Discount for lack of marketability 2019: 20% to 35% (2018: 19% to 41%) 1% (2018: 1%) increase/decrease in multiple would result in increase/ decrease in fair value by RMB11 million (2018: RMB11 million)
Disclosure of Fair Value of Financial Instruments	The following tables illustrate the fair value measurement hierarchy of the Group’s financial instruments: Assets and liabilities measured at fair value: As at December 31, 2019 Fair value measurement using Quoted prices in active markets (Level 1) RMB million Significant observable inputs (Level 2) RMB million Significant unobservable inputs (Level 3) RMB million Total RMB million Assets Equity investments designated at fair value through other comprehensive income 496 — 778 1,274 Derivative financial assets -Interest rate swaps — 70 — 70 Financial asset at fair value through profit or loss 121 — — 121 Total 617 70 778 1,465 Liabilities Derivative financial liabilities -Forward currency contracts — 23 — 23 Total — 23 — 23 As at December 31, 2018 Fair value measurement using Quoted prices Significant Significant (Level 3) Total RMB million RMB million RMB million RMB million Assets Equity investments designated at fair value through other comprehensive income 510 — 737 1,247 Derivative financial assets -Interest rate swaps — 223 — 223 Financial asset at fair value through profit or loss 96 — — 96 Total 606 223 737 1,566 Liabilities Derivative financial liabilities -Forward currency contracts — 29 — 29 Total — 29 — 29
At fair value [member]
Statement [LineItems]
Disclosure of Fair Value of Financial Instruments	Assets and liabilities for which fair values are disclosed: As at December 31, 2019 Fair value measurement using Quoted prices Significant Significant (Level 3) Total RMB million RMB million RMB million RMB million Assets Deposits relating to aircraft held under leases included in other non-current — 148 — 148 Liabilities Long-term borrowings 2,897 20,857 — 23,754 Lease liabilities — 89,491 — 89,491 2,897 110,496 — 113,393 As at December 31, 2018 Fair value measurement using Quoted prices Significant Significant (Level 3) Total RMB million RMB million RMB million RMB million Assets Deposits relating to aircraft held under leases included in other non-current — 154 — 154 Liabilities Long-term borrowings 2,861 23,014 — 25,875 Obligations under finance leases — 64,521 — 64,521 2,861 87,535 — 90,396

Financial Risk Management Obj_2

Financial Risk Management Objectives and Policies (Tables)	12 Months Ended
	Dec. 31, 2019
Statement [Line Items]
Summary of Contractual Undiscounted Cash Flows of Financial Liabilities	The table below analyses the Group’s financial liabilities that will be settled into relevant maturity groupings based on the remaining period at the reporting date to the contractual maturity date. The amounts disclosed in the table are the contractual undiscounted cash flows. Less than 1 year 1 to 2 years 2 to 5 years Over 5 years Total RMB million RMB million RMB million RMB million RMB million At December 31, 2019 Borrowings 26,422 8,796 15,882 3,872 54,972 Lease liabilities 19,870 17,691 44,919 47,431 129,911 Trade, bills and other payables 26,479 — — — 26,479 Total 72,771 26,487 60,801 51,303 211,362 Less than 1 year 1 to 2 years 2 to 5 years Over 5 years Total RMB million RMB million RMB million RMB million RMB million At December 31, 2018 Borrowings 30,813 8,074 15,500 4,431 58,818 Obligations under finance leases 11,974 12,014 30,018 36,974 90,980 Trade, bills and other payables 19,747 — — — 19,747 Total 62,534 20,088 45,518 41,405 169,545
Summary of Market Equity Indices	The market equity indices for the following stock exchanges, at the close of business of the nearest trading day in the year to the end of the reporting period, and their respective highest and lowest points during the year were as follows: December 31, High/Low 2019 December 31, High/Low 2018 Hong Kong – Hang Seng Index 28,190 30,157/25,064 25,846 33,154/24,586 Shanghai – A Share Index 3,196 3,426/2,580 2,611 3,728/2,600
Summary of Equity Investments at Fair Value Through Other Comprehensive Income, Impact Deemed to be on Fair Value Reserve	The following table demonstrates the sensitivity to every 10% change in the fair values of the equity investments, with all other variables held constant, based on their carrying amounts at the end of the reporting period. For the purpose of this analysis, for the equity investments at fair value through other comprehensive income, the impact is deemed to be on the fair value reserve as at December 31, 2019. Carrying amount RMB million Increase/ (decrease) RMB million Increase/(decrease) RMB million 2019 Investments listed in: Hong Kong – Equity investment designated at fair value through other comprehensive income 496 — 37/(37) Shanghai – Financial asset at fair value through profit or loss 121 9/(9) — Unlisted investments at fair value: – Equity investment designated at fair value through other comprehensive income 778 — 58/(58) 2018 Investments listed in: Hong Kong – Equity investment designated at fair value through other comprehensive income 510 — 38/(38) Shanghai – Financial asset at fair value through profit or loss 96 7/(7) — Unlisted investments at fair value: – Equity investment designated at fair value through other comprehensive income 737 — 55/(55)
Summary of Debt Ratio	The Group monitors capital on the basis of the debt ratio, which is calculated as total liabilities divided by total assets. The debt ratios as at the end of the reporting periods were as follows: December 31, RMB million January 1, RMB million December 31, RMB million Total liabilities 212,539 211,750 177,416 Total assets 285,185 271,593 239,017 Debt ratio 75 % 79 % 74 %
Foreign currency risk.
Statement [Line Items]
Summary of Risk	The following tables detail the Group’s exposure to major currency risk at the reporting dates: 2019 USD EUR SGD KRW RMB million RMB million RMB million RMB million Trade receivables 28 47 5 10 Cash and cash equivalents 635 63 5 11 Other receivables 2,065 3 1 130 Other non-current 180 — — — Trade and other payables (105 ) (3 ) — — Lease liabilities (45,674 ) — (397 ) — Borrowings (870 ) (3,073 ) (2,587 ) (1,810 ) 2018 USD EUR SGD KRW RMB million RMB million RMB million RMB million Trade receivables 75 55 5 25 Cash and cash equivalents 124 47 10 — Other receivables — 2 1 131 Other non-current 190 — — — Trade and other payables (144 ) (2 ) (5 ) — Obligations under finance leases (25,376 ) — (514 ) — Borrowings (3,139 ) (3,566 ) (2,503 ) (1,066 )
Summary of Sensitivity Analysis of Risk	The following tables indicate the approximate change in the Group’s consolidated statement of profit or loss and other comprehensive income in response to a 1% appreciation or depreciation of the RMB against the following major currencies at the reporting dates: 2019 2018 Effect on Effect on other Effect on Effect on other RMB million RMB million RMB million RMB million If RMB (weakens)/strengthens against USD (328)/328 41/(41) (178)/178 34/(34) If RMB (weakens)/strengthens against EUR (22)/22 — (26)/26 — If RMB (weakens)/strengthens against SGD (22)/22 — (23)/23 — If RMB (weakens)/strengthens against KRW (12)/12 — (7)/7 —
Interest Rate Risk [Member]
Statement [Line Items]
Summary of Risk	The following tables detail the interest rate profiles of the Group’s interest-bearing financial instruments at the reporting dates: 2019 2018 RMB million RMB million Floating rate instruments Cash and cash equivalents 1,350 646 Restricted bank deposits and short-term bank deposits 6 16 Borrowings (3,943 ) (9,705 ) Lease liabilities/Obligations under finance leases (49,851 ) (50,761 ) Interest rate swaps at notional amount 6,194 7,566 2019 2018 RMB million RMB million Fixed rate instruments Borrowings (47,929 ) (45,477 ) Lease liabilities/Obligations under finance leases (60,423 ) (26,666 )
Summary of Sensitivity Analysis of Risk	The following table indicates the approximate change in the Group’s profit or loss and other comprehensive income, taking the interest rate swap into consideration, if interest rate had been 25 basis points higher with all other variables held constant: 2019 2018 Effect on Effect on other Effect on Effect on other RMB million RMB million RMB million RMB million Floating rate instruments (98 ) 12 (112 ) 14

Corporate and Group Informati_3

Corporate and Group Information - Summary of Principal Subsidiaries (Detail) ¥ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)	Dec. 31, 2019HKD ($)	Dec. 31, 2018CNY (¥)
Disclosure of subsidiaries [Line Items]
Issued ordinary/registered share capital	¥ 16,379		¥ 14,467
China Eastern Airlines Jiangsu Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Apr. 7, 1993
Issued ordinary/registered share capital	¥ 2,000
Principal activities	Provision of airline services
Place of businesss of subsidiary	Mainland China
China Eastern Airlines Jiangsu Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	62.56%
China Eastern Airlines Wuhan Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Aug. 16, 2002
Issued ordinary/registered share capital	¥ 1,750
Principal activities	Provision of airline services
Place of businesss of subsidiary	Mainland China
China Eastern Airlines Wuhan Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	60.00%
Shanghai Eastern Flight Training Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Dec. 18, 1995
Issued ordinary/registered share capital	¥ 694
Principal activities	Provision of flight training services
Place of businesss of subsidiary	Mainland China
Shanghai Eastern Flight Training Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	100.00%
Shanghai Airlines Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Mar. 16, 2010
Issued ordinary/registered share capital	¥ 500
Principal activities	Provision of airline services
Place of businesss of subsidiary	Mainland China
Shanghai Airlines Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	100.00%
China Eastern Airlines Technology Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Nov. 19, 2014
Issued ordinary/registered share capital	¥ 4,300
Principal activities	Provision of airlinemaintenance services
Place of businesss of subsidiary	Mainland China
China Eastern Airlines Technology Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	100.00%
One two three Airlines Co., Ltd. ("OTT Airlines") (Originally named Eastern Business Airlines Co., Ltd.) [Member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Sep. 27, 2008
Issued ordinary/registered share capital	¥ 1,500
Principal activities	Provision of business aviation services
Place of businesss of subsidiary	Mainland China
One two three Airlines Co., Ltd. ("OTT Airlines") (Originally named Eastern Business Airlines Co., Ltd.) [Member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	100.00%
China Eastern Airlines Yunnan Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Aug. 2, 2011
Issued ordinary/registered share capital	¥ 3,662
Principal activities	Provision of airline services
Place of businesss of subsidiary	Mainland China
China Eastern Airlines Yunnan Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	90.36%
Eastern Air Overseas (Hong Kong) Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	Hong Kong
Date of incorporation	Jun. 10, 2011
Issued ordinary/registered share capital | $		$ 280
Principal activities	Provision of import and export, investment, leasing and consultation services
Eastern Air Overseas (Hong Kong) Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	100.00%
China United Airlines Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Sep. 21, 1984
Issued ordinary/registered share capital	¥ 1,320
Principal activities	Provision of airline services
Place of businesss of subsidiary	Mainland China
China United Airlines Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	100.00%
Eastern Airlines Hotel Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Mar. 18, 1998
Issued ordinary/registered share capital	¥ 70
Principal activities	Provision of hotel services primarily to crew
Place of businesss of subsidiary	Mainland China
Eastern Airlines Hotel Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	100.00%
China Eastern Airlines Application Development Center Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Nov. 21, 2011
Issued ordinary/registered share capital	¥ 498
Principal activities	Provision of research and development of technology and products in the field of aviation
Place of businesss of subsidiary	Mainland China
China Eastern Airlines Application Development Center Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	100.00%
China Eastern Airlines E-Commerce Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Place of incorporation/registration and address	PRC
Date of incorporation	Dec. 1, 2014
Issued ordinary/registered share capital	¥ 50
Principal activities	E-commerce platform and ticket agent
Place of businesss of subsidiary	Mainland China
China Eastern Airlines E-Commerce Co., Ltd. [member] | Direct [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity attributable to the Company	100.00%

Basis of Preparation, Changes i

Basis of Preparation, Changes in Accounting Policies and Disclosures, Issued but not yet Effective International Financial Reporting Standards, and Summary of Significant Accounting Policies - Additional Information (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of initial application of standards or interpretations [abstract]
Amount current liabilities exceeded current assets	¥ (58,620)	¥ (57,132)
Unutilised banking facilities	¥ 50,060

Changes in Accounting Policie_3

Changes in Accounting Policies and Disclosures - Additional Information (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Jan. 01, 2019
Statement of financial position [line items]
Right-of-use assets	¥ 128,704	¥ 32,001
Finance lease right of use assets reclassified		¥ 94,416

Changes in Accounting Policie_4

Changes in Accounting Policies and Disclosures - Summary of impacts arising from the adoption of IFRS 16 (Details) ¥ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)
Assets
Increase in right-of-use assets	¥ 128,312
Decrease in property, plant and equipment	(94,416)
Decrease in prepayments for land use rights	(1,387)
Decrease in prepayments and other receivables	(403)
Increase in deferred tax assets	470
Increase in total assets	32,576
Liabilities
Increase in lease liabilities	109,306
Increase in provision for lease return costs for aircraft and engines	3,654
Decrease in obligations under finance leases	(77,427)
Decrease in other long-term liabilities	(1,115)
Decrease in deferred tax liabilities	(84)
Increase in total liabilities	34,334
Decrease in retained profits	(1,595)
Decrease in non-controlling interests	¥ (163)

Changes in Accounting Policie_5

Changes in Accounting Policies and Disclosures - Summary of reconcilation between lease liabilities and operating lease commitments (Details) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Disclosure Of Reconcilation Between Lease Liabilities And Operating Lease Commitments [Line Items]
Operating lease commitments as at December 31, 2018			¥ 37,278
Less: Commitments relating to short-term leases and those leases with a remaining lease term ended on or before December 31, 2019	¥ 83	¥ (206)
Commitments relating to leases of low-value assets		(1)
Operating lease commitment		¥ 37,071
Weighted average incremental borrowing rate as at January 1, 2019		4.09%
Discounted operating lease commitments as at January 1, 2019		¥ 31,879
Add: Obligations under finance leases recognized as at December 31, 2018			9,364
Finance Lease [Member]
Disclosure Of Reconcilation Between Lease Liabilities And Operating Lease Commitments [Line Items]
Add: Obligations under finance leases recognized as at December 31, 2018			77,427
Lease liabilities as at January 1, 2019	¥ 110,275	¥ 109,306	¥ 77,427

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Summary of Property, Plant and Equipment Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2019
Other flight equipment, including rotables [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Estimated useful lives of property, plant and equipment	10 years
Bottom of range [member] | Owned aircraft and engines [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Estimated useful lives of property, plant and equipment	15 years
Bottom of range [member] | Buildings [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Estimated useful lives of property, plant and equipment	8 years
Bottom of range [member] | Other property, plant and equipment [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Estimated useful lives of property, plant and equipment	3 years
Top of range [member] | Owned aircraft and engines [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Estimated useful lives of property, plant and equipment	20 years
Top of range [member] | Buildings [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Estimated useful lives of property, plant and equipment	45 years
Top of range [member] | Other property, plant and equipment [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Estimated useful lives of property, plant and equipment	20 years

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Summary of Investment Property Estimated Useful Lives (Detail) - Buildings [member]	12 Months Ended
	Dec. 31, 2019
Bottom of range [member]
Disclosure of detailed information about investment property [Line Items]
Estimated useful lives of investment properties	30 years
Top of range [member]
Disclosure of detailed information about investment property [Line Items]
Estimated useful lives of investment properties	35 years

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Summary of estimated useful lives of the assets under right of use assets (Detail) - Right-of-use assets [member]	12 Months Ended
	Dec. 31, 2019
Aircraft and engines under leases [member] | Bottom of range [member]
Disclosure Of Estimated Useful Lives Of The Assets Under Right Of Use Assets [Line Items]
Lease terms and the estimated useful lives right-of-use assets	8 years
Aircraft and engines under leases [member] | Top of range [member]
Disclosure Of Estimated Useful Lives Of The Assets Under Right Of Use Assets [Line Items]
Lease terms and the estimated useful lives right-of-use assets	12 years
Buildings [member] | Bottom of range [member]
Disclosure Of Estimated Useful Lives Of The Assets Under Right Of Use Assets [Line Items]
Lease terms and the estimated useful lives right-of-use assets	2 years
Buildings [member] | Top of range [member]
Disclosure Of Estimated Useful Lives Of The Assets Under Right Of Use Assets [Line Items]
Lease terms and the estimated useful lives right-of-use assets	10 years
Prepayment for land use rights [member]
Disclosure Of Estimated Useful Lives Of The Assets Under Right Of Use Assets [Line Items]
Lease terms and the estimated useful lives right-of-use assets	50 years
Other [member] | Bottom of range [member]
Disclosure Of Estimated Useful Lives Of The Assets Under Right Of Use Assets [Line Items]
Lease terms and the estimated useful lives right-of-use assets	2 years
Other [member] | Top of range [member]
Disclosure Of Estimated Useful Lives Of The Assets Under Right Of Use Assets [Line Items]
Lease terms and the estimated useful lives right-of-use assets	5 years

Operating Segment Information -

Operating Segment Information - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019SegmentRegion
Disclosure of operating segments [abstract]
Number of reportable operating segments | Segment	1
Number of geographical areas where the group's business operates | Region	3

Operating Segment Information_2

Operating Segment Information - Summary of Segment Results (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of operating segments [Line Items]
Reportable segment revenue from external customers	¥ 120,860	¥ 114,930
Reportable segment revenue	120,860	114,930	¥ 101,721
Reportable segment profit before income tax	4,302	3,867	¥ 8,620
Other segment information
Depreciation and amortization	22,077	15,302
Impairment charges / Impairment losses on financial assets, net	20	345
Interest income	96	110
Interest expense	5,169	3,727
Capital expenditure	43,156	31,178
Reportable segment assets	282,936	236,765
Reportable segment liabilities	212,539	177,413
Airline transportation operations [member]
Disclosure of operating segments [Line Items]
Reportable segment revenue from external customers	119,240	112,228
Reportable segment revenue	119,240	112,228
Reportable segment profit before income tax	2,745	2,723
Other segment information
Depreciation and amortization	21,816	15,051
Impairment charges / Impairment losses on financial assets, net	20	338
Interest income	108	118
Interest expense	5,152	3,721
Capital expenditure	42,853	30,670
Reportable segment assets	274,578	230,533
Reportable segment liabilities	211,035	176,836
Other segments [member]
Disclosure of operating segments [Line Items]
Reportable segment revenue from external customers	1,620	2,702
Inter-segment sales	2,052	1,425
Reportable segment revenue	3,672	4,127
Reportable segment profit before income tax	1,164	622
Other segment information
Depreciation and amortization	261	251
Impairment charges / Impairment losses on financial assets, net		7
Interest income	1	1
Interest expense	30	15
Capital expenditure	303	508
Reportable segment assets	6,225	4,635
Reportable segment liabilities	3,146	2,712
Eliminations [member]
Disclosure of operating segments [Line Items]
Inter-segment sales	(2,052)	(1,425)
Reportable segment revenue	(2,052)	(1,425)
Other segment information
Interest income	(13)	(9)
Interest expense	(13)	(9)
Reportable segment assets	(1,943)	(2,248)
Reportable segment liabilities	(1,943)	(2,248)
Unallocated [member]
Disclosure of operating segments [Line Items]
Reportable segment profit before income tax	393	522
Other segment information
Reportable segment assets	4,076	3,845
Reportable segment liabilities	¥ 301	¥ 113

Operating Segment Information_3

Operating Segment Information - Summary of Revenues by Geographical Area (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of geographical areas [Line Items]
Revenue	¥ 120,986	¥ 115,278	¥ 102,475
Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) [Member]
Disclosure of geographical areas [Line Items]
Revenue	80,058	76,517	67,923
International [member]
Disclosure of geographical areas [Line Items]
Revenue	37,082	34,744	3,624
Regional (Hong Kong, Macau and Taiwan) [member]
Disclosure of geographical areas [Line Items]
Revenue	¥ 3,846	¥ 4,017	¥ 30,928

Operating Segment Information_4

Operating Segment Information - Summary of Reconciliation of Reportable Segment Revenues, Profit, Assets and Liabilities (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of operating segments [abstract]
Reportable segment revenue	¥ 120,860	¥ 114,930	¥ 101,721
- Reclassification of expired sales in advance of carriage			357
- Reclassification of taxes relating to the expired tickets	126	348	397
Consolidated revenue	120,986	115,278	102,475
Profit before income tax
Reportable segment profit before income tax	4,302	3,867	8,620
- Differences in depreciation charges for aircraft and engines due to different depreciation lives	(3)	(11)	(10)
Profit before income tax	4,299	3,856	¥ 8,610
Assets
Reportable segment assets	282,936	236,765
- Differences in depreciation charges for aircraft and engines due to different depreciation lives	7	10
- Difference in intangible asset arising from the acquisition of Shanghai Airlines	2,242	2,242
Consolidated assets	285,185	239,017
Liabilities
Reportable segment liabilities	212,539	177,413
- Others		3
Consolidated liabilities	¥ 212,539	¥ 177,416

Revenues - Summary of Revenues

Revenues - Summary of Revenues (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of revenue [line items]
Revenue from contract with customers	¥ 120,986	¥ 115,278	¥ 102,475
Total revenue from contracts with customers	120,986	115,278	102,475
Total revenue from contracts with customers	120,986	115,278	102,475
Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) [member]
Disclosure of revenue [line items]
Revenue from contract with customers	79,868	76,449
Total revenue from contracts with customers	79,868	76,449
Total revenue from contracts with customers	79,868	76,449
International [member]
Disclosure of revenue [line items]
Revenue from contract with customers	37,082	34,744
Total revenue from contracts with customers	37,082	34,744
Total revenue from contracts with customers	37,082	34,744
Regional (Hong Kong, Macau and Taiwan) [member]
Disclosure of revenue [line items]
Revenue from contract with customers	3,846	4,017
Total revenue from contracts with customers	3,846	4,017
Total revenue from contracts with customers	3,846	4,017
Operating segments [member]
Disclosure of revenue [line items]
Revenue from contract with customers	120,796	115,210
Total revenue from contracts with customers	120,796	115,210
Total revenue from contracts with customers	120,796	115,210
Unallocated [member]
Disclosure of revenue [line items]
Revenue from contract with customers	2,052	1,425
Total revenue from contracts with customers	2,052	1,425
Total revenue from contracts with customers	2,052	1,425
Eliminations [member]
Disclosure of revenue [line items]
Revenue from contract with customers	(2,052)	(1,425)
Total revenue from contracts with customers	(2,052)	(1,425)
Total revenue from contracts with customers	(2,052)	(1,425)
Passenger [member]
Disclosure of revenue [line items]
Revenue from contract with customers	110,416	104,309
Total revenue from contracts with customers	110,416	104,309
Total revenue from contracts with customers	110,416	104,309
Cargo And Mail [member]
Disclosure of revenue [line items]
Revenue from contract with customers	3,826	3,627
Total revenue from contracts with customers	3,826	3,627
Total revenue from contracts with customers	3,826	3,627
Tour Operations [member]
Disclosure of revenue [line items]
Revenue from contract with customers	878	2,173
Total revenue from contracts with customers	878	2,173
Total revenue from contracts with customers	878	2,173
Ground Service [member]
Disclosure of revenue [line items]
Revenue from contract with customers	1,180	1,055
Total revenue from contracts with customers	1,180	1,055
Total revenue from contracts with customers	1,180	1,055
Commission Income [member]
Disclosure of revenue [line items]
Revenue from contract with customers	2,485	2,199
Total revenue from contracts with customers	2,485	2,199
Total revenue from contracts with customers	2,485	2,199
Other income [member]
Disclosure of revenue [line items]
Revenue from contract with customers	2,011	1,897
Total revenue from contracts with customers	2,011	1,897
Total revenue from contracts with customers	2,011	1,897
Rental Income [member]
Disclosure of revenue [line items]
Revenue from contract with customers	190	68	39
Total revenue from contracts with customers	190	68	39
Total revenue from contracts with customers	190	68	39
Airline transportation operations [member]
Disclosure of revenue [line items]
Revenue from contract with customers	119,176	112,508
Total revenue from contracts with customers	119,176	112,508
Total revenue from contracts with customers	119,176	112,508
Airline transportation operations [member] | Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) [member]
Disclosure of revenue [line items]
Revenue from contract with customers	78,248	73,747
Total revenue from contracts with customers	78,248	73,747
Total revenue from contracts with customers	78,248	73,747
Airline transportation operations [member] | International [member]
Disclosure of revenue [line items]
Revenue from contract with customers	37,082	34,744
Total revenue from contracts with customers	37,082	34,744
Total revenue from contracts with customers	37,082	34,744
Airline transportation operations [member] | Regional (Hong Kong, Macau and Taiwan) [member]
Disclosure of revenue [line items]
Revenue from contract with customers	3,846	4,017
Total revenue from contracts with customers	3,846	4,017
Total revenue from contracts with customers	3,846	4,017
Airline transportation operations [member] | Operating segments [member]
Disclosure of revenue [line items]
Revenue from contract with customers	119,176	112,508
Total revenue from contracts with customers	119,176	112,508
Total revenue from contracts with customers	119,176	112,508
Airline transportation operations [member] | Passenger [member]
Disclosure of revenue [line items]
Revenue from contract with customers	110,416	104,309
Total revenue from contracts with customers	110,416	104,309
Total revenue from contracts with customers	110,416	104,309
Airline transportation operations [member] | Cargo And Mail [member]
Disclosure of revenue [line items]
Revenue from contract with customers	3,826	3,627
Total revenue from contracts with customers	3,826	3,627
Total revenue from contracts with customers	3,826	3,627
Airline transportation operations [member] | Ground Service [member]
Disclosure of revenue [line items]
Revenue from contract with customers	1,180	1,055
Total revenue from contracts with customers	1,180	1,055
Total revenue from contracts with customers	1,180	1,055
Airline transportation operations [member] | Commission Income [member]
Disclosure of revenue [line items]
Revenue from contract with customers	2,485	2,199
Total revenue from contracts with customers	2,485	2,199
Total revenue from contracts with customers	2,485	2,199
Airline transportation operations [member] | Other income [member]
Disclosure of revenue [line items]
Revenue from contract with customers	1,269	1,368
Total revenue from contracts with customers	1,269	1,368
Total revenue from contracts with customers	1,269	1,368
Other Operation [member]
Disclosure of revenue [line items]
Revenue from contract with customers	1,620	2,702
Total revenue from contracts with customers	1,620	2,702
Total revenue from contracts with customers	1,620	2,702
Other Operation [member] | Domestic (the PRC, excluding Hong Kong, Macau and Taiwan) [member]
Disclosure of revenue [line items]
Revenue from contract with customers	1,620	2,702
Total revenue from contracts with customers	1,620	2,702
Total revenue from contracts with customers	1,620	2,702
Other Operation [member] | Operating segments [member]
Disclosure of revenue [line items]
Revenue from contract with customers	1,620	2,702
Total revenue from contracts with customers	1,620	2,702
Total revenue from contracts with customers	1,620	2,702
Other Operation [member] | Unallocated [member]
Disclosure of revenue [line items]
Revenue from contract with customers	2,052	1,425
Total revenue from contracts with customers	2,052	1,425
Total revenue from contracts with customers	2,052	1,425
Other Operation [member] | Eliminations [member]
Disclosure of revenue [line items]
Revenue from contract with customers	(2,052)	(1,425)
Total revenue from contracts with customers	(2,052)	(1,425)
Total revenue from contracts with customers	(2,052)	(1,425)
Other Operation [member] | Tour Operations [member]
Disclosure of revenue [line items]
Revenue from contract with customers	878	2,173
Total revenue from contracts with customers	878	2,173
Total revenue from contracts with customers	878	2,173
Other Operation [member] | Other income [member]
Disclosure of revenue [line items]
Revenue from contract with customers	742	529
Total revenue from contracts with customers	742	529
Total revenue from contracts with customers	742	529
Contracts with customers [member]
Disclosure of revenue [line items]
Revenue from contract with customers	120,796	115,210	102,436
Total revenue from contracts with customers	120,796	115,210	102,436
Total revenue from contracts with customers	¥ 120,796	¥ 115,210	¥ 102,436

Revenues - Schedule of Revenue

Revenues - Schedule of Revenue Recognized in Current Reporting Period that were Included in Contract Liabilities (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Passenger [member]
Disclosure of revenue that was included in contract liability [line items]
Revenue recognized that was included in contract liabilities at the beginning of the year	¥ 7,216	¥ 6,218

Revenues - Summary Of Accrual a

Revenues - Summary Of Accrual and Release (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Accrual and release [abstract]
At January 1	¥ 2,286	¥ 1,994
Deferred during the year	1,613	1,519
Recognized as revenue during the year	(1,654)	(1,227)
At December 31	2,245	2,286
Less: the related pending output value added tax therein	188	240
Accrual and release	¥ 2,057	¥ 2,046

Other Operating Income and Ga_3

Other Operating Income and Gains - Summary of Other Operating Income and Gains (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Analysis of income and expense [abstract]
Co-operation routes income	¥ 5,436	¥ 4,536	¥ 3,884
Routes subsidy income	353	441	295
Other subsidy income	535	453	762
Gain on disposal of items of property, plant and equipment	40	290	69
Gain on disposal of prepayments for land use rights		210	5
Gain on disposal of available-for-sale investments			4
Dividend income from available-for-sale investments			33
Gain on disposal of an associate	0	5	12
Dividend income from a financial asset at fair value through profit or loss	3	6
Dividend income from equity investments designated at fair value through other comprehensive income	19	23
Compensation from ticket sales agents	331	348	271
Gain on disposal of investment in a subsidiary	64	0	1,754
Gain on disposal of a subsidiary	421	280	392
Other operating income and gains	¥ 7,202	¥ 6,592	¥ 7,481

Operating Profit - Summary of O

Operating Profit - Summary of Operating Profit (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Analysis of income and expense [abstract]
Amortization of intangible assets	¥ 143	¥ 160	¥ 142
Depreciation of property, plant and equipment (Note 17) - owned	9,078	7,926	7,065
Depreciation of property, plant and equipment, owned		6,690	6,302
Depreciation of right-of-use assets (Note 19(b)) (2018 and 2017: amortization of prepayments for land use rights)	12,298		45
Depreciation of investment properties (Note 18)	25	26	12
Amortization of long-term deferred assets included in other non-current assets	536	468	402
Consumption of flight equipment spare parts	1,013	1,088	1,131
Auditors' remuneration	18	17	19
Foreign exchange differences, net	¥ 990	¥ 2,040	¥ (2,001)

Wages, Salaries and Benefits -

Wages, Salaries and Benefits - Summary of Wages, Salaries and Benefits (Detail) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of defined benefit plans [Line Items]
Wages, salaries, bonuses and allowances	¥ 19,385,000	¥ 17,865,000	¥ 16,474,000
Employee welfare and benefits	143,000	170,000	133,000
Pension	2,571,000	2,306,000	1,987,000
Medical insurance	789,000	706,000	663,000
Staff housing fund	1,056,000	948,000	886,000
Staff housing allowances	186,000	109,000	150,000
Early retirement benefits	22,000	30,000	27,000
Wages and salaries	24,152,000	22,134,000	20,320,000
Fees	805	800	800
Salaries, allowances and benefits in kind	665	1,464	2,133
Performance related bonuses			0
Pension scheme contributions	21	41	34
Total	1,491	2,305	2,967
Executive directors [Member] | Liu Shaoyong [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses	0	0	0
Executive directors [Member] | Ma Xulun [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses	0	0	0
Executive directors [Member] | Wang Junjin [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses	0
Executive directors [Member] | Xu Zhao [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses		0	0
Executive directors [Member] | Gu Jiadan [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses		0	0
Executive directors [Member] | Li Yangmin [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses	0	0	0
Executive directors [Member] | Tang Bing [Member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses	0	0	0
Executive directors [Member] | Tian Liuwen [Member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses		0	0
Executive directors [Member] | Yuan Jun [member]
Disclosure of defined benefit plans [Line Items]
Salaries, allowances and benefits in kind		867
Performance related bonuses	0	0
Pension scheme contributions		14
Total	0	881
Independent Non-executive Directors [Member] | Lin Wanli [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses	0	0
Independent Non-executive Directors [Member] | Li Ruoshan [Member]
Disclosure of defined benefit plans [Line Items]
Fees	200	200	200
Performance related bonuses	0	0	0
Total	200	200	200
Independent Non-executive Directors [Member] | Ma Weihua [member]
Disclosure of defined benefit plans [Line Items]
Fees	200	200	200
Performance related bonuses	0	0	0
Total	200	200	200
Independent Non-executive Directors [Member] | Shao Ruiqing [Member]
Disclosure of defined benefit plans [Line Items]
Fees	200	200	200
Performance related bonuses	0	0	0
Total	200	200	200
Independent Non-executive Directors [Member] | Cai Hongping [member]
Disclosure of defined benefit plans [Line Items]
Fees	200	200	200
Performance related bonuses	0	0	0
Total	200	200	200
Independent Non-executive Directors [Member] | Dong Xuebo [member]
Disclosure of defined benefit plans [Line Items]
Fees	5
Performance related bonuses	0
Total	5
Supervisors [member] | Xi Sheng [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses	0	0	0
Supervisors [member] | Gao Feng [member]
Disclosure of defined benefit plans [Line Items]
Salaries, allowances and benefits in kind	665	251
Pension scheme contributions	21	19
Total	686	270
Supervisors [member] | Li Jinde [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses	0	0
Supervisors [member] | Fang Zhaoya [Member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses	¥ 0
Supervisors [member] | Ba Shengji [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses		0	0
Supervisors [member] | Hu Jidong [member]
Disclosure of defined benefit plans [Line Items]
Salaries, allowances and benefits in kind			1,549
Performance related bonuses		0	0
Pension scheme contributions			22
Total			1,571
Supervisors [member] | Feng Jinxiong [member]
Disclosure of defined benefit plans [Line Items]
Salaries, allowances and benefits in kind		346	584
Performance related bonuses		0	0
Pension scheme contributions		8	12
Total		354	596
Supervisors [member] | Jia Shaojun [member]
Disclosure of defined benefit plans [Line Items]
Performance related bonuses		¥ 0	¥ 0

Wages, Salaries and Benefits _2

Wages, Salaries and Benefits - Summary of Wages, Salaries and Benefits (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2019
Classes of employee benefits expense [abstract]
Vested period on entitlement of an eligible employee	20 years

Wages, Salaries and Benefits _3

Wages, Salaries and Benefits - Summary of Five Highest Paid Individuals (Detail) ¥ in Thousands	12 Months Ended
	Dec. 31, 2019CNY (¥)	Dec. 31, 2018CNY (¥)	Dec. 31, 2017CNY (¥)
Disclosure of individuals with highest emoluments [Line Items]
Wages, salaries, bonuses and allowances	¥ 19,385,000	¥ 17,865,000	¥ 16,474,000
Total	24,152,000	22,134,000	¥ 20,320,000
Five Highest Paid Individuals [Member]
Disclosure of individuals with highest emoluments [Line Items]
Wages, salaries, bonuses and allowances	11,413	8,938
Pension scheme contributions	185	172
Total	¥ 11,598	¥ 9,110
Five Highest Paid Individuals [Member] | HK$2,000,001 to HK$2,500,000 [Member]
Disclosure of individuals with highest emoluments [Line Items]
Number of individuals	2	5
Five Highest Paid Individuals [Member] | HK$2,500,001 to HK$3,000,000 [Member]
Disclosure of individuals with highest emoluments [Line Items]
Number of individuals	2	0
Five Highest Paid Individuals [Member] | HK$3,000,001 to HK$3,500,000 [Member]
Disclosure of individuals with highest emoluments [Line Items]
Number of individuals	1	0

Wages, Salaries and Benefits _4

Wages, Salaries and Benefits - Summary of Information about Benefits of Directors (Detail) - CNY (¥) ¥ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure Of Information About Benefits Of Directors [Abstract]
Fees	¥ 805	¥ 800	¥ 800
Salaries, allowances and benefits in kind	665	1,464	2,133
Performance related bonuses	0	0	0
Pension scheme contributions	21	41	34
Total	¥ 1,491	¥ 2,305	¥ 2,967

Wages, Salaries and Benefits _5

Wages, Salaries and Benefits - Additional Information (Detail) - CNY (¥)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Directors, supervisors and five highest paid individuals [member]
Disclosure of defined benefit plans [Line Items]
Emoluments paid by the Group	¥ 0	¥ 0

Impairment Charges - Summary of

Impairment Charges - Summary of Impairment Charges (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of impairment loss and reversal of impairment loss [abstract]
Impairment charge on property, plant and equipment	¥ 4	¥ 15	¥ 379
Write-down of flight equipment spare parts to net realizable value		301	112
Impairment charge on assets classified as held for sale		2	3
Impairment charges	¥ 4	¥ 318	¥ 494

Impairment Losses on Financia_3

Impairment Losses on Financial Assets, Net - Summary of Impairment Losses on Financial Assets, Net (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of impairment loss and reversal of impairment loss [abstract]
Reversal of impairment losses on trade receivables	¥ (6)	¥ (21)	¥ (3)
Impairment losses on other receivables (note 31)	22	48
Reversal of impairment loss	¥ 16	¥ 27	¥ (3)

Fair Value Changes of Derivat_3

Fair Value Changes of Derivative Financial Instruments - Summary of (Loss)/Gain on Fair Value Changes of Derivative Financial Instruments (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of fair value gains and losses of derivative financial instruments [line items]
Gains (Losses) on fair value changes of derivative financial instruments		¥ 311	¥ (311)
Forward foreign exchange contracts [member]
Disclosure of fair value gains and losses of derivative financial instruments [line items]
Gains (Losses) on fair value changes of derivative financial instruments	¥ 0	¥ 311	¥ (311)

Finance Income - Summary of Fin

Finance Income - Summary of Finance Income (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Analysis of income and expense [abstract]
Interest income	¥ 96	¥ 110	¥ 111
Foreign exchange gains, net (note 13(b))			2,001
Interest income	¥ 96	¥ 110	¥ 2,112

Finance Costs - Summary of Fina

Finance Costs - Summary of Finance Costs (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Analysis of income and expense [abstract]
Interest on bank borrowings	¥ 1,149	¥ 1,569	¥ 1,590
Interest relating to lease liabilities (note 19(c))	3,894
Interest relating to obligations under finance leases		2,440	1,845
Interest relating to post-retirement benefit obligations	92	106	98
Interest relating to provision for lease return costs for aircraft and engines	270
Interest on bonds and debentures	520	468	381
Interest relating to interest rate swap contracts	(68)	(6)	63
Less: amount capitalized into advanced payments on acquisition of aircraft	(687)	(850)	(793)
Interest expense	5,170	3,727	3,184
Foreign exchange losses, net	990	2,040
Finance costs	¥ 6,160	¥ 5,767	¥ 3,184

Finance Costs - Summary of Fi_2

Finance Costs - Summary of Finance Costs (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Analysis of income and expense [abstract]
Average interest rate used for interest capitalisation	3.51%	3.54%	3.40%

Income Tax Expense - Summary of

Income Tax Expense - Summary of Income Tax Charged to Profit or Loss (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Major components of tax expense (income) [abstract]
Income tax	¥ 942	¥ 1,220	¥ 1,962
Deferred taxation	(123)	(294)	(162)
Income tax expense	¥ 819	¥ 926	¥ 1,800

Income Tax Expense - Additional

Income Tax Expense - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of income taxes [Line Items]
Income tax rate	25.00%	25.00%	25.00%
Sichuan Branch [member]
Disclosure of income taxes [Line Items]
Income tax rate	15.00%
Gansu Branch [member]
Disclosure of income taxes [Line Items]
Income tax rate	15.00%
Xibei Branch [member]
Disclosure of income taxes [Line Items]
Income tax rate	15.00%
Hong Kong [member]
Disclosure of income taxes [Line Items]
Income tax rate	16.50%	16.50%
China Eastern Airlines Yunnan Co., Ltd. [member]
Disclosure of income taxes [Line Items]
Income tax rate	15.00%
China Eastern Airlines E-Commerce Co., Ltd. [member]
Disclosure of income taxes [Line Items]
Income tax rate	15.00%	15.00%

Income Tax Expense - Summary _2

Income Tax Expense - Summary of the Reconciliation of Statutory Tax Rates to Effective Tax Rate (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]
Profit before income tax	¥ 4,299	¥ 3,856	¥ 8,610
Tax calculated at the tax rate of 25% (2018: 25%, 2017:25%)	1,075	964	2,152
Lower tax rates enacted by local authority	(139)	(93)	(87)
Share of results of associates and joint ventures	(71)	(51)	(63)
Income not subject to tax	(36)	(9)	(13)
Expenses not deductible for tax	128	88	38
Utilization of previously unrecognized tax losses	(11)	(60)	(253)
Unrecognized tax losses for the year	17	28	48
Utilization of previously unrecognized deductible temporary differences	(8)	(1)	(5)
Unrecognized deductible temporary differences	3	23	2
Adjustments in respect of current tax of previous periods	(34)	61	(8)
Super deduction of research and development costs	(27)	(24)	(11)
Income tax deduction of purchase of special equipment for production safety	(78)
Income tax expense	¥ 819	¥ 926	¥ 1,800
Effective tax rate	19.05%	24.01%	20.91%

Income Tax Expense - Summary _3

Income Tax Expense - Summary of the Reconciliation of Statutory Tax Rates to Effective Tax Rate (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]
Tax rate	25.00%	25.00%	25.00%

Dividends - Summary of Dividend

Dividends - Summary of Dividends (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Dividends Paid [abstract]
Proposed final – RMB0.050 per ordinary share (2018: Nil, 2017: RMB0.049)	¥ 819		¥ 740

Dividends - Summary of Divide_2

Dividends - Summary of Dividends (Parenthetical) (Detail) - ¥ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of Dividends Paid [abstract]
Dividends proposed per ordinary share	¥ 0.050	¥ 0	¥ 0.049

Dividends - Additional Informat

Dividends - Additional Information (Detail) - CNY (¥)	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement [LineItems]
Dividends proposed per ordinary share		¥ 0.050	¥ 0	¥ 0.049
Dividends proposed or declared amount		¥ 819,000,000		¥ 740,000,000
Dividend Proposal [Member]
Statement [LineItems]
Dividends proposed per ordinary share	¥ 0.050
Dividends proposed or declared amount	¥ 819
Number of shares in on proposal of dividend	16,379,509,203

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings per share [abstract]
Profit attributable to equity holders of the Company	¥ 3,192	¥ 2,698	¥ 6,342
Weighted average number of shares	15,104,893,522	14,467,585,682	14,467,585,682
Potentially dilutive options	0	0	0
Potentially dilutive other instruments	0	0	0

Property, Plant and Equipment -

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	¥ 180,104	¥ 166,856
Additions	8,054	21,283
Disposals	(91)	(4,892)
Transfer from construction in progress		0
Transfer from advanced payments on acquisition of aircraft	335	11,520
Transfer from investment properties (Note 18)	76	18
Transfer from right-of-use assets (Note 19)	14,264
Transfer to investment properties (Note 18)	(23)	(386)
Assets included in assets classified as held for sale		(13)
Transfer from/(to) other non-current assets	242	349
Disposal of a subsidiary (Note 45)	(26)
Depreciation provided during the year	(9,078)	(14,616)
Impairment	(4)	(15)	¥ (379)
Transfers		0
Ending balance	99,437	180,104	166,856
IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	85,688
Effect of adoption of IFRS	(94,416)
Ending balance		85,688
Cost [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	254,362	237,546
Ending balance	162,072	254,362	237,546
Accumulated depreciation and amortization [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(74,258)	(70,690)
Ending balance	(62,635)	(74,258)	(70,690)
Net Carrying Amount [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	180,104	166,856
Ending balance	99,437	180,104	166,856
Aircrafts, engines and flight equipment, owned [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	68,565	68,994
Effect of adoption of IFRS	0
Additions	4,137	6,057
Disposals	(10)	(3,304)
Transfer from construction in progress	0
Transfer from advanced payments on acquisition of aircraft	335	824
Transfer from investment properties (Note 18)	0
Transfer from right-of-use assets (Note 19)	14,264
Transfer to investment properties (Note 18)	0
Assets included in assets classified as held for sale		(13)
Transfer from/(to) other non-current assets	0
Disposal of a subsidiary (Note 45)	0
Depreciation provided during the year	(7,812)	(6,798)
Impairment	0	(15)
Transfers		2,820
Ending balance	79,479	68,565	68,994
Aircrafts, engines and flight equipment, owned [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	68,565
Ending balance		68,565
Aircrafts, engines and flight equipment, owned [member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	111,968	111,297
Ending balance	133,845	111,968	111,297
Aircrafts, engines and flight equipment, owned [member] | Accumulated depreciation and amortization [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(43,403)	(42,303)
Ending balance	(54,366)	(43,403)	(42,303)
Aircrafts, engines and flight equipment, owned [member] | Net Carrying Amount [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	68,565	68,994
Ending balance	79,479	68,565	68,994
Aircrafts, engines and flight equipment, held under finance leases [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	94,416	84,760
Additions		9,821
Disposals	0	(1,332)
Transfer from construction in progress	0
Transfer from advanced payments on acquisition of aircraft	0	10,696
Transfer from investment properties (Note 18)	0
Transfer from right-of-use assets (Note 19)	0
Transfer to investment properties (Note 18)	0
Transfer from/(to) other non-current assets	0
Disposal of a subsidiary (Note 45)	0
Depreciation provided during the year		(6,709)
Impairment	0
Transfers		(2,820)
Ending balance	0	94,416	84,760
Aircrafts, engines and flight equipment, held under finance leases [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	0
Effect of adoption of IFRS	(94,416)
Ending balance		0
Aircrafts, engines and flight equipment, held under finance leases [member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	117,824	105,801
Ending balance	0	117,824	105,801
Aircrafts, engines and flight equipment, held under finance leases [member] | Accumulated depreciation and amortization [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(23,408)	(21,041)
Ending balance	0	(23,408)	(21,041)
Aircrafts, engines and flight equipment, held under finance leases [member] | Net Carrying Amount [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	94,416	84,760
Ending balance	0	94,416	84,760
Buildings [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	8,530	6,478
Effect of adoption of IFRS	0
Additions	(41)	32
Disposals	(40)	(202)
Transfer from construction in progress	3,523	2,909
Transfer from advanced payments on acquisition of aircraft	0
Transfer from investment properties (Note 18)	76	18
Transfer from right-of-use assets (Note 19)	0
Transfer to investment properties (Note 18)	(23)	(386)
Transfer from/(to) other non-current assets	0
Disposal of a subsidiary (Note 45)	(8)
Depreciation provided during the year	(363)	(318)
Impairment	0
Transfers		(1)
Ending balance	11,654	8,530	6,478
Buildings [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	8,530
Ending balance		8,530
Buildings [member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	10,689	8,809
Ending balance	14,153	10,689	8,809
Buildings [member] | Accumulated depreciation and amortization [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(2,159)	(2,331)
Ending balance	(2,499)	(2,159)	(2,331)
Buildings [member] | Net Carrying Amount [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	8,530	6,478
Ending balance	11,654	8,530	6,478
Other property, plant and equipment [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	4,174	2,919
Effect of adoption of IFRS	0
Additions	716	1,192
Disposals	(41)	(54)
Transfer from construction in progress	214	548
Transfer from advanced payments on acquisition of aircraft	0
Transfer from investment properties (Note 18)	0
Transfer from right-of-use assets (Note 19)	0
Transfer to investment properties (Note 18)	0
Transfer from/(to) other non-current assets	309	359
Disposal of a subsidiary (Note 45)	(18)
Depreciation provided during the year	(903)	(791)
Impairment	(4)
Transfers		1
Ending balance	4,447	4,174	2,919
Other property, plant and equipment [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	4,174
Ending balance		4,174
Other property, plant and equipment [member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	9,462	7,934
Ending balance	10,217	9,462	7,934
Other property, plant and equipment [member] | Accumulated depreciation and amortization [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	(5,288)	(5,015)
Ending balance	(5,770)	(5,288)	(5,015)
Other property, plant and equipment [member] | Net Carrying Amount [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	4,174	2,919
Ending balance	4,447	4,174	2,919
Construction in progress [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	4,419	3,705
Effect of adoption of IFRS	0
Additions	3,242	4,181
Disposals	0	0
Transfer from construction in progress	(3,737)	(3,457)
Transfer from advanced payments on acquisition of aircraft	0	0
Transfer from investment properties (Note 18)	0	0
Transfer from right-of-use assets (Note 19)	0
Transfer to investment properties (Note 18)	0	0
Assets included in assets classified as held for sale		0
Transfer from/(to) other non-current assets	(67)	(10)
Disposal of a subsidiary (Note 45)	0
Depreciation provided during the year	0	0
Impairment	0	0
Transfers		0
Ending balance	3,857	4,419	3,705
Construction in progress [member] | IFRS 16 [Member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	4,419
Ending balance		4,419
Construction in progress [member] | Cost [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	4,419	3,705
Ending balance	3,857	4,419	3,705
Construction in progress [member] | Accumulated depreciation and amortization [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	0	0
Ending balance	0	0	0
Construction in progress [member] | Net Carrying Amount [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
Beginning balance	4,419	3,705
Ending balance	¥ 3,857	¥ 4,419	¥ 3,705

Property, Plant and Equipment_2

Property, Plant and Equipment - Additional Information (Detail) ¥ in Millions	Dec. 31, 2019CNY (¥)
Disclosure of detailed information about property, plant and equipment [Line Items]
Property, plant and equipment where ownership certificates have not obtained	¥ 9,206

Property, Plant and Equipment_3

Property, Plant and Equipment - Summary of Cost and Carring Amount of Aircraft Pledged as Collateral Under Borrowing Arrangements and Aircraft Held Under Finance Leases (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [Line Items]
- pledged as collateral	¥ 7,243	¥ 8,391
Cost [member] | Aircraft [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
- pledged as collateral	10,819	11,752
Net Carrying Amount [member] | Aircraft [member]
Disclosure of detailed information about property, plant and equipment [Line Items]
- pledged as collateral	¥ 7,243	¥ 8,391

Investment Properties - Summary

Investment Properties - Summary of Investment Properties (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about investment property [Line Items]
Beginning balance	¥ 724
Charge for the year (Note 7)	(25)	¥ (26)	¥ (12)
Ending balance	653	724
Cost [member]
Disclosure of detailed information about investment property [Line Items]
Beginning balance	940	392
Transfer from property, plant and equipment (Note 17)	35	474
Transfer from right-of-use assets (Note 19(b))	13	0
Transfer from intangible asset	0	98
Transfer to property, plant and equipment (Note 17)	(101)	(24)
Transfer to right-of-use assets (Note 19(b))	(4)	0
Ending balance	883	940	392
Accumulated depreciation and amortization [member]
Disclosure of detailed information about investment property [Line Items]
Beginning balance	216	90
Transfer from property, plant and equipment (Note 17)	12	88
Transfer from right-of-use assets (Note 19(b))	3	0
Transfer from intangible asset	0	18
Transfer to property, plant and equipment (Note 17)	(25)	(6)
Transfer to right-of-use assets (Note 19(b))	(1)
Charge for the year (Note 7)	25	26
Ending balance	¥ 230	¥ 216	¥ 90

Investment Properties - Additio

Investment Properties - Additional Information (Detail) - CNY (¥)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of detailed information about investment property [Line Items]
Fair value of the investment properties	¥ 653,000,000	¥ 724,000,000
Rental income	100,000,000	63,000,000	¥ 39,000,000
The amount of investment properties subject to restrictions on title	451,000,000	498,000,000
Investment properties [member]
Disclosure of detailed information about investment property [Line Items]
Transfers of fair value measurements from level 1 to level 2	0	0
Transfers of fair value measurements from level 2 to level 1	0	0
Transfers of fair value measurements into level 3	0	0
Transfers of fair value measurements out of level 3	0	0
Not measured at fair value but for which fair values are disclosed [member]
Disclosure of detailed information about investment property [Line Items]
Fair value of the investment properties	¥ 1,125,000,000	¥ 1,127,000,000

Investment Properties - Summa_2

Investment Properties - Summary of Fair Value Measurement Hierarchy of Investment Properties (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about investment property [Line Items]
Buildings	¥ 653	¥ 724
Not measured at fair value but for which fair values are disclosed [member]
Disclosure of detailed information about investment property [Line Items]
Buildings	1,125	1,127
Not measured at fair value but for which fair values are disclosed [member] | Quoted pricesin active markets (Level 1)
Disclosure of detailed information about investment property [Line Items]
Buildings	0
Not measured at fair value but for which fair values are disclosed [member] | Significant observable inputs (Level 2) [member]
Disclosure of detailed information about investment property [Line Items]
Buildings	144	243
Not measured at fair value but for which fair values are disclosed [member] | Significant unobservable inputs (Level 3) [member]
Disclosure of detailed information about investment property [Line Items]
Buildings	¥ 981	¥ 884

Leases - Summary of Prepayments

Leases - Summary of Prepayments For Land Use Rights (Detail) ¥ in Millions	12 Months Ended
	Dec. 31, 2018CNY (¥)
Disclosure Of Prepayments For Land Use Rights [Line Items]
Carrying amount at January 1, 2018	¥ 1,717
Recognized in profit or loss during the year	(330)
Carrying amount at December 31, 2018	¥ 1,387

Leases - Summary of right of us

Leases - Summary of right of use assets and the movements (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2017	Jan. 01, 2019
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	¥ 128,704		¥ 32,001
Depreciation provided during the year	(12,298)	¥ (45)
Right-of-use assets	128,704		32,001
Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	128,704		128,312
Additions	27,011
Transfer from investment properties (Note 18)	3
Transfer to property, plant and equipment (Note 17)	(14,264)
Transfer to investment properties (Note 18)	(10)
Disposal of a subsidiary (Note 45)	(10)
Disposals	(40)
Depreciation provided during the year	(12,298)
Right-of-use assets	128,704		128,312
Cost [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	175,545
Right-of-use assets	175,545
Accumulated depreciation [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	(46,841)
Right-of-use assets	(46,841)
Net carrying amount [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	128,704
Right-of-use assets	128,704
Aircraft, engines and flight equipment [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	126,464		126,417
Additions	26,315
Transfer to property, plant and equipment (Note 17)	(14,264)
Disposal of a subsidiary (Note 45)	0
Disposals	(40)
Depreciation provided during the year	(11,964)
Right-of-use assets	126,464		126,417
Aircraft, engines and flight equipment [member] | Cost [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	172,690
Right-of-use assets	172,690
Aircraft, engines and flight equipment [member] | Accumulated depreciation [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	(46,226)
Right-of-use assets	(46,226)
Aircraft, engines and flight equipment [member] | Net carrying amount [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	126,464
Right-of-use assets	126,464
Prepayments for land use rights [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	1,343		1,387
Additions	1
Transfer from investment properties (Note 18)	3
Transfer to property, plant and equipment (Note 17)	0
Transfer to investment properties (Note 18)	(10)
Disposal of a subsidiary (Note 45)	0
Disposals	0
Depreciation provided during the year	(38)
Right-of-use assets	1,343		1,387
Prepayments for land use rights [member] | Cost [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	1,662
Right-of-use assets	1,662
Prepayments for land use rights [member] | Accumulated depreciation [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	(319)
Right-of-use assets	(319)
Prepayments for land use rights [member] | Net carrying amount [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	1,343
Right-of-use assets	1,343
Buildings [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	824		496
Additions	622
Transfer to property, plant and equipment (Note 17)	0
Disposal of a subsidiary (Note 45)	(10)
Disposals	0
Depreciation provided during the year	(284)
Right-of-use assets	824		496
Buildings [member] | Cost [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	1,108
Right-of-use assets	1,108
Buildings [member] | Accumulated depreciation [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	(284)
Right-of-use assets	(284)
Buildings [member] | Net carrying amount [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	824
Right-of-use assets	824
Other assets [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	73		12
Additions	73
Transfer to property, plant and equipment (Note 17)	0
Disposal of a subsidiary (Note 45)	0
Disposals	0
Depreciation provided during the year	(12)
Right-of-use assets	73		¥ 12
Other assets [member] | Cost [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	85
Right-of-use assets	85
Other assets [member] | Accumulated depreciation [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	(12)
Right-of-use assets	(12)
Other assets [member] | Net carrying amount [member] | Finance Lease [Member]
Disclosure Of Right Of Use Assets And The Movements [Line Items]
Cost at January 1, 2019, net of accumulated depreciation	73
Right-of-use assets	¥ 73

Leases - Summary of lease liabi

Leases - Summary of lease liabilities (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure Of Lease Liabilities [Line Items]
Accretion of interest recognized during the year	¥ 3,894
Payments	(631)
Current portion	15,590
Non-current portion	94,685
Finance Lease [Member]
Disclosure Of Lease Liabilities [Line Items]
Carrying amount at January 1	77,427
Effect of adoption IFRS16	31,879
New leases	24,023	¥ 18,769
Effect of foreign exchange	851	1,419
Disposal of a subsidiary (Note 45)	(10)
Accretion of interest recognized during the year	3,894	2,440
Payments	(27,789)	(12,069)
Carrying amount at December 31	110,275	77,427
Current portion	15,590	9,364
Non-current portion	94,685	68,063
Finance Lease [Member] | Previously stated [member]
Disclosure Of Lease Liabilities [Line Items]
Carrying amount at January 1	¥ 109,306	66,868
Carrying amount at December 31		¥ 109,306

Leases - Schedule of undiscount

Leases - Schedule of undiscounted lease payments receivables (Detail) ¥ in Millions	Dec. 31, 2019CNY (¥)
Disclosure of maturity analysis of operating lease payments [Line items]
Undiscounted operating lease payments to be received	¥ 956
Less than 1 year [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Undiscounted operating lease payments to be received	165
1 to 2 years [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Undiscounted operating lease payments to be received	149
In the third year [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Undiscounted operating lease payments to be received	144
In the fourth year [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Undiscounted operating lease payments to be received	139
In the fifth year [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Undiscounted operating lease payments to be received	138
Later than five years [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Undiscounted operating lease payments to be received	¥ 221

Leases - Disclosure of lease ex

Leases - Disclosure of lease expenses (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2017
Total amount recognised in profit or loss
Interest on lease liabilities	¥ 3,894
Depreciation charge of right-of-use assets	12,298	¥ 45
Low value and short-term lease rental	631
Total amount recognized in profit or loss	¥ 16,823

Leases - Additional Information

Leases - Additional Information (Detail) ¥ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)Aircraft	Dec. 31, 2018CNY (¥)Aircraft
Disclosure Of Leases [Line Items]
Number of aircrafts | Aircraft	462	450
Operating lease income | ¥	¥ 190	¥ 68
Bottom of range [member]
Disclosure Of Leases [Line Items]
Lease Terms	8 years
Top of range [member]
Disclosure Of Leases [Line Items]
Lease Terms	12 years
Engine [Member] | Bottom of range [member]
Disclosure Of Leases [Line Items]
Lease Terms	8 years
Engine [Member] | Top of range [member]
Disclosure Of Leases [Line Items]
Lease Terms	12 years
Buildings [member] | Bottom of range [member]
Disclosure Of Leases [Line Items]
Lease Terms	2 years
Buildings [member] | Top of range [member]
Disclosure Of Leases [Line Items]
Lease Terms	10 years
Land [member]
Disclosure Of Leases [Line Items]
Lease Terms	50 years
Motor vehicles [member] | Bottom of range [member]
Disclosure Of Leases [Line Items]
Lease Terms	2 years
Motor vehicles [member] | Top of range [member]
Disclosure Of Leases [Line Items]
Lease Terms	5 years

Intangible Assets - Summary of

Intangible Assets - Summary of Intangible Assets (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	¥ 11,609	¥ 11,596
Additions	199	166
Amortization provided during the year	(143)	(160)	¥ (142)
Transfer from construction in process	36	7
Disposals	(3)
Ending balance	11,698	11,609	11,596
Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	12,445
Ending balance	12,669	12,445
Accumulated depreciation and amortization [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	(836)
Ending balance	(971)	(836)
Goodwill [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	11,270	11,270
Additions	0
Amortization provided during the year	0
Transfer from construction in process	0
Disposals	0
Ending balance	11,270	11,270	11,270
Goodwill [member] | Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	11,270
Ending balance	11,270	11,270
Computer software [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	339	293
Additions	199	166
Amortization provided during the year	(143)	(127)
Transfer from construction in process	36	7
Disposals	(3)
Ending balance	428	339	293
Computer software [member] | Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	1,077
Ending balance	1,301	1,077
Computer software [member] | Accumulated depreciation and amortization [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	(738)
Ending balance	(873)	(738)
Others [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	0	33
Additions	0
Amortization provided during the year	0	(33)
Ending balance	0	0	¥ 33
Others [member] | Cost [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	98
Ending balance	98	98
Others [member] | Accumulated depreciation and amortization [member]
Disclosure of reconciliation of changes in intangible assets and goodwill [Line items]
Beginning balance	(98)
Ending balance	¥ (98)	¥ (98)

Intangible Assets - Summary o_2

Intangible Assets - Summary of Intangible Assets (Parenthetical) (Detail)	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Discount rate applied to the cash flow projections	9.50%	10.00%
Growth rate used to extrapolate the cash flows	3.00%	3.00%

Investments in Associates - Sum

Investments in Associates - Summary of Investments in Associates (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of associates [abstract]
Share of net assets	¥ 1,977	¥ 1,696

Investments in Associates - S_2

Investments in Associates - Summary of Movements in Investments in Associates (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of associates [abstract]
At January 1	¥ 1,696	¥ 1,654
Additions	95
Share of results of associates	265	170	¥ 202
Share of revaluation on equity investments designated at fair value through other comprehensive income held by an associate	7	(24)
Share of other equity changes of an associate	8
Dividend received during the year	(85)	(104)
Disposal of a subsidiary (Note 45)	(9)
At December 31	¥ 1,977	¥ 1,696	¥ 1,654

Investments in Associates - S_3

Investments in Associates - Summary of Principal Associates (Detail) ¥ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)	Dec. 31, 2018CNY (¥)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Disclosure of associates [Line Items]
Registered capital	¥ 16,379	¥ 14,467
Eastern Air Group Finance Co., Ltd. [member]
Disclosure of associates [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Dec. 6, 1995
Registered capital	¥ 2,000	¥ 2,000
Attributable equity interest	25.00%	25.00%
Principal activities	Provision of financial services to group companies of CEA Holding
China Eastern Air Catering Investment Co., Ltd. [member]
Disclosure of associates [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Nov. 17, 2003
Registered capital	¥ 350	¥ 350
Attributable equity interest	45.00%	45.00%
Principal activities	Provision of air catering services
Shanghai Pratt & Whitney Aircraft Engine Maintenance Co., Ltd. [member]
Disclosure of associates [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Mar. 28, 2008
Registered capital | $			$ 40	$ 40
Attributable equity interest	51.00%	51.00%
Principal activities	Provision of aircraft, engine and other related components maintenance services
New Shanghai International Tower Co., Ltd. [member]
Disclosure of associates [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Nov. 17, 1992
Registered capital	¥ 167	¥ 167
Attributable equity interest	20.00%	20.00%
Principal activities	Property development provision and management services
Eastern Aviation Import & Export Co., Ltd. [member]
Disclosure of associates [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Jun. 9, 1993
Registered capital	¥ 80	¥ 80
Attributable equity interest	45.00%	45.00%
Principal activities	Provision of aviation equipment and spare parts purchase
Eastern Aviation Advertising Service Co., Ltd. [member]
Disclosure of associates [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Mar. 4, 1986
Registered capital	¥ 200	¥ 200
Attributable equity interest	45.00%	45.00%
Principal activities	Provision of aviation advertising agency services
Shanghai Collins Aviation Maintenance Service Co., Ltd. [member]
Disclosure of associates [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Sep. 27, 2002
Registered capital | $			$ 7	$ 7
Attributable equity interest	35.00%	35.00%
Principal activities	Provision of airline electronic product maintenance services
Shanghai Airlines Tours International (Group) Co., Ltd [member]
Disclosure of associates [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Aug. 29, 1992
Registered capital	¥ 143	¥ 50
Attributable equity interest	35.00%	100.00%
Principal activities	Tour operations, travel and air ticketing agency and transportation

Investments in Associates - Add

Investments in Associates - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Shanghai Pratt & Whitney Aircraft Engine Maintenance Co., Ltd. [member]
Disclosure of associates [Line Items]
Ownership interest	51.00%	51.00%

Investments in Associates - S_4

Investments in Associates - Summary of Aggregate Financial Information of Associates (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of associates [Line Items]
Share of the associates' profit for the year	¥ 265	¥ 170	¥ 202
Share of the associates' other comprehensive income			10
Aggregate carrying amount of the Group's interests in the associates	1,977	1,696	¥ 1,654
Associates [member]
Disclosure of associates [Line Items]
Share of the associates' other comprehensive income	7	(24)
Share of the associates' total comprehensive income	¥ 272	¥ 146

Investments in Joint Ventures -

Investments in Joint Ventures - Summary of Investments in Joint Ventures (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of joint ventures [abstract]
Share of net assets	¥ 627	¥ 577

Investments in Joint Ventures_2

Investments in Joint Ventures - Summary of Movements in Investments in Joint Ventures (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of joint ventures [abstract]
Beginning balance	¥ 577	¥ 557
Additions	102	16
Share of results	17	34	¥ 49
Dividend received during the year	(69)	(30)
Ending balance	¥ 627	¥ 577	¥ 557

Investments in Joint Ventures_3

Investments in Joint Ventures - Summary of Principal Joint Ventures (Detail) ¥ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)	Dec. 31, 2018CNY (¥)	Dec. 31, 2019USD ($)	Dec. 31, 2019AUD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2018AUD ($)
Disclosure of joint ventures [Line Items]
Paid-up capital | ¥	¥ 16,379	¥ 14,467
Shanghai Technologies Aerospace Co., Ltd. [member]
Disclosure of joint ventures [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Sep. 28, 2004
Paid-up capital			$ 73,000,000		$ 73,000,000
Attributable equity interest	51.00%	51.00%
Principal activities	Provision of repair and maintenance services
Shanghai Eastern Union Aviation Wheels & Brakes Maintenance Services Overhaul Engineering Co., Ltd. [member]
Disclosure of joint ventures [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Dec. 28, 1995
Paid-up capital			2,000,000		2,000,000
Attributable equity interest	40.00%	40.00%
Principal activities	Provision of spare parts repair and maintenance services
Eastern China Kaiya System Integration Co., Ltd. [member]
Disclosure of joint ventures [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	May 21, 1999
Paid-up capital | ¥	¥ 10	¥ 10
Attributable equity interest	41.00%	41.00%
Principal activities	Provision of computer systems development and maintenance services
CAE Melbourne Flight Training Pty Ltd. [member]
Disclosure of joint ventures [Line Items]
Place of establishment and operation	Australia
Date of establishment	Mar. 9, 2007
Paid-up capital				$ 11		$ 11
Attributable equity interest	50.00%	50.00%
Principal activities	Provision of flight training services
Shanghai Hute Aviation Technology Co., Ltd. [member]
Disclosure of joint ventures [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Apr. 9, 2003
Paid-up capital			30,000,000		30,000,000
Attributable equity interest	50.00%	50.00%
Principal activities	Provision of equipment maintenance services
Xi'an CEA SAFRAN Landing Systems Services Co., Ltd [member]
Disclosure of joint ventures [Line Items]
Place of establishment and operation	PRC/Mainland China
Date of establishment	Jul. 12, 2017
Paid-up capital			$ 40		$ 40
Attributable equity interest	50.00%	50.00%
Principal activities	Provision of aircraft, engine and other related components maintenance services

Investments in Joint Ventures_4

Investments in Joint Ventures - Summary of Aggregate Financial Information of Joint Ventures (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of joint ventures [Line Items]
Share of the joint ventures' profit for the year	¥ 17	¥ 34	¥ 49
Aggregate carrying amount of the Group's interests in the joint ventures	627	577	¥ 557
Joint ventures [member]
Disclosure of joint ventures [Line Items]
Share of the joint ventures' total comprehensive income	¥ 17	¥ 34

Equity Investments Designated_3

Equity Investments Designated at Fair Value Through Other Comprehensive Income - Summary of Equity Investments Designated at Fair Value Through Other Comprehensive Income (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Equity investments designated at fair value through other comprehensive income	¥ 1,274	¥ 1,247
Listed equity investments, at fair value [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Equity investments designated at fair value through other comprehensive income	496	510
Listed equity investments, at fair value [member] | Travelsky technology limited [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Equity investments designated at fair value through other comprehensive income	496	510
Unlisted equity investments, at cost [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Equity investments designated at fair value through other comprehensive income	778	737
Unlisted equity investments, at cost [member] | Sichuan Airlines Corporation Limited [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Equity investments designated at fair value through other comprehensive income	336	438
Unlisted equity investments, at cost [member] | Aviation Data Communication Corporation Limited [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Equity investments designated at fair value through other comprehensive income	244	161
Unlisted equity investments, at cost [member] | Others [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Equity investments designated at fair value through other comprehensive income	¥ 198	¥ 138

Equity Investments Designated_4

Equity Investments Designated at Fair Value Through Other Comprehensive Income - Additional Information (Detail) ¥ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)
Travelsky technology limited [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Dividends received	¥ 8
Sichuan Airlines Corporation Limited [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Dividends received	2
Other non-listed equity investments designated at fair value through other comprehensive income [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Dividends received	5
Aviation Data Communication Corporation Limited [member]
Disclosure of fair value of investments in equity instruments designated at fair value through other comprehensive income [line items]
Dividends received	¥ 4

Derivative Financial Instrume_3

Derivative Financial Instruments - Summary of Derivative Financial Instruments (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [Line Items]
Derivative financial instruments, assets	¥ 70	¥ 223
Derivative financial instruments, current assets	43	1
Derivative financial instruments, noncurrent assets	27	222
Derivative financial instruments, liabilities	23	29
Derivative financial instruments, current liabilities	13	29
Derivative financial instruments, noncurrent liabilities	10
Forward currency contracts [member]
Disclosure of detailed information about financial instruments [Line Items]
Derivative financial instruments, assets	43
Derivative financial instruments, current assets	43
Derivative financial instruments, liabilities	13	29
Derivative financial instruments, current liabilities	13	29
Interest rate swaps [member]
Disclosure of detailed information about financial instruments [Line Items]
Derivative financial instruments, assets	27	223
Derivative financial instruments, current assets	0	¥ 1
Derivative financial instruments, liabilities	10
Derivative financial instruments, current liabilities	¥ 0

Derivative Financial Instrume_4

Derivative Financial Instruments - Additional Information (Detail) - 12 months ended Dec. 31, 2019 ¥ in Millions, $ in Millions	CNY (¥)	USD ($)	USD ($)
Disclosure of detailed information about financial instruments [Line Items]
Market interest rates under finance leases | ¥	¥ 3,894
Forward currency contracts [member]
Disclosure of detailed information about financial instruments [Line Items]
Hedge ratio	1.00%	1.00%
Interest rate swaps [member]
Disclosure of detailed information about financial instruments [Line Items]
Notional amount | ¥	¥ 6,194
Hedge ratio	1.00%	1.00%
Interest Rate Risk [Member] | Interest rate swaps [member]
Disclosure of detailed information about financial instruments [Line Items]
Notional amount | $			$ 888
Market interest rates under finance leases | $		$ 888

Derivative Financial Instrume_5

Derivative Financial Instruments - Summary of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments (Detail) ¥ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)shares
Forward currency contracts (forecasted transactions are highly probable) | Capital expenditures [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 2,721
Average forward rate (RMB/USD) | shares	6.9771
Forward currency contracts (forecasted transactions are highly probable) | Highly probable forecasted purchases [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 2,693
Average forward rate (RMB/USD) | shares	6.9368
Interest rate swaps [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 6,194
Hedged rate (%)	1.6831%
Less than 3 months [member] | Interest rate swaps [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 31
Hedged rate (%)	2.045%
3 to 6 months [member] | Forward currency contracts (forecasted transactions are highly probable) | Capital expenditures [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 628
Average forward rate (RMB/USD) | shares	7.0151
3 to 6 months [member] | Interest rate swaps [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 30
Hedged rate (%)	1.88%
6 to 9 months [member] | Forward currency contracts (forecasted transactions are highly probable) | Capital expenditures [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 1,047
Average forward rate (RMB/USD) | shares	6.9325
6 to 9 months [member] | Forward currency contracts (forecasted transactions are highly probable) | Highly probable forecasted purchases [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 1,835
Average forward rate (RMB/USD) | shares	6.9629
9 to 12 months [member] | Forward currency contracts (forecasted transactions are highly probable) | Capital expenditures [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 1,046
Average forward rate (RMB/USD) | shares	6.9988
9 to 12 months [member] | Forward currency contracts (forecasted transactions are highly probable) | Highly probable forecasted purchases [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 858
Average forward rate (RMB/USD) | shares	6.8810
Over 365 days [member] | Interest rate swaps [member]
Disclosure of Changes to Forecasted Amounts of Cash Flows of Hedged Items and Hedging Instruments [line items]
Notional amount (in RMB million)	¥ 6,133
Hedged rate (%)	1.6803%

Derivative Financial Instrume_6

Derivative Financial Instruments - Summary of Impacts of Hedging Instruments on Statement of Financial Position (Detail) - 12 months ended Dec. 31, 2019 ¥ in Millions, $ in Millions	CNY (¥)	USD ($)
Forward currency contracts [member] | Capital expenditures [member]
Disclosure of detailed information about hedging instruments [line items]
Notional amount	¥ 2,721
Carrying amount, Assets	¥ 8
Line item in the statement of financial position	Derivative financial instruments
Change in fair value used for measuring hedge ineffectiveness for the year RMB million	¥ 141
Forward currency contracts [member] | Highly probable forecasted purchases [member]
Disclosure of detailed information about hedging instruments [line items]
Notional amount	2,693
Carrying amount, Assets	¥ 22
Line item in the statement of financial position	Derivative financial instruments
Change in fair value used for measuring hedge ineffectiveness for the year RMB million	¥ 22
Forward currency contracts [member] | Foreign currency risk. | Payment on bonds [member]
Disclosure of detailed information about hedging instruments [line items]
Line item in the statement of financial position	Derivative financial instruments
Change in fair value used for measuring hedge ineffectiveness for the year RMB million	¥ 14
Interest rate swaps [member]
Disclosure of detailed information about hedging instruments [line items]
Notional amount	6,194
Interest rate swaps [member] | Interest Rate Risk [Member]
Disclosure of detailed information about hedging instruments [line items]
Notional amount | $		$ 888
Interest rate swaps [member] | Interest Rate Risk [Member] | Payment on lease liabilities [member]
Disclosure of detailed information about hedging instruments [line items]
Notional amount	6,194
Carrying amount, Liabilities	¥ 17
Line item in the statement of financial position	Derivative financial instruments
Change in fair value used for measuring hedge ineffectiveness for the year RMB million	¥ (137)

Derivative Financial Instrume_7

Derivative Financial Instruments - Summary of impacts of Hedged Items on Statement of Financial Position (Detail) ¥ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)
Disclosure of detailed information about hedged items [line items]
Change in fair value used for measuring hedge ineffectiveness for the year	¥ 14
Cash flow hedge reserve	47
Capital expenditures [member]
Disclosure of detailed information about hedged items [line items]
Change in fair value used for measuring hedge ineffectiveness for the year	141
Cash flow hedge reserve	8
Highly probable forecasted purchases [member]
Disclosure of detailed information about hedged items [line items]
Change in fair value used for measuring hedge ineffectiveness for the year	22
Cash flow hedge reserve	22
Payment on bonds [member]
Disclosure of detailed information about hedged items [line items]
Change in fair value used for measuring hedge ineffectiveness for the year	14
Cash flow hedge reserve	0
Payment on lease liabilities [member]
Disclosure of detailed information about hedged items [line items]
Change in fair value used for measuring hedge ineffectiveness for the year	(163)
Cash flow hedge reserve	¥ 17

Derivative Financial Instrume_8

Derivative Financial Instruments - Summary of Effects of Cash Flow Hedge on Statement of Profit or Loss and Statement of Comprehensive Income (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Net other comprehensive income that may be reclassified to profit or loss in subsequent periods	¥ (110)	¥ 43	¥ 160
Capital expenditures [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Gross amount	141
Tax effect	(35)
Total	106
Hedge ineffectiveness recognized in profit or loss	0
Gross amount	(82)
Tax effect	20
Net other comprehensive income that may be reclassified to profit or loss in subsequent periods	¥ (62)
Line item (gross amount) in the statement of profit or loss	Finance Costs
Highly probable forecasted purchases [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Gross amount	¥ 22
Tax effect	(6)
Total	16
Hedge ineffectiveness recognized in profit or loss	0
Gross amount	(22)
Tax effect	6
Net other comprehensive income that may be reclassified to profit or loss in subsequent periods	¥ (16)
Line item (gross amount) in the statement of profit or loss	Finance Costs
Payment on bonds [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Gross amount	¥ 14
Tax effect	(4)
Total	10
Hedge ineffectiveness recognized in profit or loss	0
Gross amount	(14)
Tax effect	4
Net other comprehensive income that may be reclassified to profit or loss in subsequent periods	¥ (10)
Line item (gross amount) in the statement of profit or loss	Finance Costs
Payment on lease liabilities [member]
Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [line items]
Gross amount	¥ (137)
Tax effect	34
Total	(103)
Hedge ineffectiveness recognized in profit or loss	0
Gross amount	(68)
Tax effect	17
Net other comprehensive income that may be reclassified to profit or loss in subsequent periods	¥ (51)
Line item (gross amount) in the statement of profit or loss	Finance Costs

Other Non-current Assets - Summ

Other Non-current Assets - Summary of Other Non-current Assets (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Miscellaneous non-current assets [abstract]
Deposits relating to aircraft held under leases	¥ 156	¥ 177
Deferred pilot recruitment costs	1,873	1,536
Rebate receivables on aircraft acquisitions	42	55
Prepayment for acquisition of property, plant and equipment	1,095	854
Others	804	748
Other non-current assets	¥ 3,970	¥ 3,370

Deferred Taxation - Summary of

Deferred Taxation - Summary of Net Deferred Tax Assets/(Liabilities) (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets and liabilities [abstract]
Deferred tax assets	¥ 853	¥ 207
Deferred tax liabilities	(22)	(84)
Net deferred tax assets	¥ 831	¥ 123	¥ (240)

Deferred Taxation - Summary o_2

Deferred Taxation - Summary of Movements in Net Deferred Tax Assets/(Liabilities) (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	¥ 123	¥ (240)
Credited to profit or loss (note 14)	123	294	¥ 162
Charged to other comprehensive income	31	69
At the end of the year	831	123	(240)
Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	677	(240)
At the end of the year		¥ 677	¥ (240)
Adoption of IFRS 16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption	¥ 94,416

Deferred Taxation - Summary o_3

Deferred Taxation - Summary of Deferred Tax Assets and Liabilities Prior to Offsetting of Balances within Same Tax Jurisdiction (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	¥ 853	¥ 207
Net deferred tax (liabilities)/assets	831	123	¥ (240)
Deferred tax liabilities	(22)	(84)
Provision for lease return costs for aircraft and engines [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	1,075
Impairment provision for flight equipment spare parts [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	53	126
Impairment provision for receivables [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	76	75
Impairment provision for property, plant, and equipment [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	101	103
Derivative financial instruments [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	6	7
Assets at fair value through profit or loss [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	0	6
Other payables and accruals [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	71	89
Government Grants [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	35	42
Sale and lease back transaction [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	0	6
Loss available for offsetting against future taxable profits [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	66
Net deferred tax (liabilities)/assets	66
Aged payables [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	1	2
Lease liabilities/Right-of-use assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	(352)	(328)
Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Net deferred tax (liabilities)/assets	(283)	(278)
Cost [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	1,484	456
Net deferred tax (liabilities)/assets	831	123
Deferred tax liabilities	(653)	(333)
Cost [member] | Provision for lease return costs for aircraft and engines [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	1,075
Cost [member] | Impairment provision for flight equipment spare parts [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	53	126
Cost [member] | Impairment provision for receivables [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	76	75
Cost [member] | Impairment provision for property, plant, and equipment [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	101	103
Cost [member] | Derivative financial instruments [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	6	7
Deferred tax liabilities	(18)	(55)
Cost [member] | Assets at fair value through profit or loss [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets		6
Cost [member] | Other payables and accruals [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	71	89
Cost [member] | Government Grants [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	35	42
Cost [member] | Sale and lease back transaction [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets		6
Cost [member] | Aged payables [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax assets	1	2
Cost [member] | Lease liabilities/Right-of-use assets [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax liabilities	(352)	0
Cost [member] | Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Deferred tax liabilities	¥ (283)	¥ (278)

Deferred Taxation - Summary o_4

Deferred Taxation - Summary of Movements in Net Deferred Tax (Liabilities)/Assets of the Group (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	¥ 123	¥ (240)
(Charged)/ credited to profit or loss	123	294	¥ 162
Charged to other comprehensive income	31	69
At the end of the year	831	123	(240)
IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	94,416
Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	123
At the end of the year		123
Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	677	(240)
At the end of the year		677	(240)
Provision for lease return costs for aircraft and engines [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Charged to other comprehensive income	193
At the end of the year	1,075
Provision for lease return costs for aircraft and engines [Member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	882
At the end of the year		882
Provision for lease return costs for aircraft and engines [Member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the end of the year	882
Impairment provision for flight equipment spare parts [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	126
(Charged)/ credited to profit or loss	(73)	75
Charged to other comprehensive income	0
At the end of the year	53	126
Impairment provision for flight equipment spare parts [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Impairment provision for flight equipment spare parts [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	126
At the end of the year		126
Impairment provision for flight equipment spare parts [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	126	51
At the end of the year		126	51
Impairment provision for receivables [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	75
(Charged)/ credited to profit or loss	1	3
Charged to other comprehensive income	0
At the end of the year	76	75
Impairment provision for receivables [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Impairment provision for receivables [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	75
At the end of the year		75
Impairment provision for receivables [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	75	72
At the end of the year		75	72
Impairment provision for property, plant, and equipment [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	103
(Charged)/ credited to profit or loss	(2)	(1)
Charged to other comprehensive income	0
At the end of the year	101	103
Impairment provision for property, plant, and equipment [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Impairment provision for property, plant, and equipment [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	103
At the end of the year		103
Impairment provision for property, plant, and equipment [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	103	104
At the end of the year		103	104
Derivative financial instruments [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	7
(Charged)/ credited to profit or loss	0	(78)
Charged to other comprehensive income	(1)	3
At the end of the year	6	7
Derivative financial instruments [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Derivative financial instruments [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	7
At the end of the year		7
Derivative financial instruments [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	7	82
At the end of the year		7	82
Other payables and accruals [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	89
(Charged)/ credited to profit or loss	(18)	60
Charged to other comprehensive income	0
At the end of the year	71	89
Other payables and accruals [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Other payables and accruals [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	89
At the end of the year		89
Other payables and accruals [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	89	29
At the end of the year		89	29
Loss to cover [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
(Charged)/ credited to profit or loss	66
At the end of the year	66
Aged payables [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	2
(Charged)/ credited to profit or loss	(1)	(3)
Charged to other comprehensive income	0
At the end of the year	1	2
Aged payables [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Aged payables [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	2
At the end of the year		2
Aged payables [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	2	5
At the end of the year		2	5
Net deferred tax assets [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	456
(Charged)/ credited to profit or loss	147	110
Charged to other comprehensive income	(1)	3
At the end of the year	1,484	456
Net deferred tax assets [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	882
At the end of the year		882
Net deferred tax assets [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	456
At the end of the year		456
Net deferred tax assets [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	1,338	343
At the end of the year		1,338	343
Lease liabilities/Right-of-use assets [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(328)
(Charged)/ credited to profit or loss	(24)
Charged to other comprehensive income	0
At the end of the year	(352)	(328)
Lease liabilities/Right-of-use assets [member] | IFRS 9 [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(328)
At the end of the year		(328)
Accumulated depreciation and amortization [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
(Charged)/ credited to profit or loss		56
Accumulated depreciation and amortization [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year		(56)
At the end of the year			(56)
Derivative financial instruments [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(55)
(Charged)/ credited to profit or loss	0
Charged to other comprehensive income	37	(17)
At the end of the year	(18)	(55)
Derivative financial instruments [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Derivative financial instruments [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(55)
At the end of the year		(55)
Derivative financial instruments [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(55)	(38)
At the end of the year		(55)	(38)
Net deferred tax liabilities [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(333)
(Charged)/ credited to profit or loss	(24)	184
Charged to other comprehensive income	32	66
At the end of the year	(653)	(333)
Net deferred tax liabilities [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(328)
At the end of the year		(328)
Net deferred tax liabilities [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(333)
At the end of the year		(333)
Net deferred tax liabilities [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(661)	(583)
At the end of the year		(661)	(583)
Assets at fair value through profit or loss [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	6
(Charged)/ credited to profit or loss	(6)	6
Charged to other comprehensive income	0
At the end of the year	0	6
Assets at fair value through profit or loss [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Assets at fair value through profit or loss [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	6
At the end of the year		6
Assets at fair value through profit or loss [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	6
At the end of the year		6
Government Grants [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	42
(Charged)/ credited to profit or loss	(7)	42
Charged to other comprehensive income	0
At the end of the year	35	42
Government Grants [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Government Grants [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	42
At the end of the year		42
Government Grants [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	42
At the end of the year		42
Sale and lease back transaction [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	6
(Charged)/ credited to profit or loss	(6)	6
Charged to other comprehensive income	0
At the end of the year	0	6
Sale and lease back transaction [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Sale and lease back transaction [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	6
At the end of the year		6
Sale and lease back transaction [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	6
At the end of the year		6
Investments in equity instruments designated at fair value through other comprehensive income [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(278)
(Charged)/ credited to profit or loss	0
Charged to other comprehensive income	(5)	83
At the end of the year	(283)	(278)
Investments in equity instruments designated at fair value through other comprehensive income [member] | IFRS16 [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Effect of adoption of IFRS 16	0
Investments in equity instruments designated at fair value through other comprehensive income [member] | Previously Stated [Member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	(278)
At the end of the year		(278)
Investments in equity instruments designated at fair value through other comprehensive income [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year	¥ (278)	(361)
At the end of the year		(278)	(361)
Passenger ticket breakage [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
(Charged)/ credited to profit or loss		128
Passenger ticket breakage [member] | Currently Stated [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
At the beginning of the year		¥ (128)
At the end of the year			¥ (128)

Deferred Taxation - Summary o_5

Deferred Taxation - Summary of Movements in Net Deferred Tax (Liabilities)/Assets of the Group (Parenthetical) (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets and liabilities [abstract]
Deferred Tax Assets Not Recognized	¥ 12,558	¥ 11,360

Deferred Taxation - Summary o_6

Deferred Taxation - Summary of Balances for Which Deferred Tax Assets Have Not Been Recognised (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Deferred taxation [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Tax losses carried forward	¥ 54	¥ 67
Other deductible temporary differences	7	27
Total unrecognised deferred tax assets	61	94
Temporary differences [member]
Disclosure of temporary difference, unused tax losses and unused tax credits [Line items]
Tax losses carried forward	217	267
Other deductible temporary differences	30	126
Total unrecognised deferred tax assets	¥ 247	¥ 393

Flight Equipment Spare Parts -

Flight Equipment Spare Parts - Summary of Flight Equipment Spare Parts (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of inventories [Line Items]
Flight equipment spare parts	¥ 2,407	¥ 1,950
Flight equipment spare parts [member]
Disclosure of inventories [Line Items]
Flight equipment spare parts	2,407	1,950
Flight equipment spare parts [member] | Cost [member]
Disclosure of inventories [Line Items]
Flight equipment spare parts	2,732	2,778
Flight equipment spare parts [member] | Impairment [member]
Disclosure of inventories [Line Items]
Flight equipment spare parts	¥ (325)	¥ (828)

Flight Equipment Spare Parts _2

Flight Equipment Spare Parts - Summary of Movements in Provision for Impairment of Flight Equipment Spare Parts (Detail) - Provision written off in relation to disposal of spare parts [member] - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of inventories [Line Items]
Beginning balance	¥ 828	¥ 531
Accrual (note 8)	0	301
Amount written off in relation to disposal of spare parts	(503)	(4)
Ending balance	¥ 325	¥ 828

Trade and Notes Receivables - S

Trade and Notes Receivables - Summary of Trade and Notes Receivables (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Trade and other current receivables [abstract]
Trade receivables	¥ 1,793	¥ 1,525
Notes receivable	0	4
Current trade and notes receivables	1,793	1,529
Impairment	(76)	(93)
Trade and notes receivables	¥ 1,717	¥ 1,436

Trade and Notes Receivables -_2

Trade and Notes Receivables - Summary of Ageing Analysis of Trade and Notes Receivables (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [Line Items]
Trade and notes receivables	¥ 1,717	¥ 1,436
Within 90 days [member]
Disclosure of financial assets [Line Items]
Trade and notes receivables	1,615	1,354
91 to 180 days [member]
Disclosure of financial assets [Line Items]
Trade and notes receivables	33	52
181 to 365 days [member]
Disclosure of financial assets [Line Items]
Trade and notes receivables	39	11
Over 365 days [member]
Disclosure of financial assets [Line Items]
Trade and notes receivables	¥ 30	¥ 15

Trade and Notes Receivables -_3

Trade and Notes Receivables - Summary of Provision for Impairment of Trade Receivables (Detail) - Trade and notes receivables [member] - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [Line Items]
At beginning of year	¥ 93	¥ 119
Impairment losses, net (note 10)	(6)	(21)
Amount written off as uncollectible	(4)	(5)
Disposal of a subsidiary	(7)
At end of year	¥ 76	¥ 93

Trade and Notes Receivables -_4

Trade and Notes Receivables - Schedule of Credit Risk Exposure on Group's Trade Receivables (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets that are either past due or impaired [Line Items]
Gross carrying amount (RMB million)	¥ 1,793	¥ 1,525
Cost [member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Gross carrying amount (RMB million)	¥ 1,793	¥ 1,525
IFRS 9 [member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Expected credit loss rate (%)	4.24%	6.10%
Expected credit losses (RMB million)	¥ 76	¥ 93
IFRS 9 [member] | Within 90 days [member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Expected credit loss rate (%)	2.94%	0.78%
Expected credit losses (RMB million)	¥ 1	¥ 1
IFRS 9 [member] | Current [member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Expected credit loss rate (%)	0.12%	0.57%
Expected credit losses (RMB million)	¥ 2	¥ 7
IFRS 9 [member] | 181 to 365 Days [Member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Expected credit loss rate (%)	2.50%	1.59%
Expected credit losses (RMB million)	¥ 1	¥ 1
IFRS 9 [member] | Over 365 days [member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Expected credit loss rate (%)	70.59%	83.17%
Expected credit losses (RMB million)	¥ 72	¥ 84
IFRS 9 [member] | Cost [member] | Within 90 days [member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Gross carrying amount (RMB million)	34	129
IFRS 9 [member] | Cost [member] | Current [member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Gross carrying amount (RMB million)	1,617	1,232
IFRS 9 [member] | Cost [member] | 181 to 365 Days [Member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Gross carrying amount (RMB million)	40	63
IFRS 9 [member] | Cost [member] | Over 365 days [member]
Disclosure of financial assets that are either past due or impaired [Line Items]
Gross carrying amount (RMB million)	¥ 102	¥ 101

Financial Asset at Fair Value_3

Financial Asset at Fair Value Through Profit or Loss - Summary of Financial Assets at Fair Value Through Profit or Loss (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Shanghai Pudong Development Bank Co., Ltd. [member]
Disclosure of financial assets [Line Items]
Available-for-sale investments	¥ 121	¥ 96

Prepayments and Other Receiva_3

Prepayments and Other Receivables - Summary of Prepayments and Other Receivables (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial assets [Line Items]
Value added tax recoverable	¥ 188	¥ 240
Refundable advanced payment on acquisition of aircraft	538
Prepayments and other receivables	14,093	11,776
Cost [member]
Disclosure of financial assets [Line Items]
Value added tax recoverable	6,991	5,484
Value added tax refundable	800	979
Subsidy receivable	2,072	2,092
Prepaid corporate income tax	608	306
Advance to suppliers	129	222
Prepaid aircraft operating lease rentals		478
Rebate receivables on aircraft acquisitions	1,582	1,399
Amounts due from related parties (note 49(c)(i))	776	278
Deposits relating to aircraft held under leases	29	13
Other deposits	168	194
Others	663	577
Prepayments and other receivables	14,356	12,022
Impairment [member]
Disclosure of financial assets [Line Items]
Prepayments and other receivables	¥ (263)	¥ (246)

Prepayments and Other Receiva_4

Prepayments and Other Receivables - Schedule of Movements of Loss Allowances Measured at 12-month and Lifetime Expected Credit Losses for Financial Assets Included in Other Receivables (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	¥ 6,679
Ending balance	16,429	¥ 6,679
Accumulated depreciation, amortisation and impairment [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	246	198
Accrual	22	49
Disposal of a subsidiary	(5)
Reversal		(1)
Ending balance	263	246
Cost [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	2,977	2,541
Accrual	801	441
Reversal	(43)	(5)
Ending balance	3,735	2,977
12-month expected credit losses [member] | Accumulated depreciation, amortisation and impairment [member] | Stage One [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	16	4
Transferred - to stage 2	(1)	(1)
Accrual	18	13
Disposal of a subsidiary	0
Ending balance	33	16
12-month expected credit losses [member] | Cost [member] | Stage One [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	2,298	2,394
Transferred - to stage 2	(160)	(399)
Accrual	1,066	303
Reversal	(26)
Ending balance	3,178	2,298
Lifetime expected credit losses [member] | Accumulated depreciation, amortisation and impairment [member] | Stage three [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	122	122
Ending balance	122	122
Lifetime expected credit losses [member] | Accumulated depreciation, amortisation and impairment [member] | Expected credit losses collectively assessed [member] | Stage Two [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	108	72
Transferred - to stage 2	1	1
Accrual	4	36
Disposal of a subsidiary	(5)
Reversal		(1)
Ending balance	108	108
Lifetime expected credit losses [member] | Cost [member] | Stage three [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	122	122
Ending balance	122	122
Lifetime expected credit losses [member] | Cost [member] | Expected credit losses individually assessed [member] | Stage Two [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	298
Transferred - to stage 2	160	298
Ending balance	458	298
Lifetime expected credit losses [member] | Cost [member] | Expected credit losses collectively assessed [member] | Stage Two [member]
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [line items]
Beginning balance	259	25
Transferred - to stage 2		101
Accrual	(265)	138
Reversal	(17)	(5)
Ending balance	¥ (23)	¥ 259

Restricted Bank Deposits and _3

Restricted Bank Deposits and Short-term Bank Deposits - Summary of Restricted Bank Deposits and Short-term Bank Deposits (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Restricted bank deposits	¥ 6	¥ 16

Cash and Cash Equivalents - Sum

Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Cash and cash equivalents [abstract]
Cash	¥ 1	¥ 1
Bank balances	1,349	645
Cash and cash equivalents	¥ 1,350	¥ 646

Cash and Cash Equivalents - Add

Cash and Cash Equivalents - Additional Information (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [Line Items]
Cash and bank balances	¥ 1,350	¥ 646
RMB [member]
Disclosure of detailed information about financial instruments [Line Items]
Cash and bank balances	¥ 547	¥ 330

Assets Classified as Held for_2

Assets Classified as Held for Sale - Additional Information (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
China Aviation Supplies Co Ltd [Member]
Disclosure of assets held for sale [line items]
Assets classified as held for sale	¥ 6	¥ 11

Trade and Bills Payables - Summ

Trade and Bills Payables - Summary of Aged Analysis of Trade and Bills Payables (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of financial liabilities [Line Items]
Trade and bills payable	¥ 3,877	¥ 4,040
Within 90 days [member]
Disclosure of financial liabilities [Line Items]
Trade and bills payable	3,622	3,594
91 to 180 days [member]
Disclosure of financial liabilities [Line Items]
Trade and bills payable	52	49
181 to 365 days [member]
Disclosure of financial liabilities [Line Items]
Trade and bills payable	94	157
1 to 2 years [member]
Disclosure of financial liabilities [Line Items]
Trade and bills payable	40	100
Over 2 years [member]
Disclosure of financial liabilities [Line Items]
Trade and bills payable	¥ 69	¥ 140

Trade and Bills Payable - Addit

Trade and Bills Payable - Additional Information (Detail) ¥ in Millions	Dec. 31, 2018CNY (¥)
Trade and other payables [abstract]
Bills payable	¥ 4

Contract Liabilities - Summary

Contract Liabilities - Summary Of Contract liabilities (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Contract liabilities [abstract]
Sales in advance of carriage	¥ 8,754	¥ 7,638
Frequent flyer program	2,057	2,046
Advance from customers	866	712
Contract liabilities	11,677	10,396
Current portion	10,178	8,811
Non-current portion	¥ 1,499	¥ 1,585

Other Payables and Accruals - S

Other Payables and Accruals - Summary of Other Payables and Accruals (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Trade and other payables [abstract]
Salaries, wages and benefits	¥ 2,794	¥ 2,854
Take-off and landing charges	3,052	2,828
Fuel cost	1,109	1,225
Expenses related to aircraft overhaul conducted	1,810	1,324
Deposits from customers	18	6
Duties and levies payable	1,983	1,792
Food and beverages	253	349
Payments on system services	879	650
Lease rentals of property, plant and equipment	515	411
Other accrued operating expenses	991	701
Payable for purchase of property, plant and equipment	3,454	2,783
Interest payable	1,249	1,189
Pending output value added tax	412	378
Deposits received from ticket sales agents	507	502
Other deposits	570	576
Current portion of other long-term liabilities (note 42)	294	234
Staff housing allowance	224	265
Amounts due to related parties (note 49(c)(ii))	383	1,093
Current portion of post-retirement benefit obligations (note 41(b))	165	168
Others	1,940	1,815
Other payables and accruals	¥ 22,602	¥ 21,143

Obligations Under Finance Lea_3

Obligations Under Finance Leases - Additional Information (Detail)	Dec. 31, 2018Aircraft
Aircraft [member] | Finance Lease [Member]
Disclosure of finance lease and operating lease by lessee [Line items]
Number of aircrafts	260

Obligations Under Finance Lea_4

Obligations Under Finance Leases - Summary of Future Minimum Lease Payments (Including Interest), and Present Value of Minimum Lease Payments Under Finance Leases (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of finance lease and operating lease by lessee [Line items]
Minimum lease payments		¥ 90,980
Present values of minimum lease payments	¥ 79,006
Minimum lease payments, Less: amount repayable within one year		(9,364)
Minimum lease payments, non-current portion		68,063
Less than 1 year [member]
Disclosure of finance lease and operating lease by lessee [Line items]
Minimum lease payments		11,974
1 to 2 years [member]
Disclosure of finance lease and operating lease by lessee [Line items]
Minimum lease payments		12,014
In the third to fifth years, inclusive [member]
Disclosure of finance lease and operating lease by lessee [Line items]
Minimum lease payments		30,018
Over 5 years [member]
Disclosure of finance lease and operating lease by lessee [Line items]
Minimum lease payments		¥ 36,974

Borrowings - Summary of Borrowi

Borrowings - Summary of Borrowings (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Long-term bank borrowings - secured	¥ 2,995	¥ 3,934
Long-term bank borrowings - unsecured	828	4,556
Guaranteed bonds	12,784	13,377
Unsecured bonds	9,997	4,000
Total non-current borrowings	26,604	25,867
Current portion of long-term bank borrowings - secured	939	997
Current portion of long-term bank borrowings - unsecured	1,009	76
Current portion of guaranteed bonds (note (b))	2,585	732
Current portion of unsecured bonds (note (b))	0	4,834
Short-term bank borrowings - unsecured	2,200	8,120
Short-term debentures	18,500	14,500
Current portion of long-term bank borrowings	25,233	29,259
Total borrowings	51,837	55,126
Total borrowings	51,837	55,126
Less than 1 year [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	25,233	29,259
Total borrowings	25,233	29,259
1 to 2 years [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	8,104	7,469
Total borrowings	8,104	7,469
In the third to fifth years, inclusive [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	14,821	14,258
Total borrowings	14,821	14,258
Over 5 years [member]
Disclosure of detailed information about borrowings [line items]
Total borrowings	3,679	4,140
Total borrowings	¥ 3,679	¥ 4,140

Borrowings - Summary of Borro_2

Borrowings - Summary of Borrowings (Parenthetical) (Detail) ¥ in Millions, $ in Millions, ₩ in Billions, ¥ in Billions

Mar. 18, 2023CNY (¥)

Dec. 06, 2019KRW (₩)

Nov. 26, 2019CNY (¥)

Nov. 15, 2019CNY (¥)

Oct. 25, 2019CNY (¥)

Aug. 19, 2019CNY (¥)

Jul. 03, 2019CNY (¥)

Jun. 13, 2019CNY (¥)

May 29, 2019CNY (¥)

Mar. 07, 2019CNY (¥)

Mar. 16, 2018JPY (¥)

Nov. 16, 2017SGD ($)

Oct. 24, 2016CNY (¥)

Jul. 14, 2016CNY (¥)

Dec. 31, 2019CNY (¥)

Dec. 09, 2019CNY (¥)

Dec. 31, 2018CNY (¥)

Disclosure of detailed information about borrowings [line items]

Carrying amount of related aircraft and buildings pledged as security

¥ 7,243

¥ 8,391

Guaranteed bonds [member]

Disclosure of detailed information about borrowings [line items]

Term of borrowing

ten-year

Principal amount of borrowing

¥ 4.8

Interest rate of borrowing

5.05%

Medium-term bonds [member]

Disclosure of detailed information about borrowings [line items]

Term of borrowing

three-year

five-year

Principal amount of borrowing

¥ 3

¥ 4

Interest rate of borrowing

3.70%

3.39%

Corporate bonds [member]

Disclosure of detailed information about borrowings [line items]

Term of borrowing

three-year

five-year

three-year

ten-year

Principal amount of borrowing

₩ 300

¥ 3,000

$ 500

¥ 3,000

Interest rate of borrowing

2.40%

3.60%

2.80%

Corporate bonds one [member]

Disclosure of detailed information about borrowings [line items]

Principal amount of borrowing

¥ 1,500

Interest rate of borrowing

3.03%

Corporate bonds two [member]

Disclosure of detailed information about borrowings [line items]

Principal amount of borrowing

¥ 1,500

Interest rate of borrowing

3.30%

Short-term debentures [member]

Disclosure of detailed information about borrowings [line items]

Term of borrowing

177 days

270 days

179 days

267 days

266 days

267 days

Principal amount of borrowing

¥ 2

¥ 3

¥ 3

¥ 3

¥ 3

¥ 2

¥ 2,500

Interest rate of borrowing

1.70%

2.00%

2.00%

2.98%

3.15%

3.10%

2.00%

First series of JPY- denominated credit enhanced bonds [member]

Disclosure of detailed information about borrowings [line items]

Term of borrowing

three-year

Principal amount of borrowing

¥ 10

Interest rate of borrowing

0.33%

Second series of JPY- denominated credit enhanced bonds [member]

Disclosure of detailed information about borrowings [line items]

Term of borrowing

three-year

Principal amount of borrowing

¥ 20

Interest rate of borrowing

0.64%

Third series of JPY- denominated credit enhanced bonds [member]

Disclosure of detailed information about borrowings [line items]

Term of borrowing

three-year

Principal amount of borrowing

¥ 20

Interest rate of borrowing

0.64%

Borrowings - Summary of Long-te

Borrowings - Summary of Long-term Borrowings and Bonds (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	¥ 31,137	¥ 32,506
Long-term bank borrowings [member] | RMB [member]
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	1,828	4,528
Long-term bank borrowings [member] | USD [member]
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	870	1,469
Long-term bank borrowings [member] | EUR [member]
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	3,073	3,566
Guaranteed bonds [member] | RMB [member]
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	7,796	7,795
Guaranteed bonds [member] | SGD [member]
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	2,585	2,498
Guaranteed bonds [member] | JPY [Member]
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	3,197	3,084
Guaranteed bonds [member] | KRW [member]
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	1,791	732
Unsecured bonds [member] | RMB [member]
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	9,997	8,500
Unsecured bonds [member] | KRW [member]
Disclosure of detailed information about borrowings [line items]
Long-term borrowings	¥ 0	¥ 334

Borrowings - Summary of Long-_2

Borrowings - Summary of Long-term Borrowings and Bonds (Parenthetical) (Detail)	Mar. 18, 2023	Dec. 31, 2019	Dec. 31, 2018
Long-term bank borrowings [member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		3.92%	3.48%
Long-term bank borrowings [member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		2.65%	3.10%
Long-term bank borrowings [member] | RMB [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		2024
Long-term bank borrowings [member] | USD [member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate basis		6-month libor +0.55%	6-month libor +0.55%
Borrowings interest rate		0.70%	0.55%
Long-term bank borrowings [member] | USD [member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate basis		6-month libor +2.85%	6-month libor +2.85%
Borrowings interest rate		1.65%	2.85%
Long-term bank borrowings [member] | EUR [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate basis		3 months Euribor+0.5%	3 months Euribor+0.5%
Borrowings interest rate basis adjustment		0.50%	0.50%
Borrowings interest rate		2026
Guaranteed bonds [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate	5.05%
Borrowings interest rate	ten-year
Guaranteed bonds [member] | RMB [member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		3.03%	3.03%
Guaranteed bonds [member] | RMB [member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		5.05%	5.05%
Guaranteed bonds [member] | SGD [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		2.80%
Borrowings interest rate		2020
Guaranteed bonds [member] | JPY [Member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		2021
Guaranteed bonds [member] | JPY [Member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		0.33%	0.33%
Guaranteed bonds [member] | JPY [Member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		0.64%	0.64%
Guaranteed bonds [member] | KRW [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		2.40%	2.05%
Borrowings interest rate		2022
Unsecured bonds [member] | RMB [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		2024
Unsecured bonds [member] | RMB [member] | Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		3.39%	3.00%
Unsecured bonds [member] | RMB [member] | Top of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		3.70%	3.39%
Unsecured bonds [member] | KRW [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		2.85%	2.85%
Borrowings interest rate		2019

Borrowings - Additional Informa

Borrowings - Additional Information (Detail) - Short-term borrowings [member]	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate	3.30%
Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		2.97%
Top of range [member]
Disclosure of detailed information about borrowings [line items]
Borrowings interest rate		4.48%

Provision For Lease Return Co_3

Provision For Lease Return Costs For Aircraft And Engines - Summary of Provision for Return Condition Checks for Aircraft Under Operating Leases (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of provision for return condition checks for aircraft under operating leases [Line Items]
Beginning balance	¥ 2,906	¥ 3,019
Accrual	702	402
Utilization	(84)	(515)
Ending balance	7,178	2,906
Less: current portion	(519)	(145)
Non-current portion	6,659	2,761
Increase (decrease) due to application of IFRS 16 [member]
Disclosure of provision for return condition checks for aircraft under operating leases [Line Items]
Effect of adoption IFRS16	3,654	0
Previously stated [member]
Disclosure of provision for return condition checks for aircraft under operating leases [Line Items]
Beginning balance	¥ 2,906	3,019
Ending balance		¥ 2,906

Post-Retirement Benefit Oblig_3

Post-Retirement Benefit Obligations - Summary of Post-retirement Benefit Obligations Recognized in Consolidated Statement of Financial Position (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [abstract]
Post-retirement benefit obligations	¥ 2,584	¥ 2,712
Less: current portion	165	168
Non-current portion	¥ 2,419	¥ 2,544

Post-Retirement Benefit Oblig_4

Post-Retirement Benefit Obligations - Summary of Principal Actuarial Assumptions Utilized (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [abstract]
Discount rates for post-retirement benefits	3.40%	3.50%
Mortality rate	China Insurance Life Mortality Table (2010-2013). CL5 for Male and CL6 for Female	China Insurance Life Mortality Table (2010-2013). CL5 for Male and CL6 for Female
Annual increase rate of post-retirement medical expenses	6.50%	6.50%
Inflation rate of pension benefits	2.50%	2.50%

Post-Retirement Benefit Oblig_5

Post-Retirement Benefit Obligations - Summary of Quantitative Sensitivity Analysis for Significant Assumptions (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Discount rate for post-retirement benefits [member]
Disclosure of sensitivity analysis for actuarial assumptions [Line items]
Increase in rate %	0.25%	0.25%
Increase/ (decrease) in post-retirement benefit obligations	¥ (74)	¥ (80)
Decrease in rate %	0.25%	0.25%
Increase/ (decrease) in post-retirement benefit obligations	¥ 77	¥ 84
Annual increase rate of pension benefits [member]
Disclosure of sensitivity analysis for actuarial assumptions [Line items]
Increase in rate %	1.00%	1.00%
Increase/ (decrease) in post-retirement benefit obligations	¥ 260	¥ 288
Decrease in rate %	1.00%	1.00%
Increase/ (decrease) in post-retirement benefit obligations	¥ (222)	¥ (244)
Annual increase rate of medical expenses [member]
Disclosure of sensitivity analysis for actuarial assumptions [Line items]
Increase in rate %	1.00%	1.00%
Increase/ (decrease) in post-retirement benefit obligations	¥ 36	¥ 41
Decrease in rate %	1.00%	1.00%
Increase/ (decrease) in post-retirement benefit obligations	¥ (30)	¥ (34)

Post-Retirement Benefit Oblig_6

Post-Retirement Benefit Obligations - Summary of Expected Contributions of Post-retirement Benefit Obligations (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [Line Items]
Expected payments	¥ 4,169	¥ 4,489
Less than 1 year [member]
Disclosure of defined benefit plans [Line Items]
Expected payments	165	168
2 to 5 years [member]
Disclosure of defined benefit plans [Line Items]
Expected payments	661	678
Between 6 and 10 years [member]
Disclosure of defined benefit plans [Line Items]
Expected payments	809	841
Over 10 years [member]
Disclosure of defined benefit plans [Line Items]
Expected payments	¥ 2,534	¥ 2,802

Post-Retirement Benefit Oblig_7

Post-Retirement Benefit Obligations - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of defined benefit plans [abstract]
Average duration of the post-retirement benefit obligations	13 years	13 years

Post-Retirement Benefit Oblig_8

Post-Retirement Benefit Obligations - Summary of Movements in Post-retirement Benefit Obligations (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of movements in defined benefit liability [abstract]
Beginning balance	¥ 2,712	¥ 2,670
Pension cost charged to profit or loss, Net interest	92	106	¥ 98
Pension cost charged to profit or loss, Sub-total included in profit or loss	92	106
Remeasurement (gains)/losses in other comprehensive income, Actuarial changes arising from changes in financial assumptions	30	184
Remeasurement (gains)/losses in other comprehensive income, Actuarial changes arising from changes in demographic assumptions	(70)	(69)
Remeasurement (gains)/losses in other comprehensive income, Sub-total included in other comprehensive income	(40)	115
Benefit settled	(180)	(179)
Ending balance	¥ 2,584	¥ 2,712	¥ 2,670

Other Long-term Liabilities - S

Other Long-term Liabilities - Summary of Other Long-term Liabilities (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Subclassifications of assets, liabilities and equities [abstract]
Long-term duties and levies payable relating to leases	¥ 1,487	¥ 1,398
Deferred gains in sale and leaseback transactions	0	1,115
Deferred gains relating to government grants	152	179
Provision for early retirement benefit obligations and other benefit obligations	295	324
Other long-term payables	638	666
Other long-term liabilities	2,572	3,682
Less: current portion included in other payables and accruals (note 37)	(294)	(234)
Non-current portion	¥ 2,278	¥ 3,448

Share Capital - Summary of Shar

Share Capital - Summary of Share Capital (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of classes of share capital [Line items]
Share capital	¥ 16,379	¥ 14,467
A shares [member]
Disclosure of classes of share capital [Line items]
Share capital	11,202	9,808
A shares [member] | Tradable shares with trading moratorium [member]
Disclosure of classes of share capital [Line items]
Share capital	1,394	0
A shares [member] | Tradable shares without trading moratorium [member]
Disclosure of classes of share capital [Line items]
Share capital	9,808	9,808
H shares [member]
Disclosure of classes of share capital [Line items]
Share capital	5,177	4,659
H shares [member] | Tradable shares with trading moratorium [member]
Disclosure of classes of share capital [Line items]
Share capital	518	0
H shares [member] | Tradable shares without trading moratorium [member]
Disclosure of classes of share capital [Line items]
Share capital	¥ 4,659	¥ 4,659

Share Capital - Summary of Sh_2

Share Capital - Summary of Share Capital (Parenthetical) (Detail)	Dec. 31, 2019¥ / shares
Disclosure of classes of share capital [abstract]
Par value per share	¥ 1

Share Capital - Summary of Move

Share Capital - Summary of Movements in Share Capital (Detail) shares in Millions	12 Months Ended
	Dec. 31, 2019shares
Disclosure of classes of share capital [abstract]
Beginning balance	14,467
Issue of shares (Note(a))	1,912
Ending balance	16,379

Share Capital - Summary of Mo_2

Share Capital - Summary of Movements in Share Capital (Parenthetical) (Detail) - CNY (¥) ¥ in Millions, shares in Millions	Aug. 30, 2019	Aug. 29, 2019	Dec. 31, 2019
Disclosure of classes of share capital [Line items]
Proceeds from issue of shares			¥ 9,442
A shares [member] | Shanghai Juneyao Airlines Co., Ltd [member]
Disclosure of classes of share capital [Line items]
Number Of Shares Issued	1,394
Proceeds from issue of shares	¥ 7,440
H shares [member] | Shanghai Juneyao Airlines Hong Kong Co.,Ltd [member]
Disclosure of classes of share capital [Line items]
Number Of Shares Issued		518
Proceeds from issue of shares		¥ 2,002

Reserves - Summary of Reserves

Reserves - Summary of Reserves (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of reserves within equity [Line Items]
Beginning balance	¥ 61,601	¥ 58,778	¥ 52,366
Unrealized gains on cash flow hedges (Note 24)	(110)	43	35
Fair value changes of available-for-sale investments held by an associate	7	(24)
Actuarial gains (losses) on post-retirement benefit obligations	40	(115)	124
Profit for the year	3,480	2,930	6,810
Issue of shares	9,442
Ending balance	72,646	61,601	58,778
Share premium [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	29,540	29,540
Unrealized gains on cash flow hedges (Note 24)	0
Fair value movements in equity investments designated at fair value through other comprehensive income	0
Fair value changes of available-for-sale investments held by an associate	0
Actuarial gains (losses) on post-retirement benefit obligations	0
Transfer from retained profits	0
Profit for the year	0
Final dividend	0
Issue of shares	7,530
Ending balance	37,070	29,540	29,540
Share premium [member] | Previously stated [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	29,540
Ending balance		29,540
Capital reserve [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	(778)	(778)
Unrealized gains on cash flow hedges (Note 24)	0
Fair value movements in equity investments designated at fair value through other comprehensive income	0
Fair value changes of available-for-sale investments held by an associate	0
Actuarial gains (losses) on post-retirement benefit obligations	0
Transfer from retained profits	0
Profit for the year	0
Final dividend	0
Issue of shares	0
Others	11
Ending balance	(767)	(778)	(778)
Capital reserve [member] | Previously stated [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	(778)
Ending balance		(778)
Hedging reserve [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	134	91
Unrealized gains on cash flow hedges (Note 24)	(110)	43
Fair value movements in equity investments designated at fair value through other comprehensive income	0
Fair value changes of available-for-sale investments held by an associate	0
Actuarial gains (losses) on post-retirement benefit obligations	0
Transfer from retained profits	0
Profit for the year	0
Final dividend	0
Ending balance	24	134	91
Hedging reserve [member] | Previously stated [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	134
Ending balance		134
Statutory reserve [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	570	540
Unrealized gains on cash flow hedges (Note 24)	0
Fair value movements in equity investments designated at fair value through other comprehensive income	0
Fair value changes of available-for-sale investments held by an associate	0
Actuarial gains (losses) on post-retirement benefit obligations	0
Transfer from retained profits	212	30
Profit for the year	0
Final dividend	0
Ending balance	782	570	540
Statutory reserve [member] | Previously stated [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	570
Ending balance		570
Other reserves [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	(2,421)	(2,038)
Unrealized gains on cash flow hedges (Note 24)	0
Fair value movements in equity investments designated at fair value through other comprehensive income	13	(248)
Fair value changes of available-for-sale investments held by an associate	7	(24)
Actuarial gains (losses) on post-retirement benefit obligations	39	(111)
Transfer from retained profits	0
Profit for the year	0
Final dividend	0
Ending balance	(2,362)	(2,421)	(2,038)
Other reserves [member] | Previously stated [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	(2,421)
Ending balance		(2,421)
Retained Profits [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	16,496	14,205	8,784
Unrealized gains on cash flow hedges (Note 24)	0
Fair value movements in equity investments designated at fair value through other comprehensive income	0
Fair value changes of available-for-sale investments held by an associate	0
Actuarial gains (losses) on post-retirement benefit obligations	0
Transfer from retained profits	(212)	(30)
Profit for the year	3,192	2,698	6,342
Final dividend	0	(738)
Others	1
Ending balance	17,882	16,496	14,205
Retained Profits [member] | Previously stated [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	16,496
Ending balance		16,496
Retained Profits [member] | Increase (decrease) due to application of IFRS 16 [member]
Disclosure of reserves within equity [Line Items]
Effect of adoption of IFRS	(1,595)
Retained earnings and other reserves [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	41,946	41,921
Unrealized gains on cash flow hedges (Note 24)	(110)	43
Fair value movements in equity investments designated at fair value through other comprehensive income	13	(248)
Fair value changes of available-for-sale investments held by an associate	7	(24)
Actuarial gains (losses) on post-retirement benefit obligations	39	(111)
Transfer from retained profits	0
Profit for the year	3,192	2,698
Final dividend		(738)
Issue of shares	7,530
Others	12
Ending balance	52,629	41,946	¥ 41,921
Retained earnings and other reserves [member] | Previously stated [member]
Disclosure of reserves within equity [Line Items]
Beginning balance	43,541
Ending balance		¥ 43,541
Retained earnings and other reserves [member] | Increase (decrease) due to application of IFRS 16 [member]
Disclosure of reserves within equity [Line Items]
Effect of adoption of IFRS	¥ (1,595)

Partly-owned Subsidiaries wit_3

Partly-owned Subsidiaries with Material Non-controlling Interests - Summary of Subsidiaries that have Material Non-controlling Interests (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of subsidiaries [Line Items]
Profit for the year allocated to non-controlling interests	¥ 288	¥ 232	¥ 468
Accumulated balances of non-controlling interests at the reporting date	¥ 3,638	¥ 3,593
China Eastern Airlines Jiangsu Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity interest held by non-controlling interests	37.44%	37.44%
Profit for the year allocated to non-controlling interests	¥ 115	¥ 114
Dividends paid to non-controlling interests	37	56
Accumulated balances of non-controlling interests at the reporting date	¥ 1,445	¥ 1,471
China Eastern Airlines Yunnan Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity interest held by non-controlling interests	9.64%	9.64%
Profit for the year allocated to non-controlling interests	¥ 50	¥ 33
Accumulated balances of non-controlling interests at the reporting date	¥ 704	¥ 674
China Eastern Airlines Wuhan Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Percentage of equity interest held by non-controlling interests	40.00%	40.00%
Profit for the year allocated to non-controlling interests	¥ 128	¥ 88
Dividends paid to non-controlling interests	45
Accumulated balances of non-controlling interests at the reporting date	¥ 1,511	¥ 1,483

Partly-owned Subsidiaries wit_4

Partly-owned Subsidiaries with Material Non-controlling Interests - Summary of Financial Information of Subsidiaries that have Material Non-controlling Interests (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of subsidiaries [Line Items]
Revenue	¥ 120,986	¥ 115,278	¥ 102,475
Total expenses	118,107	112,561	100,525
Profit for the year	3,480	2,930	6,810
Total comprehensive income for the year	3,433	2,587	7,094
Current assets	19,743	15,932
Non-current assets	265,442	223,085
Current liabilities	78,363	73,064
Non-current liabilities	134,176	104,352
Net cash flows from operating activities	28,972	22,338	19,572
Net cash flows used in investing activities	(4,899)	(12,780)	(21,312)
Net cash flows used in financing activities	(23,375)	(13,558)	¥ 4,708
China Eastern Airlines Jiangsu Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Revenue	9,774	9,313
Total expenses	9,466	9,008
Profit for the year	308	305
Total comprehensive income for the year	309	297
Current assets	1,116	1,338
Non-current assets	12,620	9,460
Current liabilities	2,486	2,116
Non-current liabilities	7,390	4,753
Net cash flows from operating activities	1,930	1,036
Net cash flows used in investing activities	(16)	(37)
Net cash flows used in financing activities	(1,874)	(991)
Net increase/ (decrease) in cash and cash equivalents	40	8
China Eastern Airlines Yunnan Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Revenue	11,634	10,523
Total expenses	11,110	10,183
Profit for the year	524	340
Total comprehensive income for the year	524	340
Current assets	575	379
Non-current assets	19,210	16,018
Current liabilities	3,623	3,213
Non-current liabilities	8,859	6,196
Net cash flows from operating activities	2,457	3,686
Net cash flows used in investing activities	(425)	(592)
Net cash flows used in financing activities	(2,031)	(3,099)
Net increase/ (decrease) in cash and cash equivalents	1	(5)
China Eastern Airlines Wuhan Co., Ltd. [member]
Disclosure of subsidiaries [Line Items]
Revenue	4,743	4,559
Total expenses	4,424	4,340
Profit for the year	319	219
Total comprehensive income for the year	328	217
Current assets	369	237
Non-current assets	7,917	7,048
Current liabilities	1,611	1,634
Non-current liabilities	2,897	1,944
Net cash flows from operating activities	885	775
Net cash flows used in investing activities	(222)	(534)
Net cash flows used in financing activities	(666)	(243)
Net increase/ (decrease) in cash and cash equivalents	¥ (3)	¥ (2)

Disposal of a Subsidiary - Addi

Disposal of a Subsidiary - Additional Information (Detail) - CNY (¥) ¥ in Millions	May 17, 2019	Mar. 19, 2019	Dec. 31, 2019
Disclosure of disposal of subsidiaries [line items]
Proceeds from issue of ordinary shares			¥ 9,442
Shanghai Airlines Tours [Member]
Disclosure of disposal of subsidiaries [line items]
Proceeds from issue of ordinary shares		¥ 251
Proportion of ownership interest in subsidiary	35.00%
Proportion of ownership interests held by non-controlling interests	65.00%

Disposal of a Subsidiary - Summ

Disposal of a Subsidiary - Summary of Disposal of a Subsidiary (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net assets disposed of:
Gain on disposal of a subsidiary	¥ 64	¥ 0	¥ 1,754
Satisfied By [Abstract]
Investments in associates	1,977	¥ 1,696	¥ 1,654
Shanghai Airlines Tours International (Group) Co., Ltd. [member]
Net assets disposed of:
Property, plant and equipment	26
Investments in associates	9
Right-of-use assets	10
Other non-current assets	3
Prepayments and other receivables	278
Restricted bank deposits and short-term bank deposits	251
Trade and notes receivables	115
Cash and cash equivalents	90
Trade and bills payables	(79)
Contract liabilities	(284)
Other payables and accruals	(378)
Lease liabilities	(10)
Net assets	31
Gain on disposal of a subsidiary	64
Satisfied By [Abstract]
Investments in associates	¥ 95

Disposal of a Subsidiary - Su_2

Disposal of a Subsidiary - Summary of Analysis of Net Inflow of Cash and Cash Equivalents in Respect of Disposal of a Subsidiary (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of subsidiaries [abstract]
Cash consideration	¥ 0
Cash and bank balances disposed of	90
Net outflow of cash and cash equivalents in respect of the disposal of a subsidiaryNet inflow of cash and cash equivalents in respect of the disposal of a subsidiary	¥ (90)	¥ (11)	¥ 1,897

Notes to the Consolidated Sta_3

Notes to the Consolidated Statement of Cash Flows - Summary of Notes to Statement of Consolidated Cash Flows (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of cash flows [abstract]
Profit before income tax	¥ 4,299	¥ 3,856	¥ 8,610
Adjustments for:
Depreciation of property, plant and equipment	9,078	14,616	13,367
Depreciation of right-of-use assets	12,298		45
Amortization of intangible assets	143	160	143
Depreciation of investment properties	25	26	12
Amortization of lease prepayments		43	45
Amortization of other non-current assets	536	468	402
Gains on disposal of property, plant and equipment	(22)	(267)	(13)
Gain on disposal of prepayments for land use rights		(210)	(5)
Gain on disposal of investment in a subsidiary	(64)	0	(1,754)
Gain on disposal of investment in an associate	0	(5)	(12)
Gain on disposal of available-for-sale investments			(4)
Dividend income from equity investments at fair value through other comprehensive income	(19)	(23)
Dividend income from available-for-sale investments			(33)
Dividend income from a financial asset at fair value through profit or loss	(3)	(6)
Share of results of associates	(265)	(170)	(202)
Share of results of joint ventures	(17)	(34)	(49)
Net foreign exchange loss/(gain)	890	1,983	(2,378)
(Gain)/loss on fair value changes of financial asset at fair value through profit or loss	(25)	27
(Gain)/loss on fair value changes of derivative financial instruments		(311)	311
Impairment charges	4	318	494
Impairment losses on financial assets, net	16	27	(3)
Interest income	(96)	(110)	(111)
Interest expense	5,169	3,727	3,184
Operating profit before working capital changes	32,043	24,115	22,004
Changes in working capital
Flight equipment spare parts	(457)	(66)	(109)
Trade and notes receivables	(275)	708	(500)
Prepayments and other receivables	(2,336)	(2,056)	(753)
Sales in advance of carriage			(569)
Contract liabilities	1,281	1,051
Restricted bank deposits and short-term bank deposits	9	35	(8)
Trade and bills payables	(163)	856	1,725
Other payables and accruals	1,459	36	340
Staff housing allowances		(36)	62
Other long-term liabilities	(1,916)	(525)	(728)
Post-retirement benefit obligations	(125)	42	(217)
Provision for lease return costs for aircraft and engines	617	(113)	(139)
Cash generated from operations	¥ 30,137	¥ 24,047	¥ 21,108

Notes to the Consolidated Sta_4

Notes to the Consolidated Statement of Cash Flows - Summary of Major Non-cash Transactions (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of cash flows [abstract]
Additions to right-of-use assets and lease liabilities	¥ 24,434
Finance Lease obligations incurred for acquisition of aircraft		¥ 7,945	¥ 6,865

Notes to the Consolidated Sta_5

Notes to the Consolidated Statement of Cash Flows - Summary of Changes in Liabilities Arising from Financing Activities (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Bank and other loans [member]
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Beginning balance	¥ 55,126	¥ 63,801
Changes from financing cash flows	(3,427)	(9,076)
Foreign exchange movement	139	401
Ending balance	51,838	55,126
Bank and other loans [member] | Previously stated [member]
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Beginning balance	55,126
Ending balance		55,126
Obligations Under Finance Leases [member]
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Beginning balance	77,427	66,868
Effect of adoption of IFRS 16	31,879
Changes from financing cash flows	(23,895)	(9,629)
Foreign exchange movement	851	1,419
Disposal of a subsidiary	(10)
New leases	24,023
New finance leases		18,769
Ending balance	110,275	77,427
Obligations Under Finance Leases [member] | Previously stated [member]
Disclosure of reconciliation of liabilities arising from financing activities [Line Items]
Beginning balance	¥ 77,427
Ending balance		¥ 77,427

Notes to the Consolidated Sta_6

Notes to the Consolidated Statement of Cash Flows - Disclosure Of Detailed Information About Cash Flow Information For Leases Explanatory (Detail) ¥ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)
Disclosure of reconciliation of liabilities arising from financing activities [abstract]
Within operating activities	¥ (631)
Within investing activities	(1,449)
Within financing activities	¥ (23,895)

Commitments - Additional Inform

Commitments - Additional Information (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Jan. 01, 2019
Disclosure of Capital Commitments [line items]
Short term lease commitments	¥ 83	¥ (206)
Not later than one year [member]
Disclosure of Capital Commitments [line items]
Future lease payments	62
Later than one year and not later than five years [member]
Disclosure of Capital Commitments [line items]
Future lease payments	¥ 16

Commitments - Summary of Capita

Commitments - Summary of Capital Commitments (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of capital commitments [Line Items]
Capital commitments	¥ 53,599	¥ 78,069
Aircraft, engines and flight equipment [member]
Disclosure of capital commitments [Line Items]
Capital commitments	47,822	70,998
Other property, plant and equipment [member]
Disclosure of capital commitments [Line Items]
Capital commitments	4,917	6,481
Investments [member]
Disclosure of capital commitments [Line Items]
Capital commitments	¥ 860	¥ 590

Commitments - Summary of Aged A

Commitments - Summary of Aged Analysis of Contracted Expenditures for Aircraft, Engines and Flight Equipment (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of capital commitments [Line Items]
Capital commitments	¥ 53,599	¥ 78,069
Aircraft [member]
Disclosure of capital commitments [Line Items]
Capital commitments	47,822	70,998
Aircraft [member] | Less than 1 year [member]
Disclosure of capital commitments [Line Items]
Capital commitments	18,388	29,187
Aircraft [member] | 1 to 2 years [member]
Disclosure of capital commitments [Line Items]
Capital commitments	12,442	24,735
Aircraft [member] | In the third year [member]
Disclosure of capital commitments [Line Items]
Capital commitments	11,956	11,809
Aircraft [member] | In the fourth year [member]
Disclosure of capital commitments [Line Items]
Capital commitments	3,892	4,674
Aircraft [member] | Over four years [member]
Disclosure of capital commitments [Line Items]
Capital commitments	¥ 1,144	¥ 593

Commitments - Summary of Future

Commitments - Summary of Future Minimum Lease Rentals Under Operating Leases (Detail) ¥ in Millions	Dec. 31, 2018CNY (¥)
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	¥ 37,278
Aircraft Engines and Flight Equipment under Operating Leases [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	36,571
Aircraft Engines and Flight Equipment under Operating Leases [member] | Less than 1 year [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	4,990
Aircraft Engines and Flight Equipment under Operating Leases [member] | 1 to 2 years [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	5,371
Aircraft Engines and Flight Equipment under Operating Leases [member] | In the third to fifth years, inclusive [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	12,041
Aircraft Engines and Flight Equipment under Operating Leases [member] | Over 5 years [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	14,169
Land and Buildings [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	707
Land and Buildings [member] | Less than 1 year [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	398
Land and Buildings [member] | 1 to 2 years [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	175
Land and Buildings [member] | In the third to fifth years, inclusive [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	59
Land and Buildings [member] | Over 5 years [member]
Disclosure of maturity analysis of operating lease payments [Line items]
Future minimum lease rentals under operating leases	¥ 75

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - CNY (¥) ¥ in Billions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
China Eastern Air Holding Company [member]
Disclosure of transactions between related parties [Line Items]
Percentage of shares owned by related party	30.97%	35.06%
Bonds guaranteed by CEA Holding	¥ 7.8	¥ 7.8
CES Global Holdings (Hong Kong) Limited [member]
Disclosure of transactions between related parties [Line Items]
Percentage of shares owned by related party	16.03%	18.15%
CES Finance Holding Co., Ltd. [member]
Disclosure of transactions between related parties [Line Items]
Percentage of shares owned by related party	2.79%	3.16%

Related Party Transactions - Su

Related Party Transactions - Summary of Nature of Related Parties (Detail)	12 Months Ended
	Dec. 31, 2019
Eastern Air Group Finance Company [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Associate of the Company
Eastern Aviation Import & Export Co., Ltd. [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Associate of the Company
Shanghai Pratt & Whitney Aircraft Engine Maintenance Co., Ltd. [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Associate of the Company
Eastern Aviation Advertising Service Co., Ltd. [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Associate of the Company
Shanghai Collins Aviation Maintenance Service Co., Ltd. [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Associate of the Company
CAE Melbourne Flight Training Pty Limited [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Joint venture of the Company
Shanghai Eastern Union Aviation Wheels and Brakes Maintenance Services Overhaul Engineering Co Ltd [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Joint venture of the Company
Shanghai Technologies Aerospace Co Ltd [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Joint venture of the Company
Eastern China Kaiya System Integration Co Ltd [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Joint venture of the Company
Shanghai Hute Aviation Technology Co Ltd [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Joint venture of the Company
CEA Development Co., Ltd. and its subsidiaries [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Controlled by the same parent company
China Eastern Air Catering Investment Co., Ltd. [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Controlled by the same parent company
CES International Financial Leasing Corporation Limited [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Controlled by the same parent company
Shanghai Eastern Airlines Investment Co., Ltd. [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Controlled by the same parent company
Shanghai Eastern Airlines Logistics Co., Ltd. and its Subsidiaries [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Controlled by the same parent company
Eastern Airlines Industry Investment Company Limited [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Controlled by the same parent company
CES Finance Holding Co Limited [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Controlled by the same parent company and a substantial shareholder of the Company
CES Global Holdings (Hong Kong) Limited [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Controlled by the same parent company and a substantial shareholder of the Company
Hong Kong Securities Clearing Company Ltd [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	A substantial shareholder of the Company
Travelsky technology limited [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	A director and vice president of the Company is a director of Travelsky
China Aviation Supplies Holding Company and its Subsidiaries [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	A director and vice president of the Company is a director of CASC
Air France-KLM Group [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	A director and vice president of the Company is a director of AFK
Shanghai Airlines Tours International (Group) Co., Ltd. [member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Associate of the Company
Beijing Xinghang Aviation Property Co Ltd [Member]
Disclosure of nature of related parties [line items]
Relationship with the Group	Associate of the Company
Juneyao Airlines Co Ltd [Member]
Disclosure of nature of related parties [line items]
Relationship with the Group	A director and vice president of the Company is a director of Juneyao Air

Related Party Transactions - _2

Related Party Transactions - Summary of Related Party Transactions (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	¥ 0	¥ 0
CEA Development Co., Ltd. and its subsidiaries [member] | Payments on food and beverages [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)		78
CEA Development Co., Ltd. and its subsidiaries [member] | Equipment Maintenance Fee [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	119	71
CEA Development Co., Ltd. and its subsidiaries [member] | Automobile Maintenance Service, Aircraft Maintenance, Providing Transportation Automobile and Other Products [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	13	13
CEA Development Co., Ltd. and its subsidiaries [member] | Property Management and Green Maintenance Expenses [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	205	102
CEA Development Co., Ltd. and its subsidiaries [member] | Payments on hotel accommodation service [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	134	127
Eastern Aviation Import & Export Co., Ltd. [member] | Payments on food and beverages [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	56	60
Eastern Aviation Import & Export Co., Ltd. [member] | Handling Charges for Purchase of Aircraft, Flight Equipment, Flight Equipment Spare Parts, Other Property, Plant and Flight Equipment and Repairs for Aircraft and Engines [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	142	165
Eastern Aviation Import & Export Co., Ltd. [member] | Payments on logistics services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	49	142
Shanghai Pratt & Whitney Aircraft Engine Maintenance Co., Ltd. [member] | Repairs and Maintenance Expense for Aircraft and Engines [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	1,762	2,394
Shanghai Technologies Aerospace Co., Ltd. [member] | Repairs and Maintenance Expense for Aircraft and Engines [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	221	344
Wheels & Brakes [member] | Repairs and Maintenance Expense for Aircraft and Engines [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	144	129
Shanghai Hute Aviation Technology Co., Ltd. [member] | Repairs and Maintenance Expense for Aircraft and Engines [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	88	74
Eastern Aviation Advertising Service Co., Ltd. [member] | Payments on cabin cleaning services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	22	20
Eastern Aviation Advertising Service Co., Ltd. [member] | Advertising Expense [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	29	19
Eastern Aviation Advertising Service Co., Ltd. [member] | Media Royalty Fee [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	15	14
China Kaiya [member] | Payments on system services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	16	21
Shanghai Collins Aviation Maintenance Service Co., Ltd. [member] | Equipment Maintenance Fee [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	45	60
Travelsky technology limited [member] | Civil Aviation Information Network Services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	753	646
CASC [member] | Flight Equipment Spare Parts Maintenance [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	143	189
CAE Melbourne Flight Training Pty Ltd. [member] | Flight Training Fee [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	70	75
AFK [member] | Payments on Aviation Transportation Cooperation and Support Services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	537	425
AFK [member] | Media Royalty Fee [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	593	728
AFK [member] | Flight equipment spare parts maintenance and support services [Member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	19	2
China Eastern Air Holding Company [member] | Payments on food and beverages [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	1,471	1,317
China Eastern Air Holding Company [member] | Payments on Operating Leases [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	40	33
Eastern Logistics [member] | Payments on logistics services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	53
Eastern Logistics [member] | Bellyhold space management [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)		32
Eastern Logistics [member] | Bellyhold Space Operation Cost [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	310	246
Eastern Logistics [member] | Transfer of the Pilots [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	11	24
Eastern Logistics [member] | Cargo Terminal Business Support Services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	481	348
Eastern Logistics [member] | Bellyhold Container Management [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	13	11
Eastern Logistics [member] | Contractual revenue from Bellyhold Space [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	3,826	2,795
Eastern Logistics [member] | Freight logistics support services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	135	126
Eastern Logistics [member] | Software system and support services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	4	42
Eastern Logistics [member] | Transfer of freight depots and equipment [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)		28
Eastern Air Finance [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	5
Eastern Air Finance [member] | Interest Expense on Loans [Member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	27	13
Eastern Air Finance [member] | Interest Income on Deposits [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	15	26
Juneyao Air [Member] | Payments on Aviation Transportation Cooperation and Support Services [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	2
Juneyao Air [Member] | Media Royalty Fee [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	11
Eastern Investments [Member] | Payments on Operating Leases [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	83
Eastern Investments [Member] | Payments on construction and and management agent [Member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	14	18
Shanghai Airlines Co., Ltd. [member] | Payments on hotel accommodation service [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	23
XIESA [Member] | Repairs and Maintenance Expense for Aircraft and Engines [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	2
CES Lease Company [Member] | Payments on Operating Leases [member]
Disclosure of transactions between related parties [Line Items]
Income or receipts/(expense or payments)	¥ 5,779	¥ 3,984

Related Party Transactions - _3

Related Party Transactions - Summary of Balances with Related Parties (Detail) ¥ in Millions	Dec. 31, 2019CNY (¥)	Dec. 31, 2019USD ($)	Dec. 31, 2018CNY (¥)
Disclosure of balances between related parties [line items]
Trade and notes receivables	¥ 334		¥ 1
Trade and bills payables	1,661		1,219
Amounts due from related parties	776		278
Contract liabilities	11,677		10,396
Other payables and accruals	383		1,093
Long-term borrowings (included in borrowings) CEA Holding	26,604		25,867
Shanghai Eastern Airlines Logistics Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Trade and notes receivables	295
Contract liabilities			6
China Eastern Air Catering Investment Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Trade and notes receivables	1		1
Trade and bills payables	390		272
Amounts due from related parties	6		16
Other payables and accruals	2		1
Eastern Aviation Import & Export Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Trade and bills payables	421		229
Amounts due from related parties	272		133
Other payables and accruals	5		129
Shanghai Technologies Aerospace Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Trade and bills payables	104		141
Amounts due from related parties	7		31
Eastern Aviation Advertising Service Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Amounts due from related parties	28		28
Other payables and accruals			3
CEA Development Co., Ltd. and its subsidiaries [member]
Disclosure of balances between related parties [line items]
Trade and bills payables	76		15
Amounts due from related parties	7		7
Other payables and accruals	1		49
China Eastern Air Holding Company [member]
Disclosure of balances between related parties [line items]
Amounts due from related parties			25
Other payables and accruals	¥ 111
Long-term borrowings (included in borrowings) CEA Holding	3.86%	3.86%
Long-term borrowings (included in borrowings) CEA Holding	¥ 828
CASC [member]
Disclosure of balances between related parties [line items]
Trade and notes receivables	23
Trade and bills payables	17		18
Amounts due from related parties	13		12
Other payables and accruals	2		2
CES Global [member]
Disclosure of balances between related parties [line items]
Amounts due from related parties			3
TravelSky [member]
Disclosure of balances between related parties [line items]
Amounts due from related parties	7
Shanghai Eastern Airlines Tour [Member]
Disclosure of balances between related parties [line items]
Trade and bills payables | $		$ 3
Beijing Aviation Property [Member]
Disclosure of balances between related parties [line items]
Trade and bills payables | $		101
Others [member]
Disclosure of balances between related parties [line items]
Trade and notes receivables	5
Trade and bills payables	7		1
Amounts due from related parties	21		23
Other payables and accruals	8		3
Shanghai Collins Aviation Maintenance Service Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Trade and bills payables	7		1
China Eastern Air Holding Company [member]
Disclosure of balances between related parties [line items]
Trade and bills payables	18		13
Other payables and accruals			¥ 104
Long-term borrowings (included in borrowings) CEA Holding			3.89%
Long-term borrowings (included in borrowings) CEA Holding			¥ 528
Shanghai Hute Aviation Technology Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Trade and bills payables	13		15
Shanghai Pratt & Whitney Aircraft Engine Maintenance Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Trade and bills payables | $		$ 465
Other payables and accruals			315
China Kaiya [member]
Disclosure of balances between related parties [line items]
Other payables and accruals			2
Shanghai Eastern Union Aviation Wheels & Brakes Maintenance Services Overhaul Engineering Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Trade and bills payables	17		14
Travelsky technology limited [member]
Disclosure of balances between related parties [line items]
Trade and bills payables	22		333
CAE Melbourne Flight Training Pty Ltd. [member]
Disclosure of balances between related parties [line items]
Other payables and accruals			311
Shanghai Eastern Airlines Investment Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Other payables and accruals	86		10
CES International Financial Leasing Corporation Limited [member]
Disclosure of balances between related parties [line items]
Other payables and accruals	166		164
Obligations under finance leases	¥ 42,848		¥ 30,190
Eastern Air Group Finance Co., Ltd. [member]
Disclosure of balances between related parties [line items]
Short-term deposits (included in cash and cash equivalents) Eastern Air Finance Company	0.35%	0.35%	0.35%
Short-term deposits (included in cash and cash equivalents) Eastern Air Finance Company	¥ 1,122		¥ 282
CAE Melbourne [member]
Disclosure of balances between related parties [line items]
Percentage of loan to joint venture	3.74%	3.74%	3.74%
Loan to joint venture	¥ 15		¥ 20
Juneyao Air [Member]
Disclosure of balances between related parties [line items]
Trade and notes receivables	10
Amounts due from related parties	10
Eastern Logistics [member]
Disclosure of balances between related parties [line items]
Trade and bills payables			¥ 167
XIESA [Member]
Disclosure of balances between related parties [line items]
Other payables and accruals	¥ 2
Eastern Air Finance Company [Member]
Disclosure of balances between related parties [line items]
Other payables and accruals | $		$ 405

Related Party Transactions - _4

Related Party Transactions - Summary of Key Management Compensation (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of transactions between related parties [Line Items]
Compensation paid or payable to key management for employee services	¥ 9	¥ 10
Directors and Supervisors [member]
Disclosure of transactions between related parties [Line Items]
Compensation paid or payable to key management for employee services	1	2
Senior Management [member]
Disclosure of transactions between related parties [Line Items]
Compensation paid or payable to key management for employee services	¥ 8	¥ 8

Financial Instruments by Cate_3

Financial Instruments by Category (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [Line Items]
Financial assets at fair value through profit or loss	¥ 121	¥ 96
Financial Liabilities at amortised cost	188,591	157,736
Financial assets at fair value through other comprehensive income	1,274	1,247
Derivatives used for hedging	23	29
Financial assets at amortized cost	14,964	5,113
Derivatives used for hedging	70	223
Total	16,429	6,679
Total	188,614	157,765
Equity investments designated at fair value through other comprehensive income [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial assets at fair value through other comprehensive income	1,274	1,247
Total	1,274	1,247
Derivative financial assets instruments [member]
Disclosure of detailed information about financial instruments [Line Items]
Derivatives used for hedging	70	223
Total	70	223
Financial assets included in other non-current assets [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial assets at amortized cost	180	190
Total	180	190
Trade and notes receivables [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial assets at amortized cost	1,717	1,436
Total	1,717	1,436
Financial asset at fair value through profit or loss [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial assets at fair value through profit or loss	121	96
Total	121	96
Financial assets included in prepayments and other receivables [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial assets at amortized cost	11,711	2,825
Total	11,711	2,825
Restricted bank deposits and short-term bank deposits [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial assets at amortized cost	6	16
Total	6	16
Cash and Cash Equivalent [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial assets at amortized cost	1,350	646
Total	1,350	646
Trade and bills payables [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial Liabilities at amortised cost	3,877	4,040
Total	3,877	4,040
Financial liabilities included in other payables and accruals [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial Liabilities at amortised cost	22,602	21,143
Total	22,602	21,143
Obligations Under Finance Leases [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial Liabilities at amortised cost		77,427
Total		77,427
Borrowings in financial liabilities [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial Liabilities at amortised cost	51,837	55,126
Total	51,837	55,126
Derivative financial liabilities instruments [member]
Disclosure of detailed information about financial instruments [Line Items]
Derivatives used for hedging	23	29
Total	23	¥ 29
Lease liabilities [member]
Disclosure of detailed information about financial instruments [Line Items]
Financial Liabilities at amortised cost	110,275
Total	¥ 110,275

Fair Value and Fair Value Hie_3

Fair Value and Fair Value Hierarchy of Financial Instruments - Summary of Financial Instruments Not Measured at Fair Value (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Equity investments designated at fair value through other comprehensive income	¥ 1,274	¥ 1,247
Financial asset at fair value through profit or loss	121	96
Derivative financial assets	70	223
Deposits relating to aircraft held under leases included in other non-current assets	156	177
Total	16,429	6,679
Derivative financial liabilities	23	29
Long-term borrowings	26,604	25,867
Lease liabilities	94,685
Obligations under finance leases		68,063
Total	188,614	157,765
Carrying amount [member] | Financial liabilities [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Derivative financial liabilities	23	29
Long-term borrowings	26,604	25,867
Lease liabilities	94,685
Obligations under finance leases		68,063
Total	121,312	93,959
Carrying amount [member] | Financial assets [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Equity investments designated at fair value through other comprehensive income	1,274	1,247
Financial asset at fair value through profit or loss	121	96
Derivative financial assets	70	223
Deposits relating to aircraft held under leases included in other non-current assets	156	177
Total	1,621	1,743
Not measured at fair value but for which fair values are disclosed [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Deposits relating to aircraft held under leases included in other non-current assets	148	154
Long-term borrowings	23,754	25,875
Obligations under finance leases	89,491	64,521
Total	113,393	90,396
Not measured at fair value but for which fair values are disclosed [member] | Financial liabilities [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Derivative financial liabilities	23	29
Long-term borrowings	23,754	25,875
Lease liabilities	89,491
Obligations under finance leases		64,521
Total	113,268	90,425
Not measured at fair value but for which fair values are disclosed [member] | Financial assets [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Equity investments designated at fair value through other comprehensive income	1,274	1,247
Financial asset at fair value through profit or loss	121	96
Derivative financial assets	70	223
Deposits relating to aircraft held under leases included in other non-current assets	148	154
Total	¥ 1,613	¥ 1,720

Fair Value and Fair Value Hie_4

Fair Value and Fair Value Hierarchy of Financial Instruments - Summary of Significant Unobservable Inputs to the Valuation of Financial Instruments Together with a Quantitative Sensitivity Analysis (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Valuation technique	Valuation multiples
Significant unobservable input	Discount for lack of marketability
Sensitivity of fair value to the input	1% (2018: 1%) increase/decrease in multiple would result in increase/ decrease in fair value by RMB11 million (2018: RMB11 million)
Bottom of range [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Range	20.00%	19.00%
Top of range [member]
Disclosure of significant unobservable inputs used in fair value measurement of equity [line items]
Range	35.00%	41.00%

Fair Value and Fair Value Hie_5

Fair Value and Fair Value Hierarchy of Financial Instruments - Summary of Fair Value Hierarchy of Assets and Liabilities Measured at Fair Value (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [Line Items]
Equity investments designated at fair value through other comprehensive income	¥ 1,274	¥ 1,247
Derivative financial instruments, assets	70	223
Financial asset at fair value through profit or loss	121	96
Total, assets	16,429	6,679
Derivative financial instruments, liabilities	23	29
Total, liabilities	188,614	157,765
Interest rate swaps [member]
Disclosure of detailed information about financial instruments [Line Items]
Derivative financial instruments, assets	27	223
Derivative financial instruments, liabilities	10
At fair value [member]
Disclosure of detailed information about financial instruments [Line Items]
Equity investments designated at fair value through other comprehensive income	1,274	1,247
Financial asset at fair value through profit or loss	121	96
Total, assets	1,465	1,566
Total, liabilities	23	29
At fair value [member] | Interest rate swaps [member]
Disclosure of detailed information about financial instruments [Line Items]
Derivative financial instruments, assets	70	223
At fair value [member] | Forward currency contracts [Member]
Disclosure of detailed information about financial instruments [Line Items]
Derivative financial instruments, liabilities	23	29
At fair value [member] | Quoted prices in active markets (Level 1) [member]
Disclosure of detailed information about financial instruments [Line Items]
Equity investments designated at fair value through other comprehensive income	496	510
Financial asset at fair value through profit or loss	121	96
Total, assets	617	606
At fair value [member] | Significant observable inputs (Level 2) [member]
Disclosure of detailed information about financial instruments [Line Items]
Total, assets	70	223
Total, liabilities	23	29
At fair value [member] | Significant observable inputs (Level 2) [member] | Interest rate swaps [member]
Disclosure of detailed information about financial instruments [Line Items]
Derivative financial instruments, assets	70	223
At fair value [member] | Significant observable inputs (Level 2) [member] | Forward currency contracts [Member]
Disclosure of detailed information about financial instruments [Line Items]
Derivative financial instruments, liabilities	23	29
At fair value [member] | Significant unobservable inputs (Level 3) [member]
Disclosure of detailed information about financial instruments [Line Items]
Equity investments designated at fair value through other comprehensive income	778	737
Total, assets	¥ 778	¥ 737

Fair Value and Fair Value Hie_6

Fair Value and Fair Value Hierarchy of Financial Instruments - Summary of Fair Value Hierarchy of Assets and Liabilities for which Fair Values are Disclosed (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [Line Items]
Deposits relating to aircraft held under leases included in other non-currentassets	¥ 156	¥ 177
Long-term bank borrowings	26,604	25,867
Obligations under finance leases		68,063
Total	188,614	157,765
Not measured at fair value but for which fair values are disclosed [member]
Disclosure of detailed information about financial instruments [Line Items]
Deposits relating to aircraft held under leases included in other non-currentassets	148	154
Long-term bank borrowings	23,754	25,875
Obligations under finance leases	89,491	64,521
Total	113,393	90,396
Not measured at fair value but for which fair values are disclosed [member] | Quoted prices in active markets (Level 1) [member]
Disclosure of detailed information about financial instruments [Line Items]
Long-term bank borrowings	2,897	2,861
Total	2,897	2,861
Not measured at fair value but for which fair values are disclosed [member] | Significant observable inputs (Level 2) [member]
Disclosure of detailed information about financial instruments [Line Items]
Deposits relating to aircraft held under leases included in other non-currentassets	148	154
Long-term bank borrowings	20,857	23,014
Obligations under finance leases	89,491	64,521
Total	¥ 110,496	¥ 87,535

Financial Risk Management Obj_3

Financial Risk Management Objectives and Policies - Additional Information (Detail) ¥ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)Contracts	Dec. 31, 2018CNY (¥)Contracts
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Percentage of operating expense accounted for by aircraft fuel	29.00%	33.00%
Number of open crude oil option contracts | Contracts	0	0
Balance due from BSP agents	¥ 1,793	¥ 1,525
Fuel price risk [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Percentage change in fuel price	5.00%
Increase in fuel cost due to a potential change in fuel prices [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Change in fuel costs due to a potential change in fuel prices	¥ 1,710	1,684
Forward currency contracts [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Notional value	5,414
Billing and settlements plan agents [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Balance due from BSP agents	¥ 835	¥ 637

Financial Risk Management Obj_4

Financial Risk Management Objectives and Policies - Summary of Foreign Currency Risk (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Trade receivables	¥ 1,793		¥ 1,525
Cash and cash equivalents	1,350		646
Other non-current assets	3,970		3,370
Trade and other payables	(3,877)		(4,040)
Borrowings	(51,837)		(55,126)
Finance Lease [Member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Lease liabilities	(110,275)	¥ (109,306)	(77,427)
USD [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Trade receivables	28		75
Cash and cash equivalents	635		124
Other receivables	2,065
Other non-current assets	180		190
Trade and other payables	(105)		(144)
Borrowings	(870)		(3,139)
USD [member] | Finance Lease [Member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Lease liabilities	(45,674)		(25,376)
EUR [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Trade receivables	47		55
Cash and cash equivalents	63		47
Other receivables	3		2
Trade and other payables	(3)		(2)
Borrowings	(3,073)		(3,566)
SGD [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Trade receivables	5		5
Cash and cash equivalents	5		10
Other receivables	1		1
Trade and other payables			(5)
Borrowings	(2,587)		(2,503)
SGD [member] | Finance Lease [Member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Lease liabilities	(397)		(514)
KRW [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Trade receivables	10		25
Cash and cash equivalents	11
Other receivables	130		131
Borrowings	¥ (1,810)		¥ (1,066)

Financial Risk Management Obj_5

Financial Risk Management Objectives and Policies - Summary of Sensitivity Analysis of Foreign Currency Risk (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Effect of change on profit or loss if currency weakens against foreign currency [member] | USD [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	¥ (328)	¥ (178)
Effect of change on profit or loss if currency weakens against foreign currency [member] | EUR [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	(22)	(26)
Effect of change on profit or loss if currency weakens against foreign currency [member] | SGD [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	(22)	(23)
Effect of change on profit or loss if currency weakens against foreign currency [member] | KRW [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	(12)	(7)
Effect of changeon profit or loss if currency strengthens against foreign currency [member] | USD [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	328	178
Effect of changeon profit or loss if currency strengthens against foreign currency [member] | EUR [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	22	26
Effect of changeon profit or loss if currency strengthens against foreign currency [member] | SGD [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	22	23
Effect of changeon profit or loss if currency strengthens against foreign currency [member] | KRW [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	12	7
Effect of change on other comprehensive income if currency weakens against foreign currency [member] | USD [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	(41)	(34)
Effect of change on other comprehensive income if currency strengthens against foreign currency [member] | USD [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if RMB (weakens)/strengthens against foreign currency	¥ 41	¥ 34

Financial Risk Management Obj_6

Financial Risk Management Objectives and Policies - Summary of Interest Rate Risk (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Cash and cash equivalents	¥ 1,350		¥ 646
Restricted bank deposits and short-term bank deposits	6		16
Borrowings	(51,837)		(55,126)
Finance Lease [Member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Lease liabilities/Obligations under finance leases	(110,275)	¥ (109,306)	(77,427)
Floating interest rate [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Cash and cash equivalents	1,350		646
Restricted bank deposits and short-term bank deposits	6		16
Borrowings	(3,943)		(9,705)
Floating interest rate [member] | Finance Lease [Member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Lease liabilities/Obligations under finance leases	(49,851)		(50,761)
Floating interest rate [member] | Interest rate swaps [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Interest rate swaps at notional amount	6,194		7,566
Fixed interest rate [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Borrowings	(47,929)		(45,477)
Fixed interest rate [member] | Finance Lease [Member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Lease liabilities/Obligations under finance leases	¥ (60,423)		¥ (26,666)

Financial Risk Management Obj_7

Financial Risk Management Objectives and Policies - Summary of Sensitivity Analysis of Interest Rate Risk (Detail) - Floating interest rate [member] - CNY (¥) ¥ in Millions	Dec. 31, 2019	Dec. 31, 2018
Effect of change on profit or loss if floating interest rate increases [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if floating interest rate increases	¥ (98)	¥ (112)
Effect of change on other comprehensive income if floating interest rate increases [member]
Disclosure of nature and extent of risks arising from financial instruments [Line Items]
Effect on profit or loss/other comprehensive income if floating interest rate increases	¥ 12	¥ 14

Financial Risk Management Obj_8

Financial Risk Management Objectives and Policies - Summary of Contractual Undiscounted Cash Flows of Financial Liabilities (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Borrowings	¥ 54,972	¥ 58,818
Lease liabilities	129,911
Trade, bills and other payables	26,479	19,747
Total	211,362	169,545
Finance Lease [Member]
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Lease liabilities		90,980
Less than 1 year [member]
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Borrowings	26,422	30,813
Trade, bills and other payables	26,479	19,747
Total	72,771	62,534
Less than 1 year [member] | Finance Lease [Member]
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Lease liabilities	19,870	11,974
1 to 2 years [member]
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Borrowings	8,796	8,074
Total	26,487	20,088
1 to 2 years [member] | Finance Lease [Member]
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Lease liabilities	17,691	12,014
2 to 5 years [member]
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Borrowings	15,882	15,500
Total	60,801	45,518
2 to 5 years [member] | Finance Lease [Member]
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Lease liabilities	44,919	30,018
Over 5 years [member]
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Borrowings	3,872	4,431
Total	51,303	41,405
Over 5 years [member] | Finance Lease [Member]
Disclosure of maturity analysis for non-derivative and derivative financial liabilities [Line Items]
Lease liabilities	¥ 47,431	¥ 36,974

Financial Risk Management Obj_9

Financial Risk Management Objectives and Policies - Summary of Market Equity Indices for Stock Exchanges and their Respective Highest and Lowest Points (Detail)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Hong Kong [member] | Hang Seng Index [member]
Disclosure Of Change In Equity Price Risk [line items]
Market equity indices	28,190	25,846
Shanghai [member] | A Share Index [member]
Disclosure Of Change In Equity Price Risk [line items]
Market equity indices	3,196	2,611
Bottom of range [member] | Hong Kong [member] | Hang Seng Index [member]
Disclosure Of Change In Equity Price Risk [line items]
Market equity indices	30,157	33,154
Bottom of range [member] | Shanghai [member] | A Share Index [member]
Disclosure Of Change In Equity Price Risk [line items]
Market equity indices	3,426	3,728
Top of range [member] | Hong Kong [member] | Hang Seng Index [member]
Disclosure Of Change In Equity Price Risk [line items]
Market equity indices	25,064	24,586
Top of range [member] | Shanghai [member] | A Share Index [member]
Disclosure Of Change In Equity Price Risk [line items]
Market equity indices	2,580	2,600

Financial Risk Management Ob_10

Financial Risk Management Objectives and Policies - Summary of Sensitivity to Every 10% Change in Fair Values of Equity Investments, with all other Variables Held Constant (Detail) - CNY (¥) ¥ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Equity investments designated at fair value through other comprehensive income [member] | Unlisted investments, at cost [Member]
Disclosure Of Change In Equity Price Risk [line items]
Carrying amount of equity investment	¥ 778	¥ 737
Increase in comprehensive income	58	55
Decrease in comprehensive income	(58)	(55)
Hong Kong [member] | Equity investments designated at fair value through other comprehensive income [member] | Listed investments [member]
Disclosure Of Change In Equity Price Risk [line items]
Carrying amount of equity investment	496	510
Increase in comprehensive income	37	38
Decrease in comprehensive income	(37)	(38)
Shanghai [member] | Assets at fair value through profit or loss [member] | Listed investments [member]
Disclosure Of Change In Equity Price Risk [line items]
Carrying amount of equity investment	121	96
Increase in profit or loss	9	7
Decrease in profit or loss	¥ (9)	¥ (7)

Financial Risk Management Ob_11

Financial Risk Management Objectives and Policies - Summary of Debt Ratio (Detail) - CNY (¥) ¥ in Millions	Dec. 31, 2019	Jan. 01, 2019	Dec. 31, 2018
Statement [LineItems]
Total liabilities	¥ 212,539		¥ 177,416
Total assets	¥ 285,185		¥ 239,017
Debt ratio	75.00%		74.00%
Restatement [Member]
Statement [LineItems]
Total liabilities		¥ 211,750
Total assets		¥ 271,593
Debt ratio		79.00%

Events After the Reporting Pe_2

Events After the Reporting Period - Additional Information (Detail) ¥ / shares in Units, $ / shares in Units, ¥ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019CNY (¥)¥ / sharesshares	Dec. 31, 2019USD ($)$ / sharesshares	Dec. 31, 2018CNY (¥)¥ / shares	Dec. 31, 2017CNY (¥)¥ / shares
Disclosure of Events After Reporting Period [line items]
Proposed dividends per share | ¥ / shares	¥ 0.050		¥ 0	¥ 0.049
Proposed dividends per share | ¥	¥ 819			¥ 740
Dividend Distribution Plan [Member]
Disclosure of Events After Reporting Period [line items]
Proposed dividends per share | $ / shares		$ 0.050
Proposed dividends per share | $		$ 819
Shares outstanding | shares	16,379,509,203	16,379,509,203