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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Jul. 01, 2018 | Dec. 31, 2020 | Dec. 31, 2019
Operating revenues |  |  |  |  |
Contract revenues |  | $ 469 | $ 619 | $ 703 | $ 997
Management contract revenue | [1] | 56 | 38 | 289 | 338
Total operating revenues |  | 541 | 712 | 1,059 | 1,388
Operating expenses |  |  |  |  |
Depreciation |  | (236) | (391) | (346) | (426)
Amortization of intangibles |  | (58) | 0 | (1) | (134)
Management contract expense | [1] | (44) | (45) | (390) | (302)
Selling, general and administrative expenses |  | (43) | (47) | (80) | (95)
Total operating expenses |  | (737) | (918) | (1,457) | (1,722)
Other operating items |  |  |  |  |
Loss on impairment of long-lived assets |  | 0 | (414) | (4,087) | 0
Loss on impairment of intangibles |  | 0 | 0 | (21) | 0
Gain on disposals |  | 0 | 0 | 15 | 0
Other operating income | [1] | 21 | 7 | 9 | 39
Total other operating items |  | 21 | (407) | (4,084) | 39
Operating loss |  | (175) | (613) | (4,482) | (295)
Financial and other non-operating items |  |  |  |  |
Interest income | [1] | 40 | 19 | 34 | 69
Interest expense |  | (261) | (38) | (469) | (487)
Loss on impairment of investments |  | 0 | 0 | (47) | (302)
Share in results from associated companies (net of tax) |  | (90) | 149 | (77) | (115)
Fair value measurement on deconsolidation of VIE | [1] | 0 | 0 | 509 | 0
Loss on derivative financial instrument |  | (31) | (4) | 0 | (37)
Loss impairment of convertible bond from related party | [1] | 0 | 0 | (29) | (11)
Net loss on debt extinguishment |  | 0 | 0 | 0 | (22)
Foreign exchange loss |  | (4) | 0 | (23) | (11)
Loss on marketable securities |  | (64) | (3) | (3) | (46)
Reorganization items, net |  | (9) | (3,365) | 0 | 0
Other financial and non-operating items | [1] | (3) | 0 | (71) | (4)
Total financial and other non-operating items, net |  | (422) | (3,242) | (176) | (966)
Loss before income taxes |  | (597) | (3,855) | (4,658) | (1,261)
Income tax (expense)/benefit |  | (8) | (30) | (5) | 39
Net loss |  | (605) | (3,885) | (4,663) | (1,222)
Net loss attributable to the parent |  | (602) | (3,881) | (4,659) | (1,219)
Net loss attributable to the non-controlling interest |  | (2) | (6) | (3) | (1)
Net (loss)/gain attributable to the redeemable non-controlling interest |  | $ (1) | $ 2 | $ (1) | $ (2)
Basic loss per share (usd per share) |  | $ (6.02) | $ (7.71) | $ (46.43) | $ (12.18)
Diluted loss per share (usd per share) |  | $ (6.02) | $ (7.71) | $ (46.43) | $ (12.18)
Reimbursable revenues/ expenses |  |  |  |  |
Operating revenues |  |  |  |  |
Reimbursable and other revenues |  | $ 16 | $ 21 | $ 37 | $ 41
Operating expenses |  |  |  |  |
Expenses |  | (15) | (18) | (34) | (39)
Other revenues |  |  |  |  |
Operating revenues |  |  |  |  |
Reimbursable and other revenues | [1] | 0 | 34 | 30 | 12
Vessel and rig operating expenses |  |  |  |  |
Operating expenses |  |  |  |  |
Expenses |  | $ (341) | $ (417) | $ (606) | $ (726)
[1] | Includes transactions with related parties. Refer to Note 32 - "Related party transactions" for further details.

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