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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Current assets |  |
Cash and cash equivalents | $ 526 | $ 1,115
Restricted cash | 132 | 135
Marketable securities | 8 | 11
Accounts receivables, net | 125 | 173
Amount due from related parties, net | 85 | 181
Other current assets | 186 | 158
Total current assets | 1,062 | 1,773
Non-current assets |  |
Investment in associated companies | 248 | 389
Drilling units | 2,120 | 6,401
Restricted cash | 65 | 107
Deferred tax assets | 9 | 4
Equipment | 19 | 23
Amount due from related parties, net | 392 | 523
Other non-current assets | 46 | 59
Total non-current assets | 2,899 | 7,506
Total assets | 3,961 | 9,279
Current liabilities |  |
Debt due within one year | 6,177 | 343
Trade accounts payable | 45 | 86
Amounts due to related parties - current | 7 | 19
Other current liabilities | 316 | 322
Total current liabilities | 6,545 | 770
Non-current liabilities |  |
Long-term debt | 0 | 6,280
Long-term debt due to related parties | 426 | 239
Deferred tax liabilities | 10 | 12
Other non-current liabilities | 120 | 128
Total non-current liabilities | 556 | 6,659
Commitments and contingencies (see Note 35) |  |
Redeemable non-controlling interest | 0 | 57
EQUITY |  |
Common shares of par value US$0.10 per share: US$0.10 per share: 138,880,000 shares authorized and 100,384,435 issued at December 31, 2020 (US$0.10 per share: 138,880,000 shares authorized and 100,234,973 issued at December 31, 2019) | 10 | 10
Additional paid in capital | 3,504 | 3,496
Accumulated other comprehensive loss | (26) | (13)
Retained earnings | (6,628) | (1,851)
Total Shareholder’s equity | (3,140) | 1,642
Non-controlling interest | 0 | 151
Total equity | (3,140) | 1,793
Total liabilities and equity | $ 3,961 | $ 9,279
Total, fully diluted (in shares) | 138,880,000 | 138,880,000
Common shares, par value (in dollars per share) | $ 0.10 | $ 0.10

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