Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.14)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Chapter 11 Proceedings and Ability to Continue as Going Concern - Debtor-in-Possession Condensed Balance Sheet (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CURRENT ASSETS
Cash and cash equivalents	$ 325,800,000	$ 97,200,000	$ 275,100,000	$ 445,400,000
Accounts receivable, net	449,200,000	520,700,000
Other	397,900,000	446,500,000
Total current assets	1,172,900,000	1,064,400,000
PROPERTY AND EQUIPMENT, AT COST	13,209,300,000	18,393,800,000
Less accumulated depreciation	2,248,800,000	3,296,900,000
Property and equipment, net	10,960,500,000	15,096,900,000	$ 12,616,200,000
LONG-TERM NOTES RECEIVABLE FROM ARO	442,700,000	452,900,000
INVESTMENT IN ARO	120,900,000	128,700,000
OTHER ASSETS	176,200,000	188,300,000
TOTAL ASSETS	12,873,200,000	16,931,200,000
CURRENT LIABILITIES
Accounts payable - trade	176,400,000	288,200,000
Accrued liabilities and other	250,400,000	417,700,000
Liabilities, Current	426,800,000	830,700,000
Other Liabilities, Noncurrent	762,400,000	867,400,000
Liabilities Subject to Compromise	7,313,700,000	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	4,370,300,000	9,309,600,000
Total liabilities and shareholders' equity	12,873,200,000	$ 16,931,200,000
Valaris, PLC And Certain Subsidiaries Party To The Bankruptcy Cases [Member]
CURRENT ASSETS
Cash and cash equivalents	228,900,000
Accounts receivable, net	382,500,000
Accounts Receivable, Non-debtor Subsidiaries	2,812,000,000.0
Other	377,400,000
Total current assets	3,800,800,000
PROPERTY AND EQUIPMENT, AT COST	12,256,100,000
Less accumulated depreciation	1,973,800,000
Property and equipment, net	10,282,300,000
LONG-TERM NOTES RECEIVABLE FROM ARO	442,700,000
Long-term Notes Receivable From Non-Debtor Subsidiaries	2,205,300,000
INVESTMENT IN ARO	120,900,000
Investment In Non-debtor Subsidiaries	585,900,000
OTHER ASSETS	158,200,000
TOTAL ASSETS	17,596,100,000
CURRENT LIABILITIES
Accounts payable - trade	149,400,000
Accrued liabilities and other	196,200,000
Liabilities, Current	345,600,000
Long-term Debt Payable To Non-debtor Subsidiaries	2,548,600,000
Other Liabilities, Noncurrent	602,300,000
Liabilities, Total, Not Subject To Compromise	3,496,500,000
Liabilities Subject to Compromise	7,313,700,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	6,785,900,000
Total liabilities and shareholders' equity	$ 17,596,100,000