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Supplemental Financial Information (Tables)
 12 Months Ended
Dec. 31, 2024
Supplemental Financial Information [Abstract]  
Accounts Receivable, Net
Accounts receivable, net, consisted of the following (in millions):
December 31,
20242023
Trade$502.4 $375.2 
Income tax receivables 76.2 83.2 
Other9.2 16.2 
 587.8 474.6 
Allowance for doubtful accounts(16.6)(15.3)
 $571.2 $459.3 
Other Current Assets
Other current assets consisted of the following (in millions):
December 31,
20242023
Prepaid taxes
$48.5 $49.1 
Deferred costs38.6 75.3 
Prepaid expenses13.0 23.6 
Other26.9 29.2 
$127.0 $177.2 
Schedule of Accrued Liabilities
Accrued liabilities and other consisted of the following (in millions):
December 31,
20242023
Personnel costs
$89.2 $76.6 
Current contract liabilities (deferred revenues)
87.2 116.2 
Income and other taxes payable57.2 52.9 
Accrued claims39.5 20.4 
Lease liabilities28.0 27.2 
Accrued interest
15.3 15.4 
Other34.6 35.5 
 $351.0 $344.2 
Other Liabilities
Other liabilities consisted of the following (in millions):
December 31, 2024December 31, 2023
Unrecognized tax benefits (inclusive of interest and penalties)$128.3 $224.0 
Pension and other post-retirement benefits106.5 141.6 
Noncurrent contract liabilities (deferred revenues)
71.4 37.6 
Lease liabilities
56.9 48.9 
Other20.1 19.6 
 $383.2 $471.7 
Repair And Maintenance Expense Related To Continuing Operations
Repair and maintenance expense related to continuing operations was as follows (in millions):
Years Ended December 31,
202420232022
Repair and maintenance expense$239.6 $203.3 $175.2 
Schedule of Other Nonoperating Income, by Component
Other, net, consisted of the following (in millions):
Years Ended December 31,
202420232022
Net foreign currency exchange gains (losses)$13.8 $(3.5)$12.2 
Net periodic pension and retiree medical income
2.4 0.9 16.4 
Net gain (loss) on sale of property(0.2)28.6 141.2 
Loss on extinguishment of debt
— (29.2)— 
Other income (expense)0.6 1.4 (2.3)
$16.6 $(1.8)$167.5 
Schedule of Cash Flows Information
Net cash provided by (used in) operating activities attributable to the net change in operating assets and liabilities was as follows (in millions):
Years Ended December 31,
202420232022
(Increase) decrease in accounts receivable$(64.9)$44.9 $(6.9)
(Increase) decrease in other assets
22.4 (5.9)0.5 
Increase (decrease) in liabilities(91.7)82.8 (0.2)
$(134.2)$121.8 $(6.6)
Cash Paid For Interest And Income Taxes
Additional cash flow information was as follows (in millions):
Years Ended December 31,
202420232022
Cash paid for interest and taxes
Interest paid, net of amounts capitalized$78.3 $32.3 $44.2 
Income taxes paid (refunded), net $55.6 $(8.3)$5.6 
Non-cash investing activities
Accruals for capital expenditures as of period end (1)
$36.2 $71.5 $22.1 
(1)Accruals for capital expenditures were excluded from investing activities in our Consolidated Statements of Cash Flows.

We received U.S. income tax refunds totaling $35.9 million in 2024 primarily related to an Internal Revenue Service examination of one of our subsidiaries' 2009-2012 tax returns.
Revenue from External Customers by Products and Services Consolidated revenues with customers that individually contributed 10% or more of revenue in the years ended December 31, 2024, 2023 and 2022 were as follows:
Year Ended December 31, 2024
FloatersJackupsOtherTotal
BP plc ("BP")9 %3 %5 %17 %
Other customers (1)
52 %29 %2 %83 %
61 %32 %7 %100 %

Year Ended December 31, 2023
FloatersJackupsOtherTotal
BP
— %5 %6 %11 %
Other customers (1)
53 %32 %4 %89 %
53 %37 %10 %100 %

Year Ended December 31, 2022
FloatersJackupsOtherTotal
BP
6 %3 %6 %15 %
Other customers (1)
38 %43 %4 %85 %
44 %46 %10 %100 %
(1)Other customers includes customers that individually contributed to less than 10% of our total revenues.
Revenue from External Customers by Geographic Areas
Geographic Concentration - For purposes of our geographic disclosure, we attribute revenues to the geographic location where such revenues are earned. Consolidated revenues for locations that individually had 10% or more of revenue were as follows (in millions):

Year Ended December 31, 2024
FloatersJackupsOtherTotal
Brazil
$497.9 $— $— $497.9 
United Kingdom
— 375.2 — 375.2 
U.S. Gulf of Mexico245.4 10.3 111.7 367.4 
Australia
172.1 104.3 — 276.4 
Angola
196.7 — — 196.7 
Other countries (1)
328.6 265.1 55.3 649.0 
$1,440.7 $754.9 $167.0 $2,362.6 
Year Ended December 31, 2023
FloatersJackupsOtherTotal
U.S. Gulf of Mexico$220.9 $27.2 $104.7 $352.8 
United Kingdom— 267.2 — 267.2 
Angola
210.9 — — 210.9 
Brazil
195.0 — — 195.0 
Australia
157.0 29.9 — 186.9 
Other countries (1)
164.9 335.3 71.2 571.4 
$948.7 $659.6 $175.9 $1,784.2 

Year Ended December 31, 2022
FloatersJackupsOtherTotal
U.S. Gulf of Mexico$230.9 $21.3 $99.0 $351.2 
United Kingdom— 264.5 — 264.5 
Australia
113.0 30.0 — 143.0 
Brazil
111.5 — — 111.5 
Angola
78.5 — — 78.5 
Other countries (1)
166.6 428.4 58.8 653.8 
$700.5 $744.2 $157.8 $1,602.5 
(1)Other countries includes locations that individually contributed to less than 10% of total revenues.