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Fair Value Measurements
6 Months Ended
Jun. 30, 2019
Fair Value Disclosures [Abstract]  
Fair Value Measurements Fair Value Measurements

Occidental has categorized its assets and liabilities that are measured at fair value in a three-level fair value hierarchy, based on the inputs to the valuation techniques: Level 1 — using quoted prices in active markets for the assets or liabilities; Level 2 — using observable inputs other than quoted prices for the assets or liabilities; and Level 3 — using unobservable inputs. Transfers between levels, if any, are recognized at the end of each reporting period.

The following tables provide fair value measurement information for such assets and liabilities that are measured on a recurring basis as of June 30, 2019, and December 31, 2018 (in millions):
Fair Value Measurements at June 30, 2019:
 
 
 
 
 
 
Embedded derivatives

 
Level 1
 
Level 2
 
Level 3
 
Netting and
Collateral
 
Total Fair
Value
Liabilities:
 
 
 
 
 
 
 
 
 
 
Accrued liabilities
 
$

 
$
43

 
$

 
$

 
$
43

Deferred credits and other liabilities - other
 
$

 
$
73

 
$

 
$

 
$
73

 
 
 
 
 
 
 
Fair Value Measurements at December 31, 2018:
 
 
 
 
 
 
Embedded derivatives

 
Level 1
 
Level 2
 
Level 3
 
Netting and
Collateral
 
Total Fair
Value
Liabilities:
 
 
 
 
 
 
 
 
 
 
Accrued liabilities
 
$

 
$
66

 
$

 
$

 
$
66

Deferred credits and other liabilities - other
 
$

 
$
116

 
$

 
$

 
$
116



Fair Values — Nonrecurring

During the six months ended June 30, 2019, Occidental did not have any assets or liabilities measured at fair value on a nonrecurring basis. During 2018, Occidental recognized pre-tax impairment and related charges of $416 million primarily related to Qatar Idd El Shargi North Dome (ISND) and Idd El Shargi South Dome proved properties and inventory. The fair value of the proved properties was measured based on the income approach, which incorporated a number of assumptions involving expectations of future cash flows. These assumptions included estimates of future product prices, which Occidental based on forward price curves, estimates of oil and gas reserves, estimates of future expected operating and capital costs and a risk-adjusted discount rate of 10 percent. These inputs are categorized as Level 3 in the fair value hierarchy. As the end of the contract period for ISND approaches, significant changes to estimated future cash flows could result in additional impairment charges.
 
Other Financial Instruments

The carrying amounts of cash and cash equivalents and other on-balance-sheet financial instruments, other than long-term, fixed-rate debt, approximate fair value. The cost, if any, to terminate Occidental's off-balance-sheet financial instruments is not significant. Occidental estimates the fair value of fixed-rate debt based on the quoted market prices for those instruments or on quoted market yields for similarly rated debt instruments, taking into account such instruments’ maturities. The estimated fair value of Occidental’s debt as of June 30, 2019, and December 31, 2018, was $10.7 billion and $10.3 billion, respectively. The remaining principal payments, less the discount on long-term debt, aggregated approximately $10.4 billion as of June 30, 2019, and December 31, 2018.