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Cash, Cash Equivalents and Restricted Cash (Tables)
9 Months Ended
Sep. 30, 2018
Cash and Cash Equivalents [Abstract]  
Restrictions on Cash and Cash Equivalents
The following table provides a reconciliation of cash, cash equivalents and restricted cash as reported within our Consolidated Condensed Statements of Cash Flows:
 
September 30
Millions of dollars
2018
 
2017
Cash and cash equivalents as presented in our Consolidated Condensed Balance Sheets
1,032

 
1,087

Restricted cash included in prepaid and other current assets (1)
45

 
47

Restricted cash included in other noncurrent assets (1)
5

 
63

Cash, cash equivalents and restricted cash as presented in our Consolidated Condensed Statements of Cash Flows
$
1,082

 
$
1,197

(1)Change in restricted cash resulted in realization of foreign currency translation adjustments of $3 million and ($5 million), respectively, for the nine months ended September 30, 2018 and 2017 compared to the prior year.
 
December 31,
Millions of dollars
2017
 
2016
Cash and cash equivalents as presented in our Consolidated Balance Sheets
1,196

 
1,085

Restricted cash included in prepaid and other current assets
48

 
45

Restricted cash included in other noncurrent assets
49

 
110

Cash, cash equivalents and restricted cash as presented in our Consolidated Statements of Cash Flows
$
1,293

 
$
1,240

Schedule of Cash and Cash Equivalents
The following table provides a reconciliation of cash, cash equivalents and restricted cash as reported within our Consolidated Condensed Statements of Cash Flows:
 
September 30
Millions of dollars
2018
 
2017
Cash and cash equivalents as presented in our Consolidated Condensed Balance Sheets
1,032

 
1,087

Restricted cash included in prepaid and other current assets (1)
45

 
47

Restricted cash included in other noncurrent assets (1)
5

 
63

Cash, cash equivalents and restricted cash as presented in our Consolidated Condensed Statements of Cash Flows
$
1,082

 
$
1,197

(1)Change in restricted cash resulted in realization of foreign currency translation adjustments of $3 million and ($5 million), respectively, for the nine months ended September 30, 2018 and 2017 compared to the prior year.
 
December 31,
Millions of dollars
2017
 
2016
Cash and cash equivalents as presented in our Consolidated Balance Sheets
1,196

 
1,085

Restricted cash included in prepaid and other current assets
48

 
45

Restricted cash included in other noncurrent assets
49

 
110

Cash, cash equivalents and restricted cash as presented in our Consolidated Statements of Cash Flows
$
1,293

 
$
1,240