Information Relating to the Consolidated Statement of Cash Flows

The “Net increase in operating working capital” was composed of the following operating changes:



	Three Months Ended March 31
	2018			2017
	(Millions of dollars)
(Increase) decrease in accounts and notes receivable	$	(335	)	$	317
Increase in inventories	(543		)	(550		)
(Increase) decrease in prepaid expenses and other current assets ¹	(608		)	26
Decrease in accounts payable and accrued liabilities ¹	(807		)	(1,090		)
Increase in income and other taxes payable	189			245
Net increase in operating working capital ¹	$	(2,104	)	$	(1,052	)
____________________
¹ 2017 adjusted to conform to Accounting Standards Update 2016-18.

“Net Cash Provided by Operating Activities” included the following cash payments for interest on debt and for income taxes:



	Three Months Ended March 31
	2018		2017
	(Millions of dollars)
Interest on debt (net of capitalized interest)	$	105	$	—
Income taxes	843		494

"Other" includes changes in postretirement benefits obligations and other long-term liabilities.

The “Net (purchases) sales of marketable securities” consisted of the following gross amounts:



	Three Months Ended March 31
	2018			2017
	(Millions of dollars)
Marketable securities purchased	$	(29	)	$	—
Marketable securities sold	—			2
Net (purchases) sales of marketable securities	$	(29	)	$	2

The “Net repayment (borrowing) of loans by equity affiliates” consisted of the following gross amounts:



	Three Months Ended March 31
	2018		2017
	(Millions of dollars)
Borrowing of loans by equity affiliates	$	—	$	(70	)
Repayment of loans by equity affiliates	26		64
Net repayment (borrowing) of loans by equity affiliates	$	26	$	(6	)

The “Net borrowings (repayments) of short-term obligations" consisted of the following gross and net amounts:



	Three Months Ended March 31
	2018			2017
	(Millions of dollars)
Repayments of short-term obligations	$	(1,377	)	$	(2,952	)
Proceeds from issuances of short-term obligations	658			3,415
Net borrowings of short-term obligations with three months or less maturity	3,933			(4,391		)
Net borrowings (repayments) of short-term obligations	$	3,214		$	(3,928	)

The “Net sales of treasury shares” represents the value of shares sold for share-based compensation plans, net of purchases. Purchases totaled $1 million for the first three months in 2018 and $1 million for the first three months in 2017. No purchases were made under the company's share repurchase program in the first three months of 2018 or 2017.

The major components of “Capital expenditures” and the reconciliation of this amount to the capital and exploratory expenditures, including equity affiliates, are as follows:



	Three Months Ended March 31
	2018		2017
	(Millions of dollars)
Additions to properties, plant and equipment	$	2,937	$	3,305
Additions to investments	15		3
Current year dry hole expenditures	45		7
Capital expenditures	2,997		3,315
Expensed exploration expenditures	113		137
Assets acquired through capital lease obligations	—		1
Capital and exploratory expenditures, excluding equity affiliates	3,110		3,453
Company’s share of expenditures by equity affiliates	1,295		939
Capital and exploratory expenditures, including equity affiliates	$	4,405	$	4,392

On January 1, 2018, Chevron adopted Accounting Standards Updates (ASU) 2016-15 and 2016-18, which require retrospective adjustment of prior periods in the Statement of Cash Flows.

In addition to other requirements, ASU 2016-15 specifies new standards for the classification of distributions from equity affiliates. In adopting these new standards, Chevron utilized the cumulative earnings approach to evaluate returns on and returns of investment from equity affiliates. For the first three months of 2017, a total of $6 million was reclassified from “Distributions less than income from equity affiliates” to “Proceeds and deposits related to asset sales and returns of investment.”

Adoption of ASU 2016-18 requires the inclusion of restricted cash and associated changes in restricted cash in the Consolidated Statement of Cash Flows. The impact of ASU 2016-18 is captured across several line items in the Statement of Cash Flows, including “Net decrease (increase) in operating working capital,” “Decrease (increase) in other deferred charges,” and “Proceeds and deposits related to asset sales and returns of investment” with associated net changes captured in both “Net Cash Provided by Operating Activities” and “Net Cash Used for Investing Activities.” The line item “Net sales (purchases) of other short-term investments” was removed in conjunction with the adoption of ASU 2016-18.

The table on the next page quantifies the beginning and ending balances of restricted cash and restricted cash equivalents in the Consolidated Balance Sheet:



	At March 31				At December 31
	2018		2017		2017		2016
	(Millions of dollars)				(Millions of dollars)
Cash and Cash Equivalents	$	6,466	$	6,983	$	4,813	$	6,988
Restricted cash included in "Prepaid expenses and other current assets"	316		306		405		488
Restricted cash included in "Deferred charges and other assets"	735		784		725		938
Total Cash, Cash Equivalents and Restricted Cash	$	7,517	$	8,073	$	5,943	$	8,414

Additional information related to "Restricted Cash" is included on page 22 in Note 15 under the heading "Restricted Cash."