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Accumulated Other Comprehensive Loss (Tables)
3 Months Ended
Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]  
Schedule of Components of Accumulated Other Comprehensive Loss in the Equity Section of the Balance Sheet
Accumulated other comprehensive loss in the equity section of our consolidated balance sheet includes:

Millions of Dollars

Defined Benefit
Plans
Net Unrealized
Loss on
Securities
Foreign
Currency
Translation
Accumulated
Other
Comprehensive
Loss
December 31, 2022$(448)(11)(5,541)(6,000)
Other comprehensive income (loss)
11 4 (42)(27)
March 31, 2023$(437)(7)(5,583)(6,027)
Schedule of Items Reclassified out of Accumulated Other Comprehensive Income (Loss)
The following table summarizes reclassifications out of accumulated other comprehensive loss and into net income:

Millions of Dollars

Three Months Ended
March 31

20232022
Defined benefit plans
$11 
The above amounts are included in the computation of net periodic benefit cost and are presented net of tax expense of $3 million and $2 million for the three-month periods ended March 31, 2023 and March 31, 2022, respectively. See Note 13.