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CONSOLIDATED STATEMENT OF SHAREHOLDERS EQUITY (Parenthetical) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Statement of Stockholders' Equity [Abstract] |  |  |  |
Gains on derivatives qualifying as hedges; tax |  | $ 0 |  | $ 1
Pension liability and postretirement adjustment; tax | $ (1) | $ (2) | $ (1) | $ (1)
Dividends declared per share, in dollars per share | $ 0.79 | $ 0.77 | $ 1.58 | $ 1.54

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- Definition Amount, after reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI https://asc.fasb.org/extlink&oid=126968391&loc=d3e640-108580 + Details
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