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Derivative Instruments (Tables)
3 Months Ended
Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Gains and losses on derivative instruments designated as cash flow hedges recognized in other comprehensive income and reclassifications from AOCI to earnings
Gains and losses on derivative instruments designated as cash flow hedges recognized in OCI and reclassifications from AOCI into Net Income:
 Quarter ended
 Gains/(Losses) Recognized in OCI (Gains)/Losses Reclassified from AOCI into Net Income
 2021 2020 2021 2020
Interest rate swaps$24 $(83)$$
Foreign currency contracts— — (8)
Income tax benefit/(expense)(6)19 (1)