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Derivative Instruments (Tables)
12 Months Ended
Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Instruments, Gain (Loss) [Table Text Block]
Gains and losses on derivative instruments designated as cash flow hedges recognized in OCI and reclassifications from AOCI into Net Income:
 Gains/(Losses) Recognized in OCI (Gains)/Losses Reclassified from AOCI into Net Income
 
2020
 
2019
2018
 
2020
 
2019
2018
Interest rate swaps$(103)$(71)$(3)$10 $(17)$(19)
Foreign currency contracts20 22 (4)(8)(20)
Income tax benefit/(expense)24 16 (1)