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Derivative Instruments and Hedging Activities (Tables)
3 Months Ended
Mar. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Derivative Instruments [Table Text Block]
As of March 31, 2023, the notional amounts, balance sheet classification and fair values of our derivative instruments designated as cash flow hedges were as follows (in millions) (there were no such hedges as of December 31, 2022):

Notional AmountBalance Sheet CaptionFair Value - Asset / (Liability)
Interest rate swap agreements$700 Other noncurrent liabilities$(9)
Forward starting interest rate swaps$1,200 Other accrued expenses$(13)