XML 41 R31.htm IDEA: XBRL DOCUMENT v3.23.2
Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2023
Fair Value Disclosures [Abstract]  
Schedule of cash and cash equivalents and other investments reconciliation from adjusted cost to fair value
Our cash and cash equivalents and other investments consist of the following:
 June 30, 2023
 Cost BasisUnrealized
Gains
Unrealized
Losses
Fair Value
 (in millions)
Cash$183 $— $— $183 
Cash equivalents:
U.S. and Canadian government obligations2,792 — — 2,792 
Other debt securities244 — — 244 
Total cash and cash equivalents$3,219 $— $— $3,219 
Nonqualified employee benefit trusts16 — 17 
 December 31, 2022
 Cost BasisUnrealized
Gains
Unrealized
Losses
Fair Value
 (in millions)
Cash$153 $— $— $153 
Cash equivalents:
U.S. and Canadian government obligations1,902 — — 1,902 
Other debt securities268 — — 268 
Total cash and cash equivalents$2,323 $— $— $2,323 
Nonqualified employee benefit trusts16 — — 16 
Schedule of assets and liabilities measured at fair value on a recurring basis
The following tables present assets and liabilities included in our consolidated balance sheets as of June 30, 2023 and December 31, 2022 that are recognized at fair value on a recurring basis, and indicate the fair value hierarchy utilized to determine such fair value:
 June 30, 2023
 Total Fair
Value
Quoted Prices
in Active
Markets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
 (in millions)
Cash equivalents$3,036 $3,036 $— $— 
Nonqualified employee benefit trusts17 17 — — 
Derivative assets— — 
Derivative liabilities(9)— (9)— 
 December 31, 2022
 Total Fair
Value
Quoted Prices
in Active
Markets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
 (in millions)
Cash equivalents$2,170 $2,170 $— $— 
Nonqualified employee benefit trusts16 16 — — 
Derivative assets12 — 12 — 
Derivative liabilities(85)— (85)— 
Schedule of carrying amounts and estimated fair values of financial instruments
The carrying amount and estimated fair value of our financial instruments are as follows:
 June 30, 2023December 31, 2022
 Carrying
Amount
Fair ValueCarrying
Amount
Fair Value
 (in millions)
Long-term debt$2,967 $2,767 $2,965 $2,764