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Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2019
Fair Value Disclosures [Abstract]  
Assets and Liabilities Measured at Fair Value on Recurring Basis and Subject to Fair Value Disclosure Requirements
The Company’s assets and liabilities measured at fair value on a recurring basis and subject to fair value disclosure requirements at December 31, 2019 and December 31, 2018 were as follows:

 
 
 
Fair Value Measurements at Reporting Date Using
 
 
 
Quoted Prices 
in Active Markets
for Identical
Assets
 
Significant
Other
Observable
Inputs
 
Significant Unobservable Inputs
In millions
Total
 
(Level 1)
 
(Level 2)
 
(Level 3)
Assets
 
 
 
 
 
 
 
Money market funds at December 31, 2019
$
141

 
$
141

 
$
—

 
$
—

Money market funds at December 31, 2018
$
246

 
$
246

 
$
—

 
$
—

Liabilities
 
 
 
 
 
 
 
Interest rate swap at December 31, 2019
$
19

 
$
—

 
$
19

 
$
—

Interest rate swap at December 31, 2018
$
7

 
$
—

 
$
7

 
$
—