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Supplemental Disclosures
3 Months Ended
Mar. 31, 2021
Disclosure Text Block Supplement [Abstract]  
Supplemental Disclosures SUPPLEMENTAL DISCLOSURES
The following tables present supplemental information related to the consolidated financial statements (in millions).
Supplemental Cash Flow Information
Three Months Ended March 31,
20212020
Cash paid for taxes, net$100 $108 
Cash paid for interest, net188 174 
Non-cash investing and financing activities:
Accrued purchases of property and equipment23 59 
Assets acquired under finance lease and other arrangements12 58 

Cash, Cash Equivalents, and Restricted Cash
 March 31, 2021December 31, 2020
Cash, cash equivalents, and restricted cash:
Cash and cash equivalents$2,008 $2,091 
Restricted cash - other current assets— 31 
Total cash, cash equivalents, and restricted cash $2,008 $2,122