XML 93 R75.htm IDEA: XBRL DOCUMENT v3.22.0.1
Statement of Cash Flows, Supplemental Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]        
Cash payments related to operating lease liabilities [1] $ 550 $ 538 $ 541  
Interest paid 661 653 661  
Income taxes paid (refund) 20 19 16  
New ROU assets obtained in exchange for operating lease liabilities 573 627 431  
Increase (Decrease) in accounts payable for purchases of property and equipment 3 27 2  
Purchase of property and equipment under capital leases and installment purchases 25 33 33  
Cash and cash equivalents 292 232 196  
Restricted cash 169 144 137  
Restricted Cash, Noncurrent 5 5 5  
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents $ 466 $ 381 $ 338 $ 413
[1] Excludes the Company's contingent payments pursuant to operating leases, which are recorded as expense in the period such contingencies are resolved.