7Baggers

Southwest Airlines Co
(NYSE:LUV) 

LUV stock logo

Southwest Airlines Co. operates as a passenger airline company that provide scheduled air transportation services in the United States and near-international markets. As of December 31, 2020, the company operated a total fleet of 718 Boeing 737 aircrafts; and served 107 destinations in 40 states, th...

Founded: 1967
Full Time Employees: 57,931
Sector: Industrials
Industry: Airlines

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Quarterly
Annual
    Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2004-12-31 2003-12-31 
                                                                                       
      operating revenues:
                                                                                       
      passenger
    6,784,000,000 6,313,000,000 6,627,000,000 5,811,000,000 6,307,000,000 6,250,000,000 6,712,000,000 5,712,000,000 6,211,000,000 5,912,000,000 6,409,000,000 5,105,000,000 5,541,000,000 5,613,000,000 6,119,000,000 4,135,000,000 4,558,000,000 4,227,000,000 3,569,000,000 1,712,000,000 1,662,000,000 1,454,000,000 704,000,000 3,845,000,000 5,314,000,000 5,230,000,000 5,487,000,000 4,745,000,000 5,318,000,000 5,194,000,000 5,358,000,000 4,585,000,000 4,738,000,000 4,745,000,000 5,233,000,000 4,424,000,000 4,623,000,000 4,669,000,000 4,905,000,000 4,398,000,000 4,553,000,000 4,716,000,000 4,852,000,000 4,178,000,000 4,409,000,000 4,564,000,000 4,752,000,000 3,933,000,000 4,197,000,000 4,306,000,000 4,380,000,000 3,838,000,000 3,966,000,000 4,046,000,000 4,338,000,000 3,744,000,000 3,906,000,000 4,014,000,000 3,876,000,000 2,939,000,000 2,945,000,000 3,032,000,000 3,016,000,000 2,495,000,000 2,584,000,000 2,550,000,000 2,506,000,000 2,252,000,000 2,622,000,000 2,767,000,000 2,747,000,000 2,414,000,000 2,388,000,000 2,482,000,000 2,475,000,000 2,112,000,000 2,192,000,000 2,258,000,000 2,362,000,000 1,938,000,000    
      freight
    44,000,000 42,000,000 44,000,000 41,000,000 44,000,000 43,000,000 45,000,000 42,000,000 44,000,000 44,000,000 47,000,000 41,000,000 44,000,000 44,000,000 47,000,000 42,000,000 47,000,000 47,000,000 50,000,000 43,000,000 43,000,000 41,000,000 38,000,000 39,000,000 43,000,000 42,000,000 44,000,000 42,000,000 45,000,000 43,000,000 44,000,000 42,000,000 45,000,000 42,000,000 44,000,000 42,000,000 42,000,000 42,000,000 45,000,000 42,000,000 45,000,000 44,000,000 46,000,000 44,000,000 47,000,000 45,000,000 44,000,000 40,000,000 41,000,000 41,000,000 43,000,000 39,000,000 42,000,000 39,000,000 42,000,000 37,000,000 36,000,000 35,000,000 36,000,000 31,000,000 31,000,000 31,000,000 33,000,000 30,000,000 31,000,000 28,000,000 29,000,000 30,000,000 37,000,000 37,000,000 37,000,000 34,000,000 35,000,000 32,000,000 33,000,000 30,000,000 31,000,000 30,000,000 38,000,000 35,000,000    
      other
    614,000,000 594,000,000 573,000,000 576,000,000 579,000,000 577,000,000 597,000,000 575,000,000 568,000,000 569,000,000 581,000,000 560,000,000 587,000,000 563,000,000 562,000,000 517,000,000 446,000,000 405,000,000 389,000,000 297,000,000 308,000,000 298,000,000 266,000,000 350,000,000 373,000,000 367,000,000 378,000,000 362,000,000 341,000,000 338,000,000 340,000,000 317,000,000 491,000,000 484,000,000 467,000,000 417,000,000 410,000,000 428,000,000 434,000,000 386,000,000 379,000,000 386,000,000 213,000,000 192,000,000 172,000,000 191,000,000 215,000,000 193,000,000 190,000,000 198,000,000 220,000,000 207,000,000 165,000,000 224,000,000 236,000,000 210,000,000 166,000,000 262,000,000 224,000,000 133,000,000 138,000,000 129,000,000 119,000,000 105,000,000 97,000,000 88,000,000 81,000,000 75,000,000 75,000,000 87,000,000 85,000,000 82,000,000 69,000,000 74,000,000 75,000,000 56,000,000 53,000,000 54,000,000 49,000,000 46,000,000    
      total operating revenues
    7,442,000,000 6,949,000,000 7,244,000,000 6,428,000,000 6,930,000,000 6,870,000,000 7,354,000,000 6,329,000,000 6,823,000,000 6,525,000,000 7,037,000,000 5,706,000,000 6,172,000,000 6,220,000,000 6,728,000,000 4,694,000,000 5,051,000,000 4,679,000,000 4,008,000,000 2,052,000,000 2,013,000,000 1,793,000,000 1,008,000,000 4,234,000,000 5,730,000,000 5,639,000,000 5,909,000,000 5,149,000,000 5,704,000,000 5,575,000,000 5,742,000,000 4,944,000,000 5,274,000,000 5,271,000,000 5,744,000,000 4,883,000,000 5,075,000,000 5,139,000,000 5,384,000,000 4,826,000,000 4,977,000,000 5,318,000,000 5,111,000,000 4,414,000,000 4,628,000,000 4,800,000,000 5,011,000,000 4,166,000,000 4,428,000,000 4,545,000,000 4,643,000,000 4,084,000,000 4,173,000,000 4,309,000,000  3,991,000,000 4,108,000,000 4,311,000,000 4,136,000,000 3,103,000,000 3,114,000,000 3,192,000,000 3,168,000,000 2,630,000,000 2,712,000,000 2,666,000,000 2,616,000,000 2,357,000,000 2,734,000,000 2,891,000,000 2,869,000,000 2,530,000,000 2,492,000,000 2,588,000,000 2,583,000,000 2,198,000,000 2,276,000,000 2,342,000,000 2,449,000,000 2,019,000,000    
      yoy
    7.39% 1.15% -1.50% 1.56% 1.57% 5.29% 4.50% 10.92% 10.55% 4.90% 4.59% 21.56% 22.19% 32.93% 67.86% 128.75% 150.92% 160.96% 297.62% -51.54% -64.87% -68.20% -82.94% -17.77% 0.46% 1.15% 2.91% 4.15% 8.15% 5.77% -0.03% 1.25% 3.92% 2.57% 6.69% 1.18% 1.97% -3.37% 5.34% 9.33% 7.54% 10.79% 2.00% 5.95% 4.52% 5.61% 7.93% 2.01% 6.11% 5.48%  2.33% 1.58% -0.05%  28.62% 31.92% 35.06% 30.56% 17.98% 14.82% 19.73% 21.10% 11.58% -0.80% -7.78% -8.82% -6.84% 9.71% 11.71% 11.07% 15.10% 9.49% 10.50% 5.47% 8.87%        
      qoq
    7.09% -4.07% 12.69% -7.24% 0.87% -6.58% 16.20% -7.24% 4.57% -7.28% 23.33% -7.55% -0.77% -7.55% 43.33% -7.07% 7.95% 16.74% 95.32% 1.94% 12.27% 77.88% -76.19% -26.11% 1.61% -4.57% 14.76% -9.73% 2.31% -2.91% 16.14% -6.26% 0.06% -8.23% 17.63% -3.78% -1.25% -4.55% 11.56% -3.03% -6.41% 4.05% 15.79% -4.62% -3.58% -4.21% 20.28% -5.92% -2.57% -2.11% 13.69% -2.13% -3.16%   -2.85% -4.71% 4.23% 33.29% -0.35% -2.44% 0.76% 20.46% -3.02% 1.73% 1.91% 10.99% -13.79% -5.43% 0.77% 13.40% 1.52% -3.71% 0.19% 17.52% -3.43% -2.82% -4.37% 21.30%     
      operating expenses:
                                                                                       
      salaries, wages, and benefits
    3,380,000,000 3,219,000,000 3,262,000,000 3,102,000,000 3,230,000,000 3,070,000,000 2,999,000,000 2,940,000,000 3,161,000,000 2,728,000,000 2,786,000,000 2,478,000,000 2,605,000,000 2,322,000,000 2,220,000,000 2,229,000,000 2,225,000,000 2,122,000,000 1,825,000,000 1,571,000,000 1,566,000,000 1,678,000,000 1,714,000,000 1,854,000,000 2,247,000,000 2,002,000,000 2,068,000,000 1,976,000,000 1,990,000,000 1,912,000,000 1,927,000,000 1,821,000,000 1,924,000,000 1,795,000,000 1,867,000,000 1,733,000,000 1,709,000,000 1,909,000,000 1,639,000,000 1,539,000,000 1,658,000,000 1,699,000,000 1,607,000,000 1,419,000,000 1,390,000,000 1,363,000,000 1,406,000,000 1,275,000,000 1,284,000,000 1,271,000,000 1,298,000,000 1,183,000,000 1,197,000,000 1,189,000,000 1,222,000,000 1,141,000,000 1,145,000,000 1,146,000,000 1,125,000,000 954,000,000 956,000,000 938,000,000 946,000,000 864,000,000 861,000,000 909,000,000 863,000,000 836,000,000 846,000,000 856,000,000 839,000,000 800,000,000 800,000,000 832,000,000 814,000,000 767,000,000 779,000,000 771,000,000 786,000,000 716,000,000    
      fuel and oil
    1,333,000,000 1,331,000,000 1,326,000,000 1,249,000,000 1,264,000,000 1,417,000,000 1,599,000,000 1,531,000,000 1,703,000,000 1,564,000,000 1,403,000,000 1,547,000,000 1,585,000,000 1,750,000,000 1,636,000,000 1,004,000,000 1,049,000,000 990,000,000 803,000,000 469,000,000 342,000,000 379,000,000 257,000,000 870,000,000 1,105,000,000 1,090,000,000 1,136,000,000 1,015,000,000 1,191,000,000 1,205,000,000 1,202,000,000 1,018,000,000 1,025,000,000 1,003,000,000 990,000,000 922,000,000 951,000,000 941,000,000 903,000,000 852,000,000 798,000,000 936,000,000 1,005,000,000 877,000,000 1,168,000,000 1,386,000,000 1,425,000,000 1,314,000,000 1,367,000,000 1,450,000,000 1,489,000,000 1,457,000,000 1,505,000,000 1,528,000,000 1,577,000,000 1,510,000,000 1,494,000,000 1,586,000,000 1,527,000,000 1,038,000,000 939,000,000 926,000,000 933,000,000 821,000,000 794,000,000 826,000,000 726,000,000 698,000,000 1,067,000,000 1,000,000,000 894,000,000 753,000,000 705,000,000 660,000,000 607,000,000 564,000,000 557,000,000 563,000,000 518,000,000 501,000,000    
      maintenance materials and repairs
    306,000,000 299,000,000 331,000,000 292,000,000 307,000,000 335,000,000 350,000,000 361,000,000 352,000,000 326,000,000 271,000,000 240,000,000 228,000,000 204,000,000 210,000,000 211,000,000 208,000,000 250,000,000 222,000,000 173,000,000 153,000,000 185,000,000 140,000,000 272,000,000 307,000,000 313,000,000 310,000,000 293,000,000 293,000,000 283,000,000 274,000,000 257,000,000 243,000,000 263,000,000 251,000,000 243,000,000 244,000,000 258,000,000 280,000,000 262,000,000 276,000,000 259,000,000 240,000,000 229,000,000 244,000,000 248,000,000 236,000,000 250,000,000 238,000,000 271,000,000 281,000,000 291,000,000 270,000,000 300,000,000 291,000,000 272,000,000 238,000,000 272,000,000 246,000,000 199,000,000 195,000,000 196,000,000 194,000,000 166,000,000 162,000,000 184,000,000 190,000,000 184,000,000 198,000,000 190,000,000 191,000,000 143,000,000 166,000,000 160,000,000 154,000,000 136,000,000 127,000,000 117,000,000 119,000,000 104,000,000    
      landing fees and airport rentals
    540,000,000 548,000,000 567,000,000 522,000,000 494,000,000 493,000,000 511,000,000 464,000,000 465,000,000 457,000,000 459,000,000 408,000,000 380,000,000 395,000,000 388,000,000 346,000,000 364,000,000 376,000,000 403,000,000 313,000,000 318,000,000 308,000,000 275,000,000 339,000,000 327,000,000 345,000,000 357,000,000 333,000,000 323,000,000 337,000,000 344,000,000 330,000,000                                                    
      depreciation and amortization
    371,000,000 394,000,000 400,000,000 396,000,000 407,000,000 438,000,000 404,000,000 408,000,000 415,000,000 375,000,000 367,000,000 365,000,000 367,000,000 335,000,000 325,000,000 324,000,000 323,000,000 322,000,000 315,000,000 312,000,000 315,000,000 315,000,000 313,000,000 311,000,000 313,000,000 308,000,000 302,000,000 297,000,000 331,000,000 301,000,000 292,000,000 277,000,000 279,000,000 302,000,000 319,000,000 318,000,000 318,000,000 315,000,000 299,000,000 290,000,000 264,000,000 258,000,000 250,000,000 244,000,000 251,000,000 238,000,000 228,000,000 221,000,000 224,000,000 221,000,000 213,000,000 210,000,000 224,000,000 217,000,000 202,000,000 201,000,000 192,000,000 191,000,000 176,000,000 155,000,000 159,000,000 161,000,000 154,000,000 154,000,000 154,000,000 162,000,000 150,000,000 150,000,000 154,000,000 152,000,000 148,000,000 145,000,000 144,000,000 140,000,000 137,000,000 135,000,000 134,000,000 131,000,000 127,000,000 124,000,000    
      other operating expenses
    1,121,000,000 1,123,000,000 1,133,000,000 1,090,000,000 950,000,000 1,079,000,000 1,093,000,000 1,018,000,000 1,131,000,000 958,000,000 956,000,000 952,000,000 1,392,000,000 819,000,000 791,000,000 731,000,000 684,000,000 662,000,000 586,000,000 463,000,000 521,000,000 488,000,000 220,000,000 698,000,000 766,000,000 762,000,000 768,000,000 730,000,000 756,000,000 739,000,000 731,000,000 625,000,000 667,000,000 699,000,000 682,000,000 642,000,000 660,000,000 658,000,000 619,000,000 578,000,000 610,000,000 572,000,000 563,000,000 497,000,000 577,000,000 568,000,000 533,000,000 526,000,000 571,000,000 532,000,000 519,000,000 501,000,000 534,000,000 509,000,000 503,000,000 490,000,000 507,000,000 522,000,000 471,000,000 396,000,000 403,000,000 363,000,000 327,000,000 334,000,000 347,000,000 324,000,000 338,000,000 328,000,000 196,000,000 402,000,000 395,000,000 392,000,000 372,000,000 362,000,000 363,000,000 337,000,000 345,000,000 332,000,000 332,000,000 316,000,000    
      total operating expenses
    7,051,000,000 6,914,000,000 7,019,000,000 6,651,000,000 6,652,000,000 6,832,000,000 6,956,000,000 6,722,000,000 7,227,000,000 6,408,000,000 6,242,000,000 5,990,000,000 6,557,000,000 5,825,000,000 5,570,000,000 4,845,000,000 4,856,000,000 3,946,000,000 3,414,000,000 1,853,000,000 3,181,000,000 3,204,000,000 2,135,000,000 4,344,000,000 5,065,000,000 4,820,000,000 4,941,000,000 4,644,000,000 4,884,000,000 4,777,000,000 4,770,000,000 4,328,000,000 4,501,000,000 4,437,000,000 4,494,000,000 4,225,000,000 4,230,000,000 4,444,000,000 4,108,000,000 3,882,000,000 3,951,000,000 4,093,000,000 4,026,000,000 3,634,000,000 4,008,000,000 4,186,000,000 4,236,000,000 3,951,000,000 4,043,000,000 4,155,000,000 4,210,000,000 4,014,000,000 4,082,000,000 4,258,000,000  3,969,000,000 3,961,000,000 4,086,000,000 3,929,000,000 2,989,000,000 2,898,000,000 2,837,000,000 2,805,000,000 2,576,000,000 2,545,000,000 2,644,000,000 2,493,000,000 2,407,000,000 2,665,000,000 2,805,000,000 2,664,000,000 2,442,000,000 2,365,000,000 2,337,000,000 2,255,000,000 2,114,000,000 2,102,000,000 2,081,000,000 2,047,000,000 1,921,000,000    
      operating income
    391,000,000 35,000,000 225,000,000 -223,000,000 278,000,000 38,000,000 398,000,000 -393,000,000 -404,000,000 117,000,000 795,000,000 -284,000,000 -385,000,000 395,000,000 1,158,000,000 -151,000,000 195,000,000 733,000,000 594,000,000 199,000,000 -1,168,000,000 -1,411,000,000 -1,127,000,000 -110,000,000 665,000,000 819,000,000 968,000,000 505,000,000 820,000,000 798,000,000 972,000,000 616,000,000 773,000,000 834,000,000 1,250,000,000 658,000,000 845,000,000 695,000,000 1,276,000,000 944,000,000 1,026,000,000 1,225,000,000 1,085,000,000 780,000,000 620,000,000 614,000,000 775,000,000 215,000,000 385,000,000 390,000,000 433,000,000 70,000,000 91,000,000 51,000,000 460,000,000 22,000,000 147,000,000 225,000,000 207,000,000 114,000,000 216,000,000 355,000,000 363,000,000 54,000,000 167,000,000 22,000,000 123,000,000 -50,000,000 69,000,000 86,000,000 205,000,000 88,000,000 127,000,000 251,000,000 328,000,000 84,000,000 174,000,000 261,000,000 402,000,000 98,000,000    
      yoy
    40.65% -7.89% -43.47% -43.26% -168.81% -67.52% -49.94% 38.38% 4.94% -70.38% -31.35% 88.08% -297.44% -46.11% 94.95% -175.88% -116.70% -151.95% -152.71% -280.91% -275.64% -272.28% -216.43% -121.78% -18.90% 2.63% -0.41% -18.02% 6.08% -4.32% -22.24% -6.38% -8.52% 20.00% -2.04% -30.30% -17.64% -43.27% 17.60% 21.03% 65.48% 99.51% 40.00% 262.79% 61.04% 57.44% 78.98% 207.14% 323.08% 664.71% -5.87% 218.18% -38.10% -77.33% 122.22% -80.70% -31.94% -36.62% -42.98% 111.11% 29.34% 1513.64% 195.12% -208.00% 142.03% -74.42% -40.00% -156.82% -45.67% -65.74% -37.50% 4.76% -27.01% -3.83% -18.41% -14.29%        
      qoq
    1017.14% -84.44% -200.90% -180.22% 631.58% -90.45% -201.27% -2.72% -445.30% -85.28% -379.93% -26.23% -197.47% -65.89% -866.89% -177.44% -73.40% 23.40% 198.49% -117.04% -17.22% 25.20% 924.55% -116.54% -18.80% -15.39% 91.68% -38.41% 2.76% -17.90% 57.79% -20.31% -7.31% -33.28% 89.97% -22.13% 21.58% -45.53% 35.17% -7.99% -16.24% 12.90% 39.10% 25.81% 0.98% -20.77% 260.47% -44.16% -1.28% -9.93% 518.57% -23.08% 78.43% -88.91% 1990.91% -85.03% -34.67% 8.70% 81.58% -47.22% -39.15% -2.20% 572.22% -67.66% 659.09% -82.11% -346.00% -172.46% -19.77% -58.05% 132.95% -30.71% -49.40% -23.48% 290.48% -51.72% -33.33% -35.07% 310.20%     
      operating margin %
    5.25% 0.50% 3.11% -3.47% 4.01% 0.55% 5.41% -6.21% -5.92% 1.79% 11.30% -4.98% -6.24% 6.35% 17.21% -3.22% 3.86% 15.67% 14.82% 9.70% -58.02% -78.69% -111.81% -2.60% 11.61% 14.52% 16.38% 9.81% 14.38% 14.31% 16.93% 12.46% 14.66% 15.82% 21.76% 13.48% 16.65% 13.52% 23.70% 19.56% 20.61% 23.03% 21.23% 17.67% 13.40% 12.79% 15.47% 5.16% 8.69% 8.58% 9.33% 1.71% 2.18% 1.18% Infinity% 0.55% 3.58% 5.22% 5.00% 3.67% 6.94% 11.12% 11.46% 2.05% 6.16% 0.83% 4.70% -2.12% 2.52% 2.97% 7.15% 3.48% 5.10% 9.70% 12.70% 3.82% 7.64% 11.14% 16.41% 4.85%    
      non-operating expenses
                                                                                       
      interest expense
    47,000,000 35,000,000 39,000,000 46,000,000 58,000,000 63,000,000 63,000,000 65,000,000 66,000,000 63,000,000 65,000,000 66,000,000 68,000,000 86,000,000 93,000,000 93,000,000 124,000,000 115,000,000 116,000,000 114,000,000 114,000,000 111,000,000 96,000,000 28,000,000 28,000,000 30,000,000 31,000,000 31,000,000 32,000,000 33,000,000 33,000,000 32,000,000 30,000,000 28,000,000 27,000,000 29,000,000 29,000,000 31,000,000 32,000,000 30,000,000 29,000,000 31,000,000 29,000,000 32,000,000 33,000,000 31,000,000 34,000,000 33,000,000 34,000,000 35,000,000 33,000,000 29,000,000 35,000,000 35,000,000 38,000,000 40,000,000 51,000,000 50,000,000 51,000,000 43,000,000 41,000,000 43,000,000 42,000,000 41,000,000 46,000,000 48,000,000 47,000,000 44,000,000 35,000,000 35,000,000 32,000,000 28,000,000 33,000,000 28,000,000 29,000,000 29,000,000 28,000,000 32,000,000 34,000,000 34,000,000    
      capitalized interest
    -16,000,000 -13,000,000 -13,000,000 -11,000,000 -11,000,000 -9,000,000 -8,000,000 -7,000,000 -8,000,000 -4,000,000 -5,000,000 -6,000,000 -8,000,000 -11,000,000 -11,000,000 -9,000,000 -9,000,000 -9,000,000 -8,000,000 -11,000,000 -12,000,000 -11,000,000 -7,000,000 -5,000,000 -9,000,000 -10,000,000 -9,000,000 -9,000,000 -9,000,000 -9,000,000 -10,000,000 -10,000,000 -11,000,000 -15,000,000 -13,000,000 -11,000,000 -13,000,000 -12,000,000 -11,000,000 -11,000,000 -8,000,000 -9,000,000 -7,000,000 -6,000,000 -5,000,000 -6,000,000 -6,000,000 -7,000,000 -7,000,000 -4,000,000 -8,000,000 -5,000,000 -5,000,000 -5,000,000  -5,000,000 -4,000,000 -3,000,000 -2,000,000 -3,000,000 -3,000,000 -5,000,000 -5,000,000 -5,000,000 -5,000,000 -5,000,000 -5,000,000 -6,000,000 -5,000,000 -6,000,000 -6,000,000 -8,000,000 -11,000,000 -13,000,000 -14,000,000 -13,000,000 -13,000,000 -12,000,000 -14,000,000 -12,000,000    
      interest income
    -33,000,000 -34,000,000 -54,000,000 -84,000,000 -105,000,000 -121,000,000 -130,000,000 -141,000,000 -158,000,000 -156,000,000 -144,000,000 -125,000,000 -116,000,000 -70,000,000 -28,000,000 -3,000,000 -7,000,000 -2,000,000 -2,000,000 -2,000,000 -2,000,000 -4,000,000 -9,000,000 -17,000,000 -20,000,000 -23,000,000 -24,000,000 -23,000,000 -22,000,000 -20,000,000 -15,000,000 -12,000,000 -11,000,000 -9,000,000 -8,000,000 -7,000,000 -7,000,000 -6,000,000 -6,000,000 -5,000,000 -4,000,000 -2,000,000 -2,000,000 -1,000,000 -2,000,000 -2,000,000 -2,000,000 -2,000,000 -1,000,000 -1,000,000 -2,000,000 -2,000,000 -2,000,000 -2,000,000  -2,000,000 -2,000,000 -1,000,000 -4,000,000 -3,000,000 -3,000,000 -2,000,000 -4,000,000 -3,000,000 -2,000,000 -3,000,000 -3,000,000 -4,000,000 -8,000,000 -7,000,000 -5,000,000 -7,000,000 -8,000,000 -9,000,000 -14,000,000 -13,000,000 -22,000,000 -23,000,000 -21,000,000 -18,000,000    
      other (gains) losses
    -7,000,000 -21,000,000 -27,000,000 18,000,000 -250,000 16,000,000   -11,000,000 -23,000,000 -7,000,000 -14,000,000 14,250,000 -39,000,000 68,000,000 144,000,000 10,000,000 29,000,000 -14,000,000 -48,000,000 63,000,000 35,000,000 32,000,000 28,000,000 2,000,000 3,000,000 2,000,000 2,000,000 4,000,000 8,000,000 4,000,000 4,000,000 51,750,000 39,000,000 74,000,000 94,000,000 33,750,000 64,000,000 -43,000,000 114,000,000 98,500,000 272,000,000 88,000,000 32,000,000 4,000,000 66,000,000   -14,500,000 -59,000,000 47,000,000  -29,750,000 -10,000,000 62,000,000 -170,000,000 -153,000,000 405,000,000 -113,000,000 59,000,000 -32,000,000 -13,000,000 146,000,000  500,000 2,000,000 34,000,000 23,000,000   -345,000,000 38,000,000 -71,000,000 -32,000,000 -120,000,000 -68,000,000 80,000,000 186,000,000 -112,000,000 -2,000,000    
      total non-operating income
    -29,500,000 -33,000,000 -55,000,000 -31,000,000                                                                                
      income before income taxes
    408,000,000 68,000,000 280,000,000 -192,000,000 329,000,000 89,000,000 478,000,000 -298,000,000 -286,000,000 237,000,000 886,000,000 -205,000,000 -285,000,000 353,000,000 1,036,000,000 -376,000,000 77,000,000 600,000,000 502,000,000 146,000,000 -1,331,000,000 -1,542,000,000 -1,239,000,000 -144,000,000 666,000,000 819,000,000 968,000,000 504,000,000 817,000,000 786,000,000 960,000,000 602,000,000 738,000,000 791,000,000 1,170,000,000 553,000,000 809,000,000 618,000,000 1,304,000,000 816,000,000 847,000,000 933,000,000 977,000,000 723,000,000 301,000,000 525,000,000 746,000,000 244,000,000 333,000,000 419,000,000 363,000,000 94,000,000 125,000,000 33,000,000 368,000,000 159,000,000 255,000,000 -226,000,000 275,000,000 18,000,000 213,000,000 332,000,000 184,000,000 17,000,000 184,000,000 -20,000,000 50,000,000 -107,000,000   529,000,000 37,000,000 184,000,000 277,000,000 447,000,000 149,000,000 101,000,000 78,000,000 515,000,000 96,000,000    
      benefit from income taxes
    9,250,000 14,000,000 67,000,000  16,250,000 22,000,000 111,000,000  50,500,000 44,000,000 203,000,000  63,500,000 76,000,000 276,000,000      -189,750,000 -385,000,000 -324,000,000 -50,000,000 126,000,000 160,000,000 227,000,000 117,000,000 134,000,000 171,000,000 227,000,000 139,000,000 228,250,000 288,000,000 424,000,000 202,000,000 254,000,000 230,000,000 484,000,000 305,000,000 246,750,000 349,000,000 369,000,000 270,000,000 142,250,000 196,000,000 281,000,000 92,000,000 83,500,000 160,000,000 139,000,000 35,000,000   140,000,000 61,000,000   114,000,000 13,000,000   72,000,000        208,000,000 3,000,000 72,000,000 115,000,000 169,000,000 56,000,000 44,000,000 30,000,000 182,000,000 35,000,000    
      net income
    323,000,000 54,000,000 213,000,000 -149,000,000 261,000,000 67,000,000 367,000,000 -231,000,000 -252,000,000 193,000,000 683,000,000 -159,000,000 -220,000,000 277,000,000 760,000,000 -278,000,000 68,000,000 446,000,000 348,000,000 116,000,000 -908,000,000 -1,157,000,000 -915,000,000 -94,000,000 513,000,000 659,000,000 741,000,000 387,000,000 654,000,000 615,000,000 733,000,000 463,000,000 1,888,000,000 503,000,000 746,000,000 351,000,000 522,000,000 388,000,000 820,000,000 511,000,000 536,000,000 584,000,000 608,000,000 453,000,000 190,000,000 329,000,000 465,000,000 152,000,000 212,000,000 259,000,000 224,000,000 59,000,000 78,000,000 16,000,000 228,000,000 98,000,000 152,000,000 -140,000,000 161,000,000 5,000,000 131,000,000 205,000,000 112,000,000 11,000,000 115,000,000 -16,000,000 54,000,000 -91,000,000 -56,000,000 -120,000,000 321,000,000 34,000,000 112,000,000 162,000,000 278,000,000 93,000,000 57,000,000 48,000,000 333,000,000 61,000,000    
      yoy
    23.75% -19.40% -41.96% -35.50% -203.57% -65.28% -46.27% 45.28% 14.55% -30.32% -10.13% -42.81% -423.53% -37.89% 118.39% -339.66% -107.49% -138.55% -138.03% -223.40% -277.00% -275.57% -223.48% -124.29% -21.56% 7.15% 1.09% -16.41% -65.36% 22.27% -1.74% 31.91% 261.69% 29.64% -9.02% -31.31% -2.61% -33.56% 34.87% 12.80% 182.11% 77.51% 30.75% 198.03% -10.38% 27.03% 107.59% 157.63% 171.79% 1518.75% -1.75% -39.80% -48.68% -111.43% 41.61% 1860.00% 16.03% -168.29% 43.75% -54.55% 13.91% -1381.25% 107.41% -112.09% -305.36% -86.67% -83.18% -367.65% -150.00% -174.07% 15.47% -63.44% 96.49% 237.50% -16.52% 52.46%        
      qoq
    498.15% -74.65% -242.95% -157.09% 289.55% -81.74% -258.87% -8.33% -230.57% -71.74% -529.56% -27.73% -179.42% -63.55% -373.38% -508.82% -84.75% 28.16% 200.00% -112.78% -21.52% 26.45% 873.40% -118.32% -22.15% -11.07% 91.47% -40.83% 6.34% -16.10% 58.32% -75.48% 275.35% -32.57% 112.54% -32.76% 34.54% -52.68% 60.47% -4.66% -8.22% -3.95% 34.22% 138.42% -42.25% -29.25% 205.92% -28.30% -18.15% 15.63% 279.66% -24.36% 387.50% -92.98% 132.65% -35.53% -208.57% -186.96% 3120.00% -96.18% -36.10% 83.04% 918.18% -90.43% -818.75% -129.63% -159.34% 62.50% -53.33% -137.38% 844.12% -69.64% -30.86% -41.73% 198.92% 63.16% 18.75% -85.59% 445.90%     
      net income margin %
    4.34% 0.78% 2.94% -2.32% 3.77% 0.98% 4.99% -3.65% -3.69% 2.96% 9.71% -2.79% -3.56% 4.45% 11.30% -5.92% 1.35% 9.53% 8.68% 5.65% -45.11% -64.53% -90.77% -2.22% 8.95% 11.69% 12.54% 7.52% 11.47% 11.03% 12.77% 9.36% 35.80% 9.54% 12.99% 7.19% 10.29% 7.55% 15.23% 10.59% 10.77% 10.98% 11.90% 10.26% 4.11% 6.85% 9.28% 3.65% 4.79% 5.70% 4.82% 1.44% 1.87% 0.37% Infinity% 2.46% 3.70% -3.25% 3.89% 0.16% 4.21% 6.42% 3.54% 0.42% 4.24% -0.60% 2.06% -3.86% -2.05% -4.15% 11.19% 1.34% 4.49% 6.26% 10.76% 4.23% 2.50% 2.05% 13.60% 3.02%    
      net income per share
    0.61 0.1 0.4 -0.26 0.44 0.11 0.61 -0.39 -0.42 0.32 1.15 -0.27 -0.37 0.47 1.29 -0.47 0.11 0.75 0.59 0.2 -1.55 -1.96 -1.63 -0.18 0.98 1.24 1.37 0.7 0.783 1.08 1.27 0.79 3.15 0.84 1.24 0.57 0.85 0.63 1.3 0.8 0.83 0.89 0.91 0.67 0.28 0.48 0.67 0.22 0.3 0.37 0.31 0.08 0.11 0.02 0.3 0.13 0.2 -0.18 0.21 0.01 0.18 0.27 0.15 0.01 0.15 -0.02 0.07 -0.12 -0.08 -0.16 0.44 0.05 0.15 0.22 0.36 0.12 0.07 0.06 0.42 0.08    
      comprehensive income
    34.25 83 202  41.75 19 359  143.5 336 544 -306 169 -223 674 225 325 577 544 180 -551.75 -1,129 -859 -219 426 566 675 463 2,490,997,771 729 953 547 446.75 630 795 362 568.5 517 1,086 668 370 345 686 449 214.25 126 588 143 136.75 393 87 67 110.5 211 -35 265                            
      weighted-average shares outstanding
                                                                                       
      basic
     523 538 584  599 599 597  596 595 594  593 593 592  592 591 591  590 563 515  533 542 551  569 578 587  597 604 613  618 632 641  655 665 674  683 690 698  703 714 725  739 757 771                        803    
      diluted
     526 541 584  601 643 597  640 639 594  639 635 592  607 615 609  590 563 515  534 542 552  569 579 588  598 605 614  625 639 648  663 673 682  691 698 707  711 722 727  740 764 772                        836    
      benefit for income taxes
       -43,000,000    -67,000,000    -46,000,000    -98,000,000 9,000,000 154,000,000 154,000,000 30,000,000                                 54,250,000 17,000,000   10,500,000 -86,000,000   51,000,000 127,000,000   -1,000,000 -4,000,000 -4,000,000 -16,000,000                
      comprehensive loss
       -148    -212                                                                            
      other incomes
                                                                                       
      total other income
        -56,500,000 -51,000,000 -80,000,000 -95,000,000                                        -29,000,000    -24,000,000                                
      other gains
          -5,000,000 -12,000,000                                       3,000,000 -53,000,000    -46,000,000                                
      loss on extinguishment of debt
                1,000,000 76,000,000                                                                      
      total other incomes
            -72,750,000 -120,000,000 -91,000,000 -79,000,000 97,250,000 42,000,000 122,000,000 225,000,000 118,000,000 133,000,000 92,000,000 53,000,000 163,000,000 131,000,000 112,000,000 34,000,000 250,000   1,000,000 9,750,000 12,000,000 12,000,000 14,000,000 57,250,000 43,000,000 80,000,000 105,000,000 44,250,000 77,000,000 -28,000,000 128,000,000 114,500,000 292,000,000 108,000,000 57,000,000 22,500,000 89,000,000 29,000,000  4,250,000 -29,000,000 70,000,000  -7,000,000 18,000,000  -137,000,000 -108,000,000 451,000,000 -68,000,000 96,000,000 3,000,000 23,000,000 179,000,000  28,750,000 42,000,000 73,000,000 57,000,000   -324,000,000 51,000,000 -57,000,000 -26,000,000 -119,000,000 -65,000,000 73,000,000 183,000,000 -113,000,000 2,000,000    
      operating expenses, net:
                                                                                       
      payroll support and voluntary employee programs
                    3,000,000 -776,000,000 -740,000,000 -1,448,000,000 -34,000,000 -149,000,000                                                              
      payroll support, voluntary separation
                          -784,000,000                                                             
      cash dividends declared per common share
                                0.111 0.16 0.16 0.125 0.125 0.125 0.125 0.1 0.1 0.1 0.1 0.075 0.075 0.075 0.075 0.06 0.06 0.06 0.06 0.04 0.04 0.04 0.04 0.01 0.01 0.01 0.01 0.005 0.004 0.005 0.005 0.005 0.004 0.005                      
      aircraft rentals
                                    40,000,000 51,000,000 53,000,000 54,000,000 55,000,000 56,000,000 59,000,000 59,000,000 59,000,000 60,000,000 59,000,000 60,000,000 68,000,000 71,000,000 75,000,000 81,000,000 84,000,000 92,000,000 92,000,000 93,000,000 85,000,000 92,000,000 90,000,000 88,000,000 94,000,000 90,000,000 79,000,000 46,000,000 45,000,000 43,000,000 45,000,000 47,000,000 46,000,000 47,000,000 47,000,000 45,000,000 39,000,000 38,000,000 38,000,000 38,000,000 40,000,000 38,000,000 40,000,000 39,000,000 39,000,000 39,000,000 39,000,000 40,000,000    
      landing fees and other rentals
                                    323,000,000 324,000,000 332,000,000 313,000,000 293,000,000 307,000,000 309,000,000 302,000,000 279,000,000 303,000,000 299,000,000 285,000,000 262,000,000 289,000,000 295,000,000 266,000,000 255,000,000 290,000,000 292,000,000 266,000,000 252,000,000 278,000,000 260,000,000 254,000,000 254,000,000 257,000,000 247,000,000 201,000,000 201,000,000 210,000,000 206,000,000 190,000,000 181,000,000 192,000,000 179,000,000 166,000,000 165,000,000 167,000,000 159,000,000 171,000,000 138,000,000 145,000,000 140,000,000 136,000,000 121,000,000 128,000,000 126,000,000 120,000,000    
      special revenue adjustment
                                             172,000,000                                          
      acquisition and integration
                                            7,000,000 6,000,000 3,000,000 23,000,000 48,000,000 23,000,000 38,000,000 18,000,000 20,000,000 28,000,000 26,000,000 13,000,000 15,000,000 145,000,000 11,000,000 13,000,000 37,000,000 22,000,000 58,000,000                         
      see accompanying notes.
                                                                                       
      weighted-average shares
                                                                                       
      outstanding:
                                                                                       
      basic
                                                            193.25 792 780 748 186.25 746 745 743 185.25 742 741 740 183.5 736 732 733 191.25 739 769 786 199 789 798     
      diluted
                                                            193.5 792 787 749 186.5 747 746 744 185.25 742 741 740 184.75 736 737 734 194.25 752 780 800 206.75 821 825     
      other expenses
                                                                                       
      other losses
                                                                   4,000,000     -9,500,000 269,000,000              
      total other expenses
                                                                   37,000,000     4,750,000 291,000,000              
      provision for income taxes
                                                                   6,000,000     31,750,000 -85,000,000              
      income (loss) before income taxes
                                                                        90,250,000 -205,000,000              
      weighted average shares
                                                                                       
      weighted-average shares outstanding:
                                                                                       
      basic
     523 538 584  599 599 597  596 595 594  593 593 592  592 591 591  590 563 515  533 542 551  569 578 587  597 604 613  618 632 641  655 665 674  683 690 698  703 714 725  739 757 771                        803    
      diluted
     526 541 584  601 643 597  640 639 594  639 635 592  607 615 609  590 563 515  534 542 552  569 579 588  598 605 614  625 639 648  663 673 682  691 698 707  711 722 727  740 764 772                        836    
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2004-12-31 2003-12-31 
                                                                                         
        assets
                                                                                         
        current assets:
                                                                                         
        cash and cash equivalents
      3,231,000,000 2,902,000,000 3,475,000,000 8,134,000,000 7,509,000,000 8,503,000,000 8,142,000,000 8,367,000,000 9,288,000,000 9,497,000,000 9,158,000,000 8,359,000,000 9,492,000,000 10,443,000,000 13,234,000,000 13,098,000,000 12,480,000,000 12,980,000,000 14,124,000,000 11,971,000,000 11,063,000,000 12,109,000,000 12,351,000,000 3,940,000,000 2,548,000,000 2,488,000,000 2,446,000,000 2,344,000,000 1,854,000,000 2,104,000,000 2,114,000,000 1,822,000,000 1,495,000,000 1,460,000,000 1,537,000,000 1,851,000,000 1,680,000,000 1,966,000,000 2,040,000,000 2,388,000,000 1,583,000,000 1,740,000,000 1,772,000,000 2,025,000,000 1,282,000,000 1,832,000,000 1,882,000,000 1,741,000,000 1,355,000,000 1,333,000,000 1,489,000,000 1,338,000,000 1,113,000,000 1,168,000,000 1,083,000,000 1,558,000,000 829,000,000 1,016,000,000 1,595,000,000 2,039,000,000 1,261,000,000 1,031,000,000 989,000,000 1,110,000,000 1,114,000,000 902,000,000 946,000,000 1,145,000,000 1,368,000,000 2,390,000,000 4,653,000,000 2,982,000,000 2,213,000,000 1,050,000,000 1,605,000,000 1,618,000,000 1,390,000,000 1,947,000,000 2,592,000,000 2,600,000,000 2,280,000,000 1,305,000,000  
        short-term investments
       116,000,000 364,000,000 118,000,000 1,216,000,000 879,000,000 1,860,000,000 2,145,000,000 2,186,000,000 2,236,000,000 3,021,000,000 3,315,000,000 2,800,000,000 3,230,000,000 3,197,000,000 2,642,000,000 3,024,000,000 3,024,000,000 2,751,000,000 2,377,000,000 2,271,000,000 2,453,000,000 2,106,000,000 1,605,000,000 1,524,000,000 1,528,000,000 1,540,000,000 1,517,000,000 1,835,000,000 1,716,000,000 1,572,000,000 1,421,000,000 1,778,000,000 1,580,000,000 1,615,000,000 1,631,000,000 1,625,000,000 1,480,000,000 1,375,000,000 1,194,000,000 1,468,000,000 1,356,000,000 1,360,000,000 1,413,000,000 1,706,000,000 1,728,000,000 2,112,000,000 1,757,000,000 1,797,000,000 1,995,000,000 1,904,000,000 1,797,000,000 1,857,000,000 2,067,000,000 2,173,000,000 2,226,000,000 2,315,000,000 2,640,000,000 2,779,000,000 2,426,000,000 2,277,000,000 2,348,000,000 2,135,000,000 1,663,000,000 1,479,000,000 1,352,000,000 1,252,000,000 989,000,000 435,000,000 1,041,000,000 1,185,000,000 140,000,000 566,000,000 507,000,000 509,000,000 315,000,000 369,000,000 354,000,000 396,000,000 320,000,000 251,000,000   
        accounts and other receivables
      1,149,000,000 1,118,000,000 1,013,000,000 1,078,000,000 1,110,000,000 1,177,000,000 1,346,000,000 1,354,000,000 1,154,000,000 1,467,000,000 1,233,000,000 1,250,000,000 1,040,000,000 1,316,000,000 1,389,000,000 1,692,000,000 1,357,000,000 1,479,000,000 1,328,000,000 937,000,000 1,130,000,000 897,000,000 770,000,000 709,000,000 1,086,000,000 867,000,000 777,000,000 784,000,000 568,000,000 784,000,000 765,000,000 680,000,000 662,000,000 579,000,000 576,000,000 585,000,000 546,000,000 848,000,000 524,000,000 511,000,000 474,000,000 465,000,000 462,000,000 499,000,000 365,000,000 468,000,000 447,000,000 457,000,000 419,000,000 463,000,000 514,000,000 429,000,000 332,000,000 430,000,000 502,000,000 367,000,000 299,000,000 369,000,000 389,000,000 282,000,000 195,000,000 289,000,000 277,000,000 235,000,000 169,000,000 225,000,000 237,000,000 231,000,000 209,000,000 385,000,000 447,000,000 350,000,000 279,000,000 326,000,000 321,000,000 278,000,000 241,000,000 266,000,000 269,000,000 250,000,000 258,000,000 248,000,000 132,000,000 
        inventories of parts and supplies, at cost
      775,000,000 792,000,000 773,000,000 786,000,000 800,000,000 770,000,000 784,000,000 812,000,000 807,000,000 799,000,000 714,000,000 736,000,000 790,000,000 776,000,000 751,000,000 623,000,000 537,000,000 511,000,000 464,000,000 448,000,000 414,000,000 426,000,000 422,000,000 518,000,000 529,000,000 528,000,000 510,000,000 484,000,000 461,000,000 483,000,000 459,000,000 430,000,000 420,000,000 438,000,000 365,000,000 356,000,000 337,000,000 331,000,000 328,000,000 289,000,000 311,000,000 308,000,000 326,000,000 304,000,000 342,000,000 429,000,000 435,000,000 438,000,000 467,000,000 521,000,000 461,000,000 480,000,000 469,000,000 544,000,000 446,000,000 432,000,000 401,000,000 459,000,000 394,000,000 320,000,000 243,000,000 231,000,000 226,000,000 227,000,000 221,000,000 196,000,000 200,000,000 171,000,000 203,000,000 286,000,000 301,000,000 265,000,000 259,000,000 204,000,000 182,000,000 174,000,000 181,000,000 181,000,000 189,000,000 158,000,000 150,000,000 137,000,000 93,000,000 
        prepaid expenses and other current assets
      490,000,000 467,000,000 467,000,000 618,000,000 639,000,000 601,000,000 619,000,000 603,000,000 520,000,000 632,000,000 535,000,000 614,000,000 686,000,000 653,000,000 825,000,000 767,000,000 638,000,000 560,000,000 521,000,000 367,000,000 295,000,000 248,000,000 223,000,000 256,000,000 287,000,000 239,000,000 281,000,000 354,000,000 310,000,000 514,000,000 498,000,000 448,000,000 460,000,000 223,000,000 250,000,000 235,000,000 310,000,000 214,000,000 202,000,000 192,000,000 188,000,000 239,000,000 255,000,000 270,000,000 232,000,000 291,000,000 276,000,000 241,000,000 250,000,000 228,000,000 209,000,000 215,000,000 210,000,000 224,000,000 203,000,000 318,000,000 238,000,000 110,000,000 264,000,000 262,000,000 89,000,000 80,000,000 92,000,000 95,000,000 84,000,000 87,000,000 94,000,000 95,000,000 3,000,000 77,000,000 65,000,000 65,000,000 57,000,000 86,000,000 56,000,000 56,000,000 51,000,000 53,000,000 59,000,000 59,000,000 40,000,000 54,000,000 59,000,000 
        total current assets
      5,645,000,000 5,395,000,000 6,092,000,000 10,734,000,000 11,274,000,000 11,930,000,000 12,751,000,000 13,281,000,000 13,955,000,000 14,631,000,000 14,661,000,000 14,274,000,000 14,808,000,000 16,418,000,000 19,396,000,000 18,822,000,000 18,036,000,000 18,554,000,000 19,188,000,000 16,100,000,000 15,173,000,000 16,133,000,000 15,872,000,000 7,028,000,000 5,974,000,000 5,650,000,000 5,554,000,000 5,483,000,000 5,028,000,000 5,601,000,000 5,408,000,000 4,801,000,000 4,815,000,000 4,280,000,000 4,343,000,000 4,658,000,000 4,498,000,000 4,839,000,000 4,469,000,000 4,574,000,000 4,024,000,000 4,573,000,000 4,596,000,000 4,963,000,000 4,404,000,000 4,985,000,000 5,317,000,000 4,814,000,000 4,456,000,000 4,773,000,000 4,864,000,000 4,514,000,000 4,227,000,000 4,652,000,000 4,691,000,000 5,120,000,000 4,345,000,000 4,594,000,000 5,421,000,000 5,329,000,000 4,279,000,000 4,042,000,000 3,971,000,000 3,621,000,000 3,358,000,000 3,127,000,000 3,094,000,000 2,996,000,000 2,893,000,000 5,301,000,000 8,929,000,000 5,050,000,000 4,443,000,000 2,870,000,000 3,306,000,000 2,999,000,000 2,601,000,000 3,301,000,000 4,358,000,000 4,092,000,000  2,172,000,000  
        property and equipment, at cost:
                                                                                         
        flight equipment
      26,293,000,000 26,009,000,000 25,858,000,000 25,345,000,000 25,202,000,000 26,394,000,000 26,274,000,000 26,131,000,000 26,060,000,000 25,724,000,000 25,229,000,000 24,577,000,000 23,725,000,000 22,505,000,000 21,598,000,000 21,147,000,000 21,226,000,000 21,262,000,000 21,258,000,000 20,876,000,000 20,877,000,000 20,909,000,000 20,943,000,000 21,580,000,000 21,629,000,000 21,736,000,000 21,707,000,000 21,666,000,000 21,753,000,000 21,409,000,000 21,084,000,000 21,143,000,000 21,368,000,000 21,004,000,000 20,506,000,000 20,348,000,000 20,275,000,000 19,978,000,000 19,972,000,000 19,735,000,000 19,462,000,000 19,244,000,000 19,148,000,000 18,858,000,000 18,473,000,000 18,019,000,000 17,592,000,000 17,107,000,000 16,937,000,000 16,785,000,000 16,707,000,000 16,643,000,000 16,367,000,000 16,177,000,000 15,952,000,000 15,600,000,000 15,542,000,000 15,451,000,000 15,255,000,000 14,090,000,000 13,991,000,000 13,989,000,000 13,923,000,000 13,824,000,000 13,719,000,000 13,761,000,000 13,690,000,000 13,650,000,000 13,722,000,000 13,887,000,000 13,714,000,000 13,408,000,000 13,019,000,000 12,698,000,000 12,330,000,000 12,041,000,000 11,769,000,000 11,567,000,000 11,145,000,000 10,789,000,000 10,999,000,000 10,037,000,000 8,646,000,000 
        ground property and equipment
      9,163,000,000 8,776,000,000 8,656,000,000 8,474,000,000 8,244,000,000 7,955,000,000 7,704,000,000 7,500,000,000 7,460,000,000 7,344,000,000 7,159,000,000 7,008,000,000 6,855,000,000 6,727,000,000 6,563,000,000 6,472,000,000 6,342,000,000 6,287,000,000 6,183,000,000 6,111,000,000 6,083,000,000 6,005,000,000 5,923,000,000 5,818,000,000 5,672,000,000 5,446,000,000 5,228,000,000 5,082,000,000 4,960,000,000 4,769,000,000 4,626,000,000 4,506,000,000 4,399,000,000 4,219,000,000 4,085,000,000 3,908,000,000 3,779,000,000 3,600,000,000 3,435,000,000 3,308,000,000 3,219,000,000 3,066,000,000 2,972,000,000 2,899,000,000 2,853,000,000 2,866,000,000 2,792,000,000 2,716,000,000 2,666,000,000 2,963,000,000 2,883,000,000 2,754,000,000 2,714,000,000 2,671,000,000 2,570,000,000 2,507,000,000 2,423,000,000 2,303,000,000 2,286,000,000 2,153,000,000 2,122,000,000 2,070,000,000 2,024,000,000 1,965,000,000 1,922,000,000 1,870,000,000 1,849,000,000 1,798,000,000 1,769,000,000 1,655,000,000 1,591,000,000 1,555,000,000 1,515,000,000 1,458,000,000 1,423,000,000 1,384,000,000 1,356,000,000 1,312,000,000 1,292,000,000 1,274,000,000 1,256,000,000 1,202,000,000 1,117,000,000 
        deposits on flight equipment purchase contracts
      401,000,000 402,000,000 221,000,000 344,000,000 413,000,000 428,000,000 466,000,000 395,000,000 236,000,000 345,000,000 324,000,000 283,000,000 376,000,000 587,000,000 637,000,000 254,000,000    53,000,000 305,000,000 311,000,000 306,000,000 305,000,000 248,000,000 933,000,000 818,000,000 780,000,000 775,000,000 820,000,000 858,000,000 913,000,000 919,000,000 1,118,000,000 1,207,000,000 1,208,000,000 1,190,000,000 1,113,000,000 1,184,000,000 1,202,000,000 1,089,000,000 692,000,000 658,000,000 619,000,000 566,000,000 601,000,000 688,000,000 762,000,000 764,000,000 690,000,000 633,000,000 594,000,000 416,000,000 446,000,000 420,000,000 444,000,000 456,000,000 229,000,000 226,000,000 172,000,000 230,000,000 189,000,000 235,000,000 234,000,000 247,000,000 233,000,000 204,000,000 333,000,000 380,000,000 348,000,000 416,000,000 541,000,000 626,000,000 655,000,000 741,000,000 757,000,000 734,000,000 636,000,000 704,000,000 691,000,000 660,000,000 682,000,000 787,000,000 
        assets constructed for others
      88,000,000 88,000,000 88,000,000 88,000,000 88,000,000 87,000,000 77,000,000 71,000,000 62,000,000 51,000,000 43,000,000 34,000,000 28,000,000 19,000,000 12,000,000 9,000,000 6,000,000 3,000,000  341,000,000 309,000,000 274,000,000 239,000,000 198,000,000 164,000,000 172,000,000 144,000,000 120,000,000 1,768,000,000 1,718,000,000 1,664,000,000 1,607,000,000 1,543,000,000 1,460,000,000 1,404,000,000 1,319,000,000 1,220,000,000 1,150,000,000 1,067,000,000 986,000,000 915,000,000 823,000,000 745,000,000 686,000,000 621,000,000 570,000,000 515,000,000 478,000,000 453,000,000                                   
        property and equipment, at cost: - sum
      35,945,000,000 35,275,000,000 34,823,000,000 34,251,000,000 33,947,000,000 34,864,000,000 34,521,000,000 34,097,000,000 33,818,000,000 33,464,000,000 32,755,000,000 31,902,000,000 30,984,000,000 29,838,000,000 28,810,000,000 27,882,000,000  27,552,000,000  27,381,000,000   27,411,000,000 27,901,000,000 27,713,000,000 28,287,000,000 27,897,000,000 27,648,000,000 29,256,000,000  28,232,000,000 28,169,000,000 28,229,000,000 27,801,000,000 27,202,000,000 26,783,000,000 26,464,000,000 25,841,000,000 25,658,000,000 25,231,000,000 24,685,000,000 23,825,000,000 23,523,000,000 23,062,000,000 22,513,000,000 22,056,000,000 21,587,000,000 21,063,000,000 20,820,000,000 20,438,000,000 20,223,000,000 19,991,000,000 19,497,000,000 19,294,000,000 18,942,000,000 18,551,000,000        16,023,000,000 15,888,000,000     15,890,000,000              
        less allowance for depreciation and amortization
      15,700,000,000 15,570,000,000 15,422,000,000 15,094,000,000 14,891,000,000 15,091,000,000 14,856,000,000 14,536,000,000 14,443,000,000 14,389,000,000 14,159,000,000 13,878,000,000 13,642,000,000 13,501,000,000 13,216,000,000 12,945,000,000 12,732,000,000 12,496,000,000 12,199,000,000 11,733,000,000 11,743,000,000 11,443,000,000 11,164,000,000 10,912,000,000 10,688,000,000 10,445,000,000 10,164,000,000 9,875,000,000 9,731,000,000 9,437,000,000 9,166,000,000 9,396,000,000 9,690,000,000 9,645,000,000 9,523,000,000 9,497,000,000 9,420,000,000 9,295,000,000 9,364,000,000 9,267,000,000 9,084,000,000 8,896,000,000 8,663,000,000 8,455,000,000 8,221,000,000 8,091,000,000 7,860,000,000 7,643,000,000 7,431,000,000 7,235,000,000 7,059,000,000 6,861,000,000 6,731,000,000 6,722,000,000 6,600,000,000 6,456,000,000 6,294,000,000 6,149,000,000 6,046,000,000 5,919,000,000 5,765,000,000 5,682,000,000 5,555,000,000 5,402,000,000 5,254,000,000 5,166,000,000 5,082,000,000 4,968,000,000 4,831,000,000 4,692,000,000 4,551,000,000 4,413,000,000 4,286,000,000 4,144,000,000 4,007,000,000 3,897,000,000 3,765,000,000 3,640,000,000 3,517,000,000 3,403,000,000 3,488,000,000 3,198,000,000 3,107,000,000 
        goodwill
      970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 970,000,000 971,000,000                         
        operating lease right-of-use assets
      1,089,000,000 1,169,000,000 1,243,000,000 1,303,000,000 1,369,000,000 1,101,000,000 1,132,000,000 1,182,000,000 1,223,000,000 1,288,000,000 1,335,000,000 1,380,000,000 1,394,000,000 1,449,000,000 1,495,000,000 1,555,000,000 1,590,000,000 1,611,000,000 1,969,000,000 2,032,000,000 1,892,000,000 1,767,000,000 1,845,000,000 1,278,000,000 1,349,000,000 1,352,000,000 1,424,000,000 1,508,000,000                                                        
        other assets
      1,112,000,000 1,073,000,000 1,006,000,000 1,048,000,000 1,081,000,000 1,073,000,000 1,045,000,000 1,024,000,000 964,000,000 1,016,000,000 957,000,000 898,000,000 855,000,000 772,000,000 847,000,000 978,000,000 882,000,000 919,000,000 837,000,000 743,000,000 722,000,000 679,000,000 662,000,000 620,000,000 577,000,000 653,000,000 693,000,000 725,000,000 720,000,000 1,032,000,000 1,021,000,000 959,000,000 786,000,000 843,000,000 929,000,000 849,000,000 774,000,000 690,000,000 714,000,000 733,000,000 717,000,000 687,000,000 649,000,000 623,000,000 534,000,000 619,000,000 877,000,000 772,000,000 530,000,000 418,000,000 384,000,000 583,000,000 633,000,000 619,000,000 513,000,000 641,000,000 626,000,000 487,000,000 832,000,000 589,000,000 606,000,000 535,000,000 389,000,000 288,000,000 277,000,000 275,000,000 272,000,000 370,000,000 375,000,000 1,676,000,000 3,163,000,000 1,890,000,000 1,455,000,000 987,000,000 1,060,000,000 954,000,000 765,000,000 911,000,000 1,362,000,000 1,280,000,000 1,171,000,000 442,000,000 122,000,000 
        liabilities and stockholders' equity
                                                                                         
        current liabilities:
                                                                                         
        accounts payable
      1,991,000,000 1,708,000,000 1,811,000,000 1,925,000,000 1,818,000,000 1,518,000,000 2,028,000,000 1,949,000,000 1,862,000,000 1,736,000,000 1,882,000,000 1,729,000,000 2,004,000,000 1,553,000,000 1,908,000,000 1,648,000,000 1,282,000,000 1,229,000,000 1,378,000,000 1,094,000,000 931,000,000 980,000,000 970,000,000 1,043,000,000 1,574,000,000 1,274,000,000 1,330,000,000 1,412,000,000 1,416,000,000 1,224,000,000 1,338,000,000 1,243,000,000 1,320,000,000 1,124,000,000 1,217,000,000 1,214,000,000 1,178,000,000 1,021,000,000 1,247,000,000 1,153,000,000 1,188,000,000 1,235,000,000 1,134,000,000 1,145,000,000 1,203,000,000 1,185,000,000 1,292,000,000 1,299,000,000 1,247,000,000 1,134,000,000 1,232,000,000 1,250,000,000 1,107,000,000 1,140,000,000 1,153,000,000 1,208,000,000 1,057,000,000 1,083,000,000 1,049,000,000 916,000,000 739,000,000 707,000,000 787,000,000 690,000,000 746,000,000 694,000,000 732,000,000 693,000,000 668,000,000 701,000,000 903,000,000 787,000,000 759,000,000 735,000,000 746,000,000 643,000,000 643,000,000 568,000,000 609,000,000 585,000,000 524,000,000 420,000,000 405,000,000 
        accrued liabilities
      2,349,000,000 2,091,000,000 2,040,000,000 1,978,000,000 2,206,000,000 2,096,000,000 1,870,000,000 2,400,000,000 3,606,000,000 2,880,000,000 2,468,000,000 2,118,000,000 2,043,000,000 1,881,000,000 1,587,000,000 1,360,000,000 1,624,000,000 1,687,000,000 2,353,000,000 1,665,000,000 2,259,000,000 1,836,000,000 2,372,000,000 1,037,000,000 1,749,000,000 1,456,000,000 1,315,000,000 1,350,000,000 1,749,000,000 1,517,000,000 1,361,000,000 1,134,000,000 1,777,000,000 1,593,000,000 1,561,000,000 1,947,000,000 1,985,000,000 2,146,000,000 1,869,000,000 2,472,000,000 2,591,000,000 2,049,000,000 1,651,000,000 1,874,000,000 1,565,000,000 1,277,000,000 1,645,000,000 1,168,000,000 1,229,000,000 1,172,000,000 1,207,000,000 1,004,000,000 1,102,000,000 1,040,000,000 1,142,000,000 1,024,000,000 996,000,000 1,193,000,000 1,130,000,000 827,000,000 863,000,000 944,000,000 942,000,000 657,000,000 696,000,000 918,000,000 1,029,000,000 1,016,000,000 1,012,000,000 3,540,000,000 6,097,000,000 3,756,000,000 3,107,000,000 1,972,000,000 2,094,000,000 1,748,000,000 1,323,000,000 1,823,000,000 2,635,000,000 2,361,000,000 2,074,000,000 1,047,000,000 650,000,000 
        current operating lease liabilities
      312,000,000 310,000,000 323,000,000 331,000,000 328,000,000 202,000,000 198,000,000 206,000,000 208,000,000 220,000,000 226,000,000 233,000,000 225,000,000 233,000,000 242,000,000 240,000,000 239,000,000 243,000,000 267,000,000 292,000,000 306,000,000 316,000,000 336,000,000 330,000,000 353,000,000 332,000,000 350,000,000 361,000,000                                                        
        air traffic liability
      5,945,000,000 6,862,000,000 6,696,000,000 7,059,000,000 6,294,000,000 6,743,000,000 7,086,000,000 7,642,000,000 6,551,000,000 7,246,000,000 7,121,000,000 7,217,000,000 6,064,000,000 6,368,000,000 6,312,000,000 6,406,000,000 5,566,000,000 5,751,000,000 6,312,000,000 4,906,000,000 3,790,000,000 3,952,000,000 4,988,000,000 5,036,000,000 4,457,000,000 4,930,000,000 4,962,000,000 5,029,000,000 4,134,000,000 4,756,000,000 4,652,000,000 4,420,000,000 3,460,000,000 3,932,000,000 4,012,000,000 4,012,000,000 3,115,000,000 3,677,000,000 3,754,000,000 3,675,000,000 2,990,000,000 3,513,000,000 3,815,000,000 3,613,000,000 2,897,000,000 3,377,000,000 3,485,000,000 3,332,000,000 2,571,000,000 2,981,000,000 3,077,000,000 2,877,000,000 2,170,000,000 2,524,000,000 2,528,000,000 2,556,000,000 1,836,000,000 2,058,000,000 2,149,000,000 1,710,000,000 1,198,000,000 1,423,000,000 1,486,000,000 1,400,000,000 1,044,000,000 1,214,000,000 1,207,000,000 1,251,000,000 963,000,000 1,275,000,000 1,303,000,000 1,198,000,000 931,000,000 1,095,000,000 1,122,000,000 1,010,000,000 799,000,000 968,000,000 958,000,000 929,000,000 649,000,000 529,000,000 462,000,000 
        current maturities of long-term debt
      324,000,000 23,000,000 22,000,000 2,608,000,000 1,630,000,000 2,930,000,000 2,931,000,000 28,000,000 29,000,000 30,000,000 31,000,000 32,000,000 42,000,000 381,000,000 1,662,000,000 415,000,000 453,000,000 225,000,000 2,166,000,000 225,000,000 220,000,000 720,000,000 695,000,000 2,795,000,000 819,000,000 637,000,000 654,000,000 571,000,000 606,000,000 346,000,000 365,000,000 365,000,000 348,000,000 316,000,000 307,000,000 285,000,000 566,000,000 972,000,000 963,000,000 953,000,000 637,000,000 287,000,000 276,000,000 271,000,000 258,000,000 607,000,000 605,000,000 642,000,000 629,000,000 259,000,000 263,000,000 280,000,000 271,000,000 265,000,000 257,000,000 259,000,000 644,000,000 986,000,000 990,000,000 905,000,000 505,000,000 113,000,000 123,000,000 170,000,000 190,000,000 198,000,000 105,000,000 163,000,000 163,000,000 72,000,000 71,000,000 40,000,000 41,000,000 24,000,000 123,000,000 123,000,000 122,000,000 585,000,000 483,000,000 574,000,000 601,000,000 146,000,000 206,000,000 
        total current liabilities
      10,921,000,000 10,994,000,000 10,892,000,000 13,901,000,000 12,276,000,000 13,489,000,000 14,113,000,000 12,225,000,000 12,256,000,000 12,112,000,000 11,728,000,000 11,329,000,000 10,378,000,000 10,416,000,000 11,711,000,000 10,069,000,000 9,164,000,000 9,135,000,000 12,476,000,000 8,182,000,000 7,506,000,000 7,804,000,000 9,361,000,000 10,241,000,000 8,952,000,000 8,629,000,000 8,611,000,000 8,723,000,000 7,905,000,000 7,843,000,000 7,716,000,000 7,162,000,000 6,905,000,000 6,965,000,000 7,097,000,000 7,458,000,000 6,844,000,000 7,816,000,000 7,833,000,000 8,253,000,000 7,406,000,000 7,084,000,000 6,876,000,000 6,903,000,000 5,923,000,000 6,446,000,000 7,027,000,000 6,441,000,000 5,676,000,000 5,546,000,000 5,779,000,000 5,411,000,000 4,650,000,000 4,969,000,000 5,080,000,000 5,047,000,000 4,533,000,000 5,320,000,000 5,318,000,000 4,358,000,000 3,305,000,000 3,187,000,000 3,338,000,000 2,917,000,000 2,676,000,000 3,024,000,000 3,073,000,000 3,123,000,000 2,806,000,000 5,588,000,000 8,374,000,000 5,781,000,000 4,838,000,000 3,826,000,000 4,085,000,000 3,524,000,000 2,887,000,000 3,944,000,000 4,685,000,000 4,449,000,000  2,142,000,000  
        long-term debt less current maturities
      4,577,000,000 4,079,000,000 4,081,000,000 4,086,000,000 5,069,000,000 5,075,000,000 5,065,000,000 7,974,000,000 7,978,000,000 7,984,000,000 7,994,000,000 7,999,000,000 8,046,000,000 8,315,000,000 8,877,000,000 10,309,000,000 10,274,000,000 11,013,000,000 9,188,000,000 10,546,000,000 10,111,000,000 10,135,000,000 8,905,000,000 2,288,000,000 1,846,000,000 2,398,000,000 2,449,000,000 2,602,000,000 2,771,000,000 3,100,000,000 3,155,000,000 3,227,000,000 3,320,000,000 2,763,000,000 2,788,000,000 2,781,000,000 2,821,000,000 2,323,000,000 2,391,000,000 2,355,000,000 2,541,000,000 2,381,000,000 2,411,000,000 2,416,000,000 2,434,000,000 2,125,000,000 2,153,000,000 2,172,000,000 2,191,000,000 2,616,000,000 2,671,000,000 2,708,000,000 2,883,000,000 2,961,000,000 3,019,000,000 3,048,000,000 3,107,000,000 3,220,000,000 3,242,000,000 2,428,000,000 2,875,000,000 3,350,000,000 3,324,000,000 3,305,000,000 3,325,000,000 3,378,000,000 3,278,000,000 3,447,000,000 3,498,000,000 2,580,000,000 2,590,000,000 2,079,000,000 2,050,000,000 1,555,000,000 1,518,000,000 1,556,000,000 1,567,000,000 1,275,000,000 1,350,000,000 1,368,000,000 1,394,000,000 1,700,000,000 1,332,000,000 
        air traffic liability - noncurrent
      1,219,000,000 1,263,000,000 1,600,000,000 1,843,000,000 1,948,000,000 1,957,000,000 1,990,000,000 1,752,000,000 1,728,000,000 1,754,000,000 1,938,000,000 1,980,000,000 2,186,000,000 2,057,000,000 2,206,000,000 2,204,000,000 2,159,000,000 2,485,000,000 2,367,000,000 2,826,000,000 3,343,000,000 3,142,000,000 1,891,000,000 1,175,000,000 1,053,000,000 1,036,000,000 1,022,000,000 985,000,000 936,000,000 827,000,000 878,000,000                                                     
        deferred income taxes
      2,289,000,000 2,210,000,000 2,186,000,000 2,124,000,000 2,167,000,000 2,094,000,000 2,089,000,000 1,981,000,000 2,044,000,000 2,157,000,000 2,057,000,000 1,888,000,000 1,985,000,000 1,995,000,000 2,072,000,000 1,826,000,000 1,770,000,000 1,795,000,000 1,688,000,000 1,660,000,000 1,634,000,000 1,824,000,000 2,114,000,000 2,278,000,000 2,364,000,000 2,643,000,000 2,497,000,000 2,480,000,000 2,427,000,000 2,553,000,000 2,414,000,000 2,216,000,000 2,358,000,000 3,697,000,000 3,540,000,000 3,442,000,000 3,374,000,000 3,209,000,000 2,818,000,000 2,609,000,000 2,490,000,000 465,000,000 421,000,000 452,000,000 477,000,000 237,000,000 165,000,000 180,000,000 168,000,000 233,000,000 287,000,000 255,000,000 246,000,000 219,000,000 284,000,000 219,000,000 263,000,000 1,856,000,000 2,263,000,000 2,496,000,000 214,000,000 63,000,000 252,000,000 291,000,000 291,000,000 365,000,000 365,000,000 365,000,000 365,000,000 2,568,000,000 3,193,000,000 2,611,000,000 2,535,000,000 2,404,000,000 2,328,000,000 2,183,000,000 2,104,000,000 1,834,000,000 1,942,000,000 1,752,000,000 1,896,000,000 1,610,000,000 1,420,000,000 
        noncurrent operating lease liabilities
      768,000,000 846,000,000 915,000,000 970,000,000 1,031,000,000 888,000,000 915,000,000 953,000,000 985,000,000 1,039,000,000 1,077,000,000 1,112,000,000 1,118,000,000 1,183,000,000 1,220,000,000 1,277,000,000 1,315,000,000 1,334,000,000 1,679,000,000 1,722,000,000 1,562,000,000 1,424,000,000 1,486,000,000 936,000,000 978,000,000 1,014,000,000 1,072,000,000 1,150,000,000                                                        
        other noncurrent liabilities
      1,306,000,000 1,144,000,000 1,038,000,000 923,000,000 909,000,000 933,000,000 926,000,000 937,000,000 981,000,000 880,000,000 936,000,000 936,000,000 969,000,000 1,056,000,000 1,096,000,000 1,160,000,000 1,224,000,000 1,098,000,000 1,120,000,000 1,123,000,000 1,247,000,000 1,233,000,000 722,000,000 694,000,000 706,000,000 644,000,000 639,000,000 608,000,000 650,000,000 748,000,000 692,000,000 706,000,000 707,000,000 713,000,000 708,000,000 703,000,000 728,000,000 661,000,000 681,000,000 703,000,000 760,000,000 931,000,000 708,000,000 1,095,000,000 1,255,000,000 658,000,000 710,000,000 726,000,000 771,000,000 1,198,000,000 1,211,000,000 1,153,000,000 1,124,000,000 1,114,000,000 945,000,000 924,000,000 910,000,000    465,000,000                       
        stockholders' equity:
                                                                                         
        common stock
      888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 888,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000 808,000,000  790,000,000  
        capital in excess of par value
      4,322,000,000 4,283,000,000 4,247,000,000 4,210,000,000 4,199,000,000 4,180,000,000 4,151,000,000 4,138,000,000 4,153,000,000 4,135,000,000 4,103,000,000 4,058,000,000 4,037,000,000 3,989,000,000 3,966,000,000 3,940,000,000 4,224,000,000 4,251,000,000 4,269,000,000 4,220,000,000 4,191,000,000 4,175,000,000 4,159,000,000 1,582,000,000 1,581,000,000 1,554,000,000 1,534,000,000 1,513,000,000 1,510,000,000 1,485,000,000 1,469,000,000 1,452,000,000 1,451,000,000 1,436,000,000 1,422,000,000 1,419,000,000 1,410,000,000 1,402,000,000 1,383,000,000 1,387,000,000 1,374,000,000 1,330,000,000 1,319,000,000 1,329,000,000 1,315,000,000 1,280,000,000 1,263,000,000 1,256,000,000 1,231,000,000 1,205,000,000 1,201,000,000 1,214,000,000 1,210,000,000 1,228,000,000 1,224,000,000 1,225,000,000 1,222,000,000 1,222,000,000 1,219,000,000 1,186,000,000 1,183,000,000 1,225,000,000 1,221,000,000 1,219,000,000 1,216,000,000 1,226,000,000 1,223,000,000 1,219,000,000 1,215,000,000 1,221,000,000 1,216,000,000 1,212,000,000 1,207,000,000 1,171,000,000 1,167,000,000 1,155,000,000 1,142,000,000 990,000,000 1,047,000,000 1,024,000,000 424,000,000 299,000,000 258,000,000 
        retained earnings
      16,388,000,000 16,158,000,000 16,199,000,000 16,080,000,000 16,332,000,000 16,178,000,000 16,218,000,000 15,959,000,000 16,297,000,000 16,657,000,000 16,571,000,000 15,995,000,000 16,261,000,000 16,588,000,000 16,311,000,000 15,551,000,000 15,774,000,000 15,706,000,000 15,260,000,000 14,912,000,000 14,777,000,000 15,685,000,000 16,842,000,000 17,757,000,000 17,945,000,000 17,525,000,000 16,962,000,000 16,320,000,000 15,967,000,000 15,402,000,000 14,878,000,000 14,238,000,000 14,621,000,000 12,806,000,000 12,378,000,000 11,708,000,000 11,418,000,000 10,957,000,000 10,631,000,000 9,872,000,000 9,409,000,000 8,922,000,000 8,387,000,000 7,829,000,000 7,416,000,000 7,266,000,000 6,979,000,000 6,555,000,000 6,431,000,000 6,246,000,000 6,015,000,000 5,818,000,000 5,768,000,000 5,700,000,000 5,692,000,000 5,486,000,000 5,395,000,000 5,251,000,000 5,398,000,000 5,399,000,000 5,399,000,000 5,273,000,000 5,075,000,000 4,973,000,000 4,983,000,000 4,876,000,000 4,863,000,000 4,819,000,000 4,919,000,000 4,980,000,000 5,123,000,000 4,811,000,000 4,788,000,000 4,685,000,000 4,534,000,000 4,264,000,000 4,307,000,000 4,369,000,000 4,325,000,000 4,016,000,000 4,557,000,000 4,089,000,000 3,883,000,000 
        accumulated other comprehensive loss
      -24,000,000 -6,000,000 -35,000,000 -24,000,000                -60,000,000 -105,000,000 -102,000,000 -130,000,000 -186,000,000          -136,000,000 -263,000,000 -312,000,000 -323,000,000 -499,000,000 -628,000,000 -894,000,000 -1,051,000,000 -903,000,000 -664,000,000 -742,000,000 -738,000,000 -92,000,000  -12,000,000  -114,000,000 -248,000,000 -111,000,000 -119,000,000 -125,000,000 -320,000,000 -57,000,000 -224,000,000 -513,000,000 -107,000,000  -262,000,000 -453,000,000 -641,000,000 -518,000,000 -578,000,000 -715,000,000 -762,000,000 -922,000,000                
        treasury stock
      -13,593,000,000 -13,547,000,000 -13,299,000,000 -11,789,000,000 -11,044,000,000 -10,798,000,000 -10,803,000,000 -10,808,000,000 -10,823,000,000 -10,827,000,000 -10,831,000,000 -10,836,000,000 -10,843,000,000 -10,846,000,000 -10,850,000,000 -10,853,000,000 -10,860,000,000 -10,862,000,000 -10,865,000,000 -10,867,000,000 -10,875,000,000 -10,877,000,000 -10,881,000,000 -10,886,000,000 -10,441,000,000 -9,893,000,000 -9,394,000,000 -8,946,000,000 -8,452,000,000 -7,954,000,000 -7,456,000,000 -6,957,000,000 -6,462,000,000 -6,114,000,000 -5,815,000,000 -5,419,000,000 -4,872,000,000 -4,621,000,000 -4,373,000,000 -3,677,000,000 -3,182,000,000 -3,189,000,000 -2,692,000,000 -2,322,000,000 -2,026,000,000 -1,833,000,000 -1,645,000,000 -1,417,000,000 -1,131,000,000 -1,132,000,000 -995,000,000 -768,000,000 -675,000,000 -609,000,000 -564,000,000 -365,000,000 -324,000,000 -283,000,000 -116,000,000 -885,000,000 -891,000,000 -903,000,000 -915,000,000 -945,000,000 -963,000,000 -978,000,000 -986,000,000 -996,000,000 -1,005,000,000 -1,011,000,000 -1,116,000,000 -1,138,000,000 -1,103,000,000 -1,118,000,000 -834,000,000 -389,000,000 -390,000,000 -262,000,000 -331,000,000 -92,000,000  -71,000,000  
        total stockholders' equity
      7,981,000,000 7,776,000,000 8,000,000,000 9,365,000,000 10,350,000,000 10,411,000,000 10,465,000,000 10,196,000,000 10,515,000,000 11,054,000,000 10,789,000,000 10,302,000,000 10,687,000,000 10,924,000,000 11,120,000,000 10,417,000,000 10,414,000,000 10,250,000,000 9,688,000,000 9,093,000,000 8,876,000,000 9,769,000,000 10,878,000,000 9,075,000,000 9,832,000,000 9,931,000,000 9,940,000,000 9,791,000,000 9,853,000,000 10,153,000,000 9,997,000,000 9,619,000,000 10,430,000,000 8,800,000,000 8,530,000,000 8,204,000,000 8,441,000,000 8,047,000,000 7,821,000,000 7,496,000,000 7,358,000,000 6,968,000,000 7,158,000,000 6,902,000,000 6,775,000,000 7,429,000,000 7,516,000,000 7,190,000,000 7,336,000,000 7,013,000,000 6,781,000,000 6,961,000,000  7,002,000,000 6,840,000,000 7,097,000,000  6,485,000,000 7,202,000,000 6,587,000,000  5,950,000,000 5,548,000,000 5,537,000,000  5,217,000,000 5,146,000,000 4,928,000,000  7,064,000,000 8,730,000,000 7,185,000,000  6,269,000,000 6,427,000,000 6,554,000,000  6,624,000,000 6,953,000,000     
        accumulated other comprehensive income
          -25,000,000 -37,000,000 11,000,000 19,000,000  201,000,000 58,000,000 197,000,000 344,000,000 305,000,000 805,000,000 891,000,000 388,000,000 267,000,000 136,000,000      -61,000,000 -63,000,000 30,000,000 96,000,000 20,000,000 412,000,000 298,000,000 78,000,000 12,000,000              111,000,000  -3,000,000           79,000,000         -984,000,000 1,066,000,000 2,699,000,000 1,492,000,000 1,241,000,000 723,000,000 752,000,000 716,000,000 582,000,000 719,000,000 1,104,000,000 1,009,000,000 892,000,000 417,000,000 122,000,000 
        construction obligation
                         341,000,000 309,000,000 274,000,000 239,000,000 198,000,000 164,000,000 172,000,000 144,000,000 120,000,000 1,701,000,000 1,658,000,000 1,613,000,000 1,563,000,000 1,390,000,000 1,311,000,000 1,258,000,000 1,175,000,000 1,078,000,000 989,000,000 903,000,000 825,000,000 757,000,000 684,000,000 632,000,000 595,000,000 554,000,000 521,000,000 468,000,000 450,000,000 437,000,000                                   
        air traffic liability - loyalty noncurrent
                                     1,010,000,000                                                    
        deferred gains from sale and leaseback of aircraft
                                                       54,000,000 57,000,000 60,000,000 63,000,000 66,000,000 69,000,000 72,000,000 75,000,000 78,000,000 82,000,000 85,000,000 88,000,000 92,000,000 95,000,000 98,000,000 102,000,000 125,000,000 128,000,000 111,000,000 105,000,000 97,000,000 100,000,000 103,000,000 106,000,000 110,000,000 113,000,000 117,000,000 120,000,000 124,000,000 128,000,000 132,000,000 136,000,000 152,000,000 168,000,000 
        liabilities and stockholders’ equity
                                                                                         
        stockholders’ equity:
                                                                                         
        total stockholders’ equity
                                                          6,992,000,000    6,877,000,000    6,237,000,000    5,466,000,000    4,953,000,000    6,941,000,000    6,449,000,000   6,765,000,000  5,524,000,000  
        see accompanying notes.
                                                                                         
        other non-current liabilities
                                                               926,000,000 838,000,000 460,000,000  424,000,000 490,000,000 423,000,000 493,000,000 409,000,000                  
        commitments and contingencies
                                                                                         
        other deferred liabilities
                                                                        481,000,000 675,000,000 1,042,000,000 278,000,000 275,000,000 272,000,000 302,000,000 360,000,000 382,000,000 304,000,000 333,000,000 286,000,000 286,000,000 257,000,000 269,000,000 209,000,000 183,000,000 
        fuel derivative contracts
                                                                           1,122,000,000 2,278,000,000 1,248,000,000 1,069,000,000 697,000,000 633,000,000 558,000,000 369,000,000       
        fuel hedge contracts
                                                                                   500,000,000 853,000,000 705,000,000 641,000,000 428,000,000 164,000,000 
        current and cash equivalents
                                                                                        1,865,000,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 
                                                                                        
          cash flows from operating activities:
                                                                                        
          net income
        387,000,000 -159,000,000   398,000,000 -300,000,000   272,000,000 -490,000,000   262,000,000 -483,000,000 1,038,000,000 -278,000,000 531,000,000 98,000,000 232,000,000 116,000,000 -1,917,000,000 -242,000,000 -821,000,000 -94,000,000 1,641,000,000 -82,000,000 354,000,000 387,000,000 1,850,000,000 -118,000,000 270,000,000 463,000,000 2,985,000,000 -243,000,000 395,000,000 351,000,000 1,856,000,000 -432,000,000 309,000,000 511,000,000 1,597,000,000 -24,000,000 155,000,000 453,000,000 807,000,000 -136,000,000 313,000,000 152,000,000 495,000,000 35,000,000 165,000,000 59,000,000 405,000,000 -212,000,000 130,000,000 98,000,000 318,000,000 -301,000,000 156,000,000 5,000,000 254,000,000 93,000,000 101,000,000 11,000,000 115,000,000 -70,000,000 145,000,000 -91,000,000 298,000,000 -441,000,000 287,000,000 34,000,000 483,000,000 -116,000,000 185,000,000 93,000,000 451,000,000 -285,000,000 272,000,000 61,000,000 
          adjustments to reconcile net income to cash from operating activities:
                                                                                        
          depreciation and amortization
        1,166,000,000 -6,000,000 4,000,000 396,000,000 1,219,000,000 34,000,000 -4,000,000 408,000,000 1,147,000,000 8,000,000 2,000,000 365,000,000 1,016,000,000 10,000,000 1,000,000 324,000,000 950,000,000 7,000,000 3,000,000 312,000,000 940,000,000 2,000,000 2,000,000 311,000,000 911,000,000 6,000,000 5,000,000 297,000,000 900,000,000 9,000,000 15,000,000 277,000,000 916,000,000 -17,000,000 1,000,000 318,000,000 906,000,000 16,000,000 9,000,000 290,000,000 757,000,000 8,000,000 6,000,000 244,000,000 700,000,000 10,000,000 7,000,000 221,000,000 646,000,000 8,000,000 3,000,000 210,000,000 627,000,000 15,000,000 1,000,000 201,000,000 524,000,000 15,000,000 21,000,000 155,000,000 467,000,000 7,000,000 154,000,000 454,000,000 12,000,000 150,000,000 447,000,000 4,000,000 3,000,000 145,000,000 415,000,000 3,000,000 2,000,000 135,000,000 384,000,000 4,000,000 3,000,000 124,000,000 
          impairment of long-lived assets
                    31,000,000 -11,000,000 -1,000,000 16,000,000                                                                 
          unrealized mark-to-market adjustment on forward contract
                                                                                        
          deferred income taxes
        108,000,000 -52,000,000 109,000,000 -43,000,000 113,000,000 -91,000,000 178,000,000 -68,000,000 102,000,000 -152,000,000 261,000,000 -52,000,000 152,000,000 -196,000,000 369,000,000 -97,000,000 -88,000,000 97,000,000 -35,000,000 5,000,000 -418,000,000 -117,000,000 -132,000,000 -49,000,000 -229,000,000 138,000,000 23,000,000 13,000,000 197,000,000 -27,000,000 59,000,000 72,000,000 -1,294,000,000 13,000,000 7,000,000 62,000,000 140,000,000 261,000,000 28,000,000 26,000,000 -27,000,000 -105,000,000 4,000,000 19,000,000 109,000,000 403,000,000 -103,000,000 92,000,000 21,000,000 8,000,000 19,000,000 2,000,000 169,000,000 58,000,000 10,000,000 14,000,000 213,000,000 -185,000,000 67,000,000 28,000,000 113,000,000 -43,000,000 51,000,000 12,000,000 64,000,000   -16,000,000 104,000,000 -183,000,000 140,000,000 -5,000,000 223,000,000 -20,000,000 83,000,000 42,000,000 253,000,000 -155,000,000 144,000,000 35,000,000 
          gain on sale-leaseback transactions
           -3,000,000                                                                             
          changes in certain assets and liabilities:
                                                                                        
          accounts and other receivables
        134,000,000 -173,000,000 33,000,000 57,000,000 -174,000,000 159,000,000 342,000,000 -308,000,000 127,000,000 -260,000,000 276,000,000 -232,000,000 364,000,000 -381,000,000 773,000,000 -334,000,000 -678,000,000 540,000,000 -329,000,000 -234,000,000 -171,000,000 -4,000,000 -302,000,000 183,000,000 -6,000,000 -106,000,000 240,000,000 -222,000,000 130,000,000 68,000,000 -66,000,000 -15,000,000   47,000,000 -35,000,000 270,000,000 -306,000,000 7,000,000 -21,000,000 -92,000,000 -37,000,000 171,000,000 -130,000,000 76,000,000 -32,000,000 82,000,000 -72,000,000 -90,000,000 124,000,000 46,000,000 -97,000,000 -31,000,000   -68,000,000 -37,000,000 32,000,000 66,000,000 -87,000,000 -68,000,000 84,000,000 25,000,000 -67,000,000 28,000,000   -22,000,000 9,000,000 159,000,000 -27,000,000 -70,000,000 -33,000,000 38,000,000 -6,000,000 -37,000,000 -8,000,000 21,000,000 -5,000,000 -13,000,000 
          other assets
        404,000,000 -209,000,000 67,000,000 145,000,000 5,000,000 -45,000,000 46,000,000 -14,000,000 95,000,000 -93,000,000 8,000,000 50,000,000 -96,000,000 31,000,000 43,000,000 -44,000,000 16,000,000 43,000,000 27,000,000 -11,000,000 331,000,000 -140,000,000 166,000,000 58,000,000 160,000,000 -7,000,000 57,000,000 29,000,000 -197,000,000 5,000,000 143,000,000 -178,000,000 -198,000,000 55,000,000 -38,000,000 -81,000,000 -103,000,000 33,000,000 -53,000,000 4,000,000 70,000,000 40,000,000 -20,000,000 13,000,000 136,000,000 27,000,000 -28,000,000 7,000,000 17,000,000 -69,000,000 31,000,000 -25,000,000                             
          accounts payable and accrued liabilities
        207,000,000 106,000,000 31,000,000 -126,000,000 -1,167,000,000 380,000,000 321,000,000 -897,000,000 1,034,000,000 -12,000,000 436,000,000 -72,000,000 1,006,000,000 -398,000,000 151,000,000 177,000,000 986,000,000 -1,937,000,000 1,055,000,000 -66,000,000 205,000,000 -1,174,000,000 2,491,000,000 -1,291,000,000 192,000,000 195,000,000 168,000,000 -257,000,000 384,000,000 -259,000,000 921,000,000 -501,000,000 157,000,000 427,000,000 -431,000,000 93,000,000 -21,000,000 535,000,000 -601,000,000 313,000,000 581,000,000 514,000,000 -311,000,000 177,000,000 570,000,000 -958,000,000 400,000,000 24,000,000 441,000,000 -260,000,000 42,000,000 120,000,000 373,000,000   225,000,000 292,000,000 -106,000,000 -171,000,000 238,000,000 198,000,000 -284,000,000 364,000,000 -85,000,000 206,000,000 -251,000,000 57,000,000 47,000,000 466,000,000 -4,470,000,000 1,535,000,000 616,000,000 1,753,000,000 -591,000,000 64,000,000 383,000,000 521,000,000 -999,000,000 -62,000,000 317,000,000 
          air traffic liability
        -906,000,000 434,000,000 -1,266,000,000 660,000,000 340,000,000 -60,000,000 -1,432,000,000 1,115,000,000 88,000,000 78,000,000 -1,084,000,000 947,000,000 618,000,000 -1,000,000 -977,000,000 885,000,000 1,033,000,000 -1,388,000,000 347,000,000 599,000,000 1,407,000,000 -451,000,000 -34,000,000 701,000,000 457,000,000 13,000,000 -974,000,000 944,000,000 454,000,000 -48,000,000 -766,000,000 866,000,000 425,000,000 -81,000,000 -896,000,000 897,000,000 202,000,000 -156,000,000 -606,000,000 685,000,000 395,000,000 -502,000,000 -516,000,000 717,000,000 434,000,000 -261,000,000 -608,000,000 761,000,000 495,000,000 -294,000,000 -508,000,000 707,000,000 339,000,000   720,000,000 354,000,000 -156,000,000 -448,000,000 512,000,000 216,000,000 -149,000,000 -270,000,000 356,000,000 75,000,000 49,000,000 -331,000,000 288,000,000 60,000,000 -133,000,000 -162,000,000 267,000,000 158,000,000 -139,000,000 -98,000,000 210,000,000 140,000,000 -19,000,000 -251,000,000 280,000,000 
          other liabilities
        -27,000,000 -12,000,000 91,000,000 -63,000,000 -179,000,000 27,000,000 26,000,000 -71,000,000 -48,000,000 -45,000,000 3,000,000 -47,000,000 -251,000,000 20,000,000 2,000,000 -105,000,000 -15,000,000 -24,000,000 58,000,000 -122,000,000 -200,000,000 -32,000,000 58,000,000 -132,000,000 -190,000,000 -33,000,000 15,000,000 -69,000,000                                                     
          cash collateral provided to derivative counterparties
           -22,000,000                                    -231,000,000                                         
          other
        107,000,000 -35,000,000 77,000,000 8,000,000 -81,000,000 6,000,000 26,000,000 -39,000,000 -190,000,000 137,000,000 -58,000,000 -60,000,000 53,000,000 -62,000,000 6,000,000 31,000,000 48,000,000 -37,000,000 2,000,000 15,000,000 -76,000,000 -5,000,000 47,000,000 -61,000,000 -65,000,000 -14,000,000 3,000,000 -32,000,000 -59,000,000   -40,000,000 -113,000,000 29,000,000 7,000,000 -44,000,000 -122,000,000 -8,000,000 14,000,000 -49,000,000 -154,000,000 -256,000,000 -17,000,000 -35,000,000 -251,000,000 -28,000,000 19,000,000 -17,000,000 -9,000,000 78,000,000 2,000,000 3,000,000 -51,000,000 170,000,000 -129,000,000 143,000,000 192,000,000 80,000,000 -248,000,000 170,000,000 -384,000,000 433,000,000 -392,000,000 -18,000,000 92,000,000 44,000,000 12,000,000 -27,000,000 -143,000,000 115,000,000 -147,000,000 -51,000,000 -145,000,000 -12,000,000 139,000,000 -133,000,000 5,000,000 99,000,000 55,000,000 -57,000,000 
          net cash from operating activities
        1,555,000,000 -114,000,000 -459,000,000 860,000,000 349,000,000 136,000,000 81,000,000 -104,000,000 2,548,000,000 -800,000,000 710,000,000 706,000,000 3,556,000,000 -1,672,000,000 835,000,000 1,071,000,000 2,897,000,000 -2,580,000,000 1,360,000,000 645,000,000 -77,000,000 -1,947,000,000 1,274,000,000 -377,000,000 2,896,000,000 125,000,000 -139,000,000 1,105,000,000 3,622,000,000 -360,000,000 629,000,000 1,002,000,000 2,933,000,000 250,000,000 -879,000,000 1,625,000,000 3,437,000,000 -256,000,000 -504,000,000 1,616,000,000 2,402,000,000 209,000,000 -825,000,000 1,452,000,000 2,662,000,000 -1,098,000,000 219,000,000 1,119,000,000 2,049,000,000 -350,000,000 -205,000,000 983,000,000 1,600,000,000 319,000,000 -1,080,000,000 1,225,000,000 1,603,000,000 -455,000,000 -728,000,000 965,000,000 1,176,000,000 -155,000,000 167,000,000 373,000,000 913,000,000 -63,000,000 -151,000,000 286,000,000 755,000,000 -4,612,000,000 1,372,000,000 964,000,000 2,691,000,000 -826,000,000 363,000,000 617,000,000 1,725,000,000 -1,151,000,000 81,000,000 751,000,000 
          cash flows from investing activities:
                                                                                        
          capital expenditures
        -1,995,000,000 -43,000,000 -134,000,000 -501,000,000 -1,537,000,000 -23,000,000 89,000,000 -583,000,000 -2,678,000,000 83,000,000 121,000,000 -1,046,000,000 -2,852,000,000 -85,000,000 -477,000,000 -510,000,000 -370,000,000 -40,000,000 -95,000,000 -426,000,000 24,000,000 111,000,000 -224,000,000 -652,000,000 -145,000,000 -70,000,000 -160,000,000 -1,468,000,000 67,000,000 -112,000,000 -409,000,000 -1,485,000,000 -87,000,000 -137,000,000 -414,000,000 -1,574,000,000 -2,000,000 -24,000,000 -438,000,000 -1,811,000,000 198,000,000 145,000,000 -573,000,000 -1,315,000,000 67,000,000 -93,000,000 -407,000,000 -1,179,000,000 -75,000,000 341,000,000 -534,000,000 -942,000,000 10,000,000 -289,000,000 -127,000,000 -692,000,000 -61,000,000 -57,000,000 -393,000,000 59,000,000 -20,000,000 -139,000,000 -387,000,000 -11,000,000 -102,000,000 -85,000,000 -745,000,000 45,000,000 141,000,000 -364,000,000 -1,012,000,000 19,000,000 -13,000,000 -325,000,000 -1,018,000,000 23,000,000 -142,000,000 -262,000,000 
          free cash flows
        -440,000,000 -157,000,000 -593,000,000 359,000,000 -1,188,000,000 113,000,000 170,000,000 -687,000,000 -130,000,000 -717,000,000 831,000,000 -340,000,000 704,000,000 -1,757,000,000 358,000,000 561,000,000 2,527,000,000 -2,620,000,000 1,360,000,000 550,000,000 -503,000,000 -1,923,000,000 1,385,000,000 -601,000,000 2,244,000,000 -20,000,000 -209,000,000 945,000,000 2,154,000,000 -293,000,000 517,000,000 593,000,000 1,448,000,000 163,000,000 -1,016,000,000 1,211,000,000 1,863,000,000 -258,000,000 -528,000,000 1,178,000,000 591,000,000 407,000,000 -680,000,000 879,000,000 1,347,000,000 -1,031,000,000 126,000,000 712,000,000 870,000,000 -425,000,000 136,000,000 449,000,000 658,000,000 329,000,000 -1,369,000,000 1,098,000,000 911,000,000 -516,000,000 -728,000,000 908,000,000 783,000,000 -96,000,000 147,000,000 234,000,000 526,000,000 -74,000,000 -253,000,000 201,000,000 10,000,000 -4,567,000,000 1,513,000,000 600,000,000 1,679,000,000 -807,000,000 350,000,000 292,000,000 707,000,000 -1,128,000,000 -61,000,000 489,000,000 
          proceeds from sale-leaseback transactions
           24,000,000                                                                             
          purchases of short-term investments
        -370,000,000 219,000,000 -268,000,000 -51,000,000 -4,378,000,000 896,000,000 146,000,000 -1,678,000,000 -5,350,000,000 -98,000,000 682,000,000 -2,204,000,000 -3,849,000,000 -198,000,000 -620,000,000 -925,000,000 -4,299,000,000 126,000,000 -327,000,000 -1,324,000,000 -3,544,000,000 -220,000,000 -287,000,000 -1,029,000,000 -1,593,000,000 21,000,000 -299,000,000 -251,000,000 -1,731,000,000 52,000,000 -530,000,000 -200,000,000 -1,849,000,000 28,000,000 4,000,000 -563,000,000 -1,747,000,000 132,000,000 -517,000,000 -256,000,000 -1,480,000,000 56,000,000 -246,000,000 -316,000,000 -2,665,000,000 744,000,000 -389,000,000 -770,000,000 -2,239,000,000 4,000,000 -175,000,000 -725,000,000 -1,818,000,000 -30,000,000 -12,000,000 -621,000,000 -3,837,000,000 254,000,000 -295,000,000 -1,484,000,000 -4,473,000,000 649,000,000 -420,000,000 -1,380,000,000 -4,399,000,000 -313,000,000 303,000,000 -1,697,000,000 -5,092,000,000 1,432,000,000 -1,005,000,000 -1,221,000,000 -3,551,000,000 -377,000,000 -244,000,000 -914,000,000     
          proceeds from sales of short-term and other investments
        1,343,000,000 278,000,000 -1,082,000,000 1,154,000,000 4,374,000,000 -199,000,000 100,000,000 1,720,000,000 5,185,000,000 578,000,000 149,000,000 1,679,000,000 4,090,000,000 722,000,000 -320,000,000 1,300,000,000 3,820,000,000 -26,000,000 59,000,000 1,218,000,000 3,145,000,000 373,000,000 -130,000,000 948,000,000 1,901,000,000 17,000,000 -47,000,000 575,000,000 1,811,000,000 -43,000,000 14,000,000 560,000,000 1,655,000,000 -7,000,000 17,000,000 556,000,000 1,714,000,000 -42,000,000 61,000,000 530,000,000 1,714,000,000 -105,000,000 5,000,000 609,000,000 2,380,000,000 2,000,000 -16,000,000 819,000,000 2,393,000,000 12,000,000                               
          net cash from investing activities
        -1,001,000,000 454,000,000 -1,505,000,000 623,000,000 -719,000,000 664,000,000 379,000,000 -585,000,000 -2,868,000,000 563,000,000 950,000,000 -1,577,000,000 -2,626,000,000 435,000,000 -1,416,000,000 -139,000,000 -852,000,000 57,000,000 -268,000,000 -201,000,000 418,000,000 -766,000,000 337,000,000 -5,000,000 56,000,000 -107,000,000 -416,000,000 164,000,000 -1,434,000,000 90,000,000 -621,000,000 -73,000,000 -1,788,000,000 -36,000,000 -114,000,000 -470,000,000 -1,688,000,000 90,000,000 -499,000,000 -175,000,000 -1,654,000,000 148,000,000 -105,000,000 -302,000,000 -1,683,000,000 813,000,000 -499,000,000 -358,000,000 -1,025,000,000 -59,000,000 172,000,000 -472,000,000 -556,000,000 78,000,000 -343,000,000 -12,000,000 -914,000,000 452,000,000 -358,000,000 -231,000,000 -953,000,000 298,000,000 -288,000,000 -322,000,000 -1,272,000,000 80,000,000 261,000,000 -638,000,000 -932,000,000 1,218,000,000 -1,138,000,000 -126,000,000 -1,213,000,000 217,000,000 -262,000,000 -271,000,000 -1,156,000,000 141,000,000 -171,000,000 -309,000,000 
          cash flows from financing activities:
                                                                                        
          proceeds from issuance of long-term debt
                            4,497,000,000 -2,872,000,000 3,497,000,000 500,000,000                                                         
          payroll support program stock warrants repurchase
                                                                                        
          proceeds from employee stock plans
        45,000,000 -1,000,000 -2,000,000 17,000,000 45,000,000 15,000,000 35,000,000 -1,000,000 5,000,000 9,000,000 33,000,000 -1,000,000 7,000,000 6,000,000 38,000,000 13,000,000 35,000,000 2,000,000 11,000,000 31,000,000 -1,000,000 10,000,000 26,000,000 9,000,000 22,000,000 7,000,000 23,000,000 -5,000,000 11,000,000 37,000,000 1,000,000 -5,000,000 13,000,000 87,000,000 -2,000,000 -24,000,000 49,000,000 84,000,000 -1,000,000 7,000,000 6,000,000 22,000,000 -7,000,000 7,000,000 5,000,000 16,000,000 -23,000,000 23,000,000 4,000,000 45,000,000 -13,000,000 11,000,000 12,000,000 16,000,000 4,000,000 32,000,000 68,000,000 6,000,000 11,000,000 103,000,000 22,000,000 -64,000,000 78,000,000 170,000,000 61,000,000 -78,000,000 107,000,000 
          repurchase of common stock
        -2,300,000,000 1,250,000,000 -750,000,000 -750,000,000                    -451,000,000 -1,500,000,000 -50,000,000 50,000,000 -500,000,000 -1,500,000,000 -500,000,000 -1,300,000,000 100,000,000 150,000,000 -550,000,000 -1,500,000,000 450,000,000 -200,000,000 -500,000,000 -680,000,000 -120,000,000 -80,000,000 -300,000,000 -755,000,000 40,000,000 75,000,000 -315,000,000 -390,000,000 101,000,000 -151,000,000 -100,000,000 -350,000,000 175,000,000 -175,000,000 -50,000,000 -50,000,000               -54,000,000 -674,000,000 137,000,000 -255,000,000 -209,000,000 -702,000,000 191,000,000 -75,000,000 -214,000,000 
          payments of long-term debt and finance lease obligations
        -3,269,000,000 2,586,000,000 -2,587,000,000 -5,000,000 -1,326,000,000 -3,000,000 -8,000,000 -74,000,000 -3,000,000 51,000,000 -59,000,000 -758,000,000 -1,626,000,000 40,000,000 -93,000,000 -545,000,000 -24,000,000 24,000,000 -67,000,000 -780,000,000 100,000,000 -81,000,000 -78,000,000 -545,000,000 5,000,000 24,000,000 -99,000,000                                                     
          payments of cash dividends
        -210,000,000 -86,000,000 4,000,000 -107,000,000 -214,000,000   -215,000,000 -214,000,000   -214,000,000            -188,000,000 -276,000,000 2,000,000 80,000,000 -178,000,000 -241,000,000 2,000,000 55,000,000 -148,000,000 -199,000,000 1,000,000 47,000,000 -123,000,000 -160,000,000 1,000,000 33,000,000 -96,000,000 -131,000,000 1,000,000 31,000,000 -81,000,000 -98,000,000 1,000,000 14,000,000 -56,000,000 -43,000,000 -13,000,000 -15,000,000 -15,000,000   -7,000,000 -11,000,000 4,000,000 -7,000,000 -10,000,000 4,000,000 -7,000,000 -10,000,000   -7,000,000 -10,000,000 4,000,000 -7,000,000 -11,000,000 4,000,000 -7,000,000 -10,000,000 3,000,000 -7,000,000 
          proceeds of terminated interest rate derivative instruments
                                                                                        
          net cash from financing activities
        -4,259,000,000 3,746,000,000 -3,320,000,000 -858,000,000 -1,770,000,000 -214,000,000 236,000,000 -232,000,000 -223,000,000 -223,000,000 272,000,000 -262,000,000 -1,127,000,000 -1,690,000,000 99,000,000 -314,000,000 516,000,000 -774,000,000 153,000,000 464,000,000 8,416,000,000 -5,940,000,000 5,408,000,000 1,774,000,000 -2,300,000,000 -78,000,000 167,000,000 -779,000,000 -1,819,000,000 -32,000,000 -43,000,000 -602,000,000 -1,253,000,000 23,000,000 508,000,000 -984,000,000 -1,578,000,000 440,000,000 -150,000,000 -636,000,000 -415,000,000 -136,000,000 -66,000,000 -407,000,000 -1,002,000,000 94,000,000 35,000,000 -375,000,000 -626,000,000 102,000,000 -41,000,000 -286,000,000 -845,000,000 163,000,000 219,000,000 -484,000,000 -542,000,000 -132,000,000 -136,000,000 44,000,000 -118,000,000 20,000,000 4,000,000 -55,000,000 149,000,000 138,000,000 -86,000,000 129,000,000 1,595,000,000 -540,000,000 668,000,000 -69,000,000 -100,000,000 67,000,000 -342,000,000 -118,000,000 -814,000,000 373,000,000 -238,000,000 -122,000,000 
          net change in cash and cash equivalents
        -3,705,000,000 4,086,000,000 -5,284,000,000 625,000,000 -2,140,000,000 586,000,000 696,000,000 -921,000,000 -543,000,000 -460,000,000 1,932,000,000 -1,133,000,000 -197,000,000 -2,927,000,000 -482,000,000 618,000,000 2,561,000,000 -3,297,000,000 1,245,000,000 908,000,000 8,757,000,000 -8,653,000,000 7,019,000,000 1,392,000,000 652,000,000 -60,000,000 -388,000,000 490,000,000 369,000,000 -302,000,000 -35,000,000 327,000,000 -108,000,000 237,000,000 -485,000,000 171,000,000 171,000,000 274,000,000 -1,153,000,000 805,000,000 333,000,000 221,000,000 -996,000,000 743,000,000 -23,000,000 -191,000,000 -245,000,000 386,000,000 398,000,000 -307,000,000 -74,000,000 225,000,000 199,000,000 560,000,000 -1,204,000,000 729,000,000 147,000,000 -135,000,000 -1,222,000,000 778,000,000 105,000,000 163,000,000 -117,000,000 -4,000,000                 
          cash and cash equivalents at beginning of period
        4,034,000,000 -4,659,000,000 625,000,000 7,509,000,000 1,146,000,000 -225,000,000 -921,000,000 9,288,000,000 334,000,000 799,000,000 -1,133,000,000 9,492,000,000 -754,000,000 136,000,000 618,000,000 12,480,000,000 -3,061,000,000 2,153,000,000 908,000,000 11,063,000,000 -9,803,000,000 8,411,000,000 1,392,000,000 2,548,000,000 -592,000,000 102,000,000 490,000,000 1,854,000,000 -619,000,000 292,000,000 327,000,000 1,495,000,000 143,000,000 -314,000,000 171,000,000 1,680,000,000 -457,000,000 -348,000,000 805,000,000 1,583,000,000 -490,000,000 -253,000,000 743,000,000 1,282,000,000 -527,000,000 141,000,000 386,000,000 1,355,000,000 -376,000,000 151,000,000 225,000,000 1,113,000,000 -254,000,000 -475,000,000 729,000,000 829,000,000                        2,280,000,000 
          cash and cash equivalents at end of period
        329,000,000 -573,000,000 -4,659,000,000 8,134,000,000 -994,000,000 361,000,000 -225,000,000 8,367,000,000 -209,000,000 339,000,000 799,000,000 8,359,000,000 -951,000,000 -2,791,000,000 136,000,000 13,098,000,000 -500,000,000 -1,144,000,000 2,153,000,000 11,971,000,000 -1,046,000,000 -242,000,000 8,411,000,000 3,940,000,000 60,000,000 42,000,000 102,000,000 2,344,000,000 -250,000,000 -10,000,000 292,000,000 1,822,000,000 35,000,000 -77,000,000 -314,000,000 1,851,000,000 -286,000,000 -74,000,000 -348,000,000 2,388,000,000 -157,000,000 -32,000,000 -253,000,000 2,025,000,000 -550,000,000 -50,000,000 141,000,000 1,741,000,000 22,000,000 -156,000,000 151,000,000 1,338,000,000 -55,000,000 85,000,000 -475,000,000 1,558,000,000                        2,600,000,000 
          cash payments for:
                                                                                        
          interest, net of amount capitalized
        105,000,000 -50,000,000 42,000,000 11,000,000 206,000,000 -78,000,000 74,000,000 18,000,000 209,000,000 -77,000,000 77,000,000 19,000,000 263,000,000 -99,000,000 121,000,000 20,000,000    17,000,000    14,000,000 77,000,000 -22,000,000 18,000,000 15,000,000 89,000,000 -16,000,000 16,000,000 18,000,000 65,000,000 -2,000,000 -9,000,000 27,000,000 73,000,000 4,000,000 -4,000,000 27,000,000  12,000,000 -11,000,000 32,000,000  2,000,000 -1,000,000 34,000,000 94,000,000 13,000,000 -15,000,000 41,000,000    47,000,000     102,000,000 -1,000,000 34,000,000 121,000,000 -11,000,000 6,000,000 36,000,000 61,000,000 23,000,000 -9,000,000 25,000,000 42,000,000 11,000,000 -9,000,000 19,000,000 58,000,000 2,000,000 -2,000,000 20,000,000 
          supplemental disclosure of non-cash transactions:
                                                                                        
          right-of-use assets acquired or modified under operating leases
        44,000,000 -16,000,000 6,000,000 14,000,000 354,000,000                                                                            
          flight and ground equipment acquired or modified under finance leases
           -2,000,000                                                                            
          adjustments to reconcile net income to net cash from operating activities:
                                                                                        
          unrealized/realized loss on fuel derivative instruments
              1,000,000     24,000,000 -6,000,000 -54,000,000 34,000,000  15,000,000 -10,000,000 -7,000,000  11,000,000 4,000,000 2,000,000       3,000,000 -7,000,000   -33,000,000 27,000,000 -133,000,000 55,000,000 -210,000,000 88,000,000  13,000,000                                       
          assets constructed for others
            -16,000,000 -4,000,000 3,000,000 -9,000,000 -25,000,000 -2,000,000 -6,000,000 -15,000,000 -4,000,000 1,000,000 -4,000,000 -3,000,000   32,000,000    34,000,000     -46,000,000 9,000,000 7,000,000 -24,000,000 -109,000,000 30,000,000 2,000,000 -49,000,000 -76,000,000 -7,000,000 -15,000,000 -11,000,000 -70,000,000 -10,000,000 -22,000,000 -107,000,000 8,000,000 6,000,000 13,000,000                                 
          income taxes
          3,000,000 1,000,000   1,000,000 3,000,000 17,000,000 -5,000,000 4,000,000 2,000,000 12,000,000 1,000,000 3,000,000 4,000,000    1,000,000    5,000,000 610,000,000 -145,000,000 310,000,000 4,000,000 289,000,000 -132,000,000 166,000,000 4,000,000 763,000,000 -147,000,000 370,000,000 6,000,000 638,000,000 -301,000,000 492,000,000 73,000,000 1,031,000,000 -46,000,000 344,000,000 111,000,000 23,000,000 120,000,000   222,000,000 103,000,000 19,000,000 2,000,000    1,000,000     169,000,000 66,000,000     2,000,000 1,000,000 14,000,000 50,000,000 1,000,000 6,000,000 26,000,000 65,000,000 2,000,000 1,000,000 8,000,000 4,000,000   
          net loss
           -149,000,000    -231,000,000    -159,000,000                                                                     
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                        
          unrealized mark-to-market adjustment on available for sale securities
                   -4,000,000   -1,000,000 5,000,000                                                                 
          unrealized/realized gain on fuel derivative instruments
                                                                                        
          loss on extinguishment of debt
                    117,000,000                                                                    
          payments for repurchases and conversions of convertible debt
                    -409,000,000 -61,000,000 52,000,000 -230,000,000 -172,000,000                                                                
          adoption of accounting standards update 2020-06, debt
                       245,000,000                                                                 
          cash collateral received from (provided to) derivative counterparties
                -96,000,000 56,000,000 14,000,000 -30,000,000 256,000,000 -224,000,000      38,000,000 14,000,000 -17,000,000 17,000,000 -5,000,000            37,000,000 421,000,000 -233,000,000   -751,000,000 558,000,000 -360,000,000 -17,000,000         -19,000,000                            
          adjustments to reconcile net loss to cash from operating activities:
                                                                                        
          right-of-use assets acquired under operating leases
              -10,000,000 16,000,000 73,000,000 -13,000,000 -25,000,000 47,000,000 44,000,000 11,000,000 -21,000,000 24,000,000    218,000,000    25,000,000                                                         
          proceeds from payroll support program loan and warrants
                          114,000,000 511,000,000 886,000,000 -755,000,000                                                           
          flight equipment acquired against supplier credit memo
                                                                                        
          remeasurement of right-of-use asset and lease liability
                                                                                        
          unrealized/realized (gain) on fuel derivative instruments
                                                                                        
          supplemental disclosure of noncash transactions:
                                                                                        
          supplier proceeds
                              -172,000,000 300,000,000                                                         
          issuance of common stock
                                                                                        
          proceeds from term loan credit facility
                              1,683,000,000 1,000,000,000                                                         
          proceeds from revolving credit facility
                               1,000,000,000                                                         
          proceeds from convertible notes
                                                                                        
          payments of term loan credit facility
                                                                                        
          payments of revolving credit facility
                                                                                        
          payments of terminated interest rate derivative instruments
                            -28,000,000                                                            
          capitalized financing items
                            -178,000,000                                                            
          loss on partial extinguishment of convertible and unsecured notes
                      -29,000,000 72,000,000                                                                 
          cash collateral received from derivative counterparties
                       385,000,000            15,000,000  -65,000,000 10,000,000 65,000,000  52,000,000                  28,000,000    147,000,000                         
          unrealized/realized (gain) loss on fuel derivative instruments
                                                                                        
          loss on partial extinguishment of convertible notes
                        16,000,000                                                                
          supplier receivables
                                                                                        
          reimbursement for assets constructed for others
                                    162,000,000 -9,000,000 -122,000,000 139,000,000 109,000,000 -30,000,000 -2,000,000 49,000,000 74,000,000 8,000,000 15,000,000 10,000,000 15,000,000 6,000,000 1,000,000 2,000,000 1,000,000                                    
          repayment of construction obligation
                                    -22,000,000 -1,000,000 -7,000,000 -8,000,000 -2,000,000 -7,000,000 -2,000,000 -7,000,000 -1,000,000 -2,000,000 -8,000,000 -1,000,000 1,000,000 -3,000,000                                 
          capitalized financing costs
                                                                                        
          supplemental disclosure of noncash transactions
                                                                                        
          right-of-use assets acquired under finance leases
                                                                                        
          boeing 737-300 aircraft grounding charge
                                                                                        
          unrealized/realized gains on fuel derivative instruments
                                                                                        
          flight equipment under finance leases
                                   1,000,000                                                     
          loss on asset impairment
                                                                                        
          aircraft grounding charge
                                                                                       
          payments of long-term debt and capital lease obligations
                                    -244,000,000 -23,000,000 7,000,000 -82,000,000 -486,000,000 -47,000,000 310,000,000 -369,000,000 -455,000,000 -20,000,000 8,000,000 -56,000,000 -134,000,000 -39,000,000 11,000,000 -51,000,000 -513,000,000 25,000,000 -27,000,000 -46,000,000 -262,000,000 1,000,000 112,000,000 -164,000,000 -530,000,000 -10,000,000 393,000,000 -431,000,000 -492,000,000 -16,000,000 -2,000,000 -30,000,000 -116,000,000 -14,000,000 35,000,000 -60,000,000 -64,000,000   -35,000,000 -40,000,000 -9,000,000 13,000,000 -19,000,000 -21,000,000 -95,000,000 3,000,000 -9,000,000 -606,000,000 98,000,000 -62,000,000 -37,000,000 
          payments of convertible debt
                                                                                        
          flight equipment acquired through the assumption of debt
                                                                                       
          flight equipment under capital leases
                                    14,000,000   14,000,000 156,000,000 12,000,000 26,000,000 39,000,000   -86,000,000 169,000,000 145,000,000                                        
          proceeds from termination of interest rate derivative instrument
                                                                                        
          proceeds from termination of interest rate derivative instruments
                                                   12,000,000                                     
          unrealized loss on fuel derivative instruments
                                                   11,000,000 216,000,000 70,000,000       -173,000,000 -79,000,000 264,000,000 -201,000,000    10,000,000    21,000,000 2,000,000                
          interest
                                                                                        
          cash collateral received from (paid to) derivative counterparties
                                                     -193,000,000                                   
          unrealized gains on fuel derivative instruments
                                                       -60,000,000                                 
          cash collateral paid to derivative counterparties
                                                       11,000,000  133,000,000                               
          unrealized (gain) loss on fuel derivative instruments
                                                                -303,000,000 522,000,000    -183,000,000                   
          payment to acquire airtran, net of airtran cash on hand
                                                                                        
          payments for purchase of property and equipment
                                                        -1,179,000,000 -75,000,000 341,000,000 -534,000,000 -942,000,000 10,000,000 -289,000,000 -127,000,000 -692,000,000 -61,000,000                       
          fair value of equity consideration given to acquire airtran
                                                                                        
          fair value of common stock issued for conversion of debt
                                                                                        
          amortization of deferred gains on sale and leaseback of aircraft
                                                         -3,000,000 -9,000,000   -3,000,000                        -4,000,000 
          unrealized gain on fuel derivative instruments
                                                           -21,000,000                             
          proceeds from sales of short-term investments
                                                           787,000,000  95,000,000 -56,000,000 736,000,000 3,650,000,000 224,000,000 130,000,000 1,310,000,000 3,913,000,000 -410,000,000 152,000,000 1,197,000,000 3,512,000,000 405,000,000 59,000,000 1,144,000,000 4,905,000,000 -259,000,000 -274,000,000 1,459,000,000 3,350,000,000 575,000,000 -5,000,000 968,000,000     
          changes in certain assets and liabilities
                                                                                        
          other current assets
                                                               -51,000,000 -154,000,000 4,000,000 46,000,000 -92,000,000 -15,000,000 2,000,000 23,000,000 -18,000,000 -38,000,000 39,000,000 18,000,000 -46,000,000 -483,000,000 333,000,000 -260,000,000 26,000,000 -160,000,000 23,000,000 -36,000,000 -56,000,000 -34,000,000 209,000,000 -102,000,000 14,000,000 
          payments of convertible debt obligations
                                                                                        
          payment of credit line borrowing obligations
                                                                                        
          see accompanying notes.
                                                                                        
          issuance of long-term debt
                                                                        331,000,000 -208,000,000               
          proceeds from credit line borrowing
                                                                                       
          proceeds from sale leaseback transactions
                                                                                        
          payment of revolving credit facility obligations
                                                                                        
          adjustments to reconcile net income to
                                                                                        
          cash from operating activities:
                                                                                        
          amortization of deferred gains on sale and
                                                                                        
          leaseback of aircraft
                                                                 -3,000,000  -3,000,000    -3,000,000  -3,000,000  -4,000,000    
          cash collateral received from
                                                                                        
          derivative counterparties
                                                                 -360,000,000 -78,000,000 29,000,000  -115,000,000 125,000,000 5,000,000                 
          proceeds from termination of interest rate
                                                                                        
          derivative instrument
                                                                                        
          payment of credit line borrowing
                                                                                        
          cash and cash equivalents at
                                                                                        
          beginning of period
                                                                 -444,000,000 778,000,000 1,261,000,000  -121,000,000 -4,000,000 1,114,000,000  -199,000,000 -223,000,000 1,368,000,000  1,671,000,000 769,000,000 2,213,000,000 -215,000,000 -13,000,000 228,000,000 1,390,000,000  -8,000,000   
          cash and cash equivalents
                                                                                        
          at end of period
                                                                 -579,000,000 -444,000,000 2,039,000,000  42,000,000 -121,000,000 1,110,000,000  -44,000,000 -199,000,000 1,145,000,000  -2,263,000,000 1,671,000,000 2,982,000,000  -555,000,000 -13,000,000 1,618,000,000  -645,000,000   
          cash collateral received from (provided to) fuel
                                                                                        
          cash collateral received from fuel
                                                                                        
          purchases of property and equipment
                                                                   -57,000,000 -393,000,000 59,000,000 -20,000,000 -139,000,000 -387,000,000 -11,000,000 -102,000,000 -85,000,000 -745,000,000 45,000,000 141,000,000 -364,000,000 -1,012,000,000 19,000,000 -13,000,000 -325,000,000 -1,018,000,000 23,000,000 -142,000,000 -262,000,000 
          proceeds from termination of interest rate derivatives
                                                                   76,000,000                     
          cash collateral received from (provided to) fuel derivative counterparties
                                                                                        
          supplemental disclosures
                                                                                        
          proceeds from sale and leaseback transactions
                                                                          35,000,000 173,000,000             
          payment of revolving credit facility
                                                                                        
          share-based compensation expense
                                                                       3,000,000 10,000,000 3,000,000 14,000,000 -1,000,000 5,000,000 33,000,000 -9,000,000 13,000,000 60,000,000 -3,000,000 1,000,000 22,000,000 
          excess tax benefits from share-based
                                                                                        
          compensation arrangements
                                                                       2,000,000  -9,000,000 2,000,000 3,000,000  5,000,000           
          excess tax benefits from share-based compensation arrangements
                                                                                  30,000,000 -29,000,000     
          net change in cash and
                                                                                        
          cash equivalents
                                                                         155,000,000 24,000,000 -223,000,000  -3,934,000,000 902,000,000 769,000,000         
          debtor in possession loan to ata airlines, inc.
                                                                                        
          proceeds from revolving credit agreement
                                                                                        
          net increase in cash and cash equivalents
                                                                                       320,000,000 
          cash provided by operating activities:
                                                                                        
          payment for assets of ata airlines, inc.
                                                                                        
          net increase in cash
                                                                                        
          and cash equivalents
                                                                                  -241,000,000 228,000,000  -637,000,000   
          noncash rights to airport gates acquired through reduction in debtor in possession loan to ata airlines, inc.
                                                                                        
          proceeds from ata airlines, inc.
                                                                                        
          debtor in possession loan
                                                                                        
          proceeds from ata airlines, inc. debtor in possession loan
                                                                                       20,000,000 
          excess tax benefits from share-based compensation expense
                                                                                    -35,000,000 -23,000,000 26,000,000 -28,000,000 
          change in short-term investments
                                                                                     118,000,000 -8,000,000 -68,000,000 
          payment for assets from ata airlines, inc.
                                                                                        
          amortization of scheduled airframe inspections and repairs
                                                                                        
          income tax benefit from employee stock option exercises
                                                                                        
          initial payment for assets of ata airlines, inc.
                                                                                        
          proceeds from trust arrangement
                                                                                        
          payments of trust arrangement