{
  "cik": 1053507,
  "cik_padded": "0001053507",
  "entityName": "AMERICAN TOWER CORP /MA/",
  "fiscal_years": [
    {
      "accn": "0001053507-26-000035",
      "filed": "2026-02-24",
      "fiscal_year": 2025,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 364600000.0,
        "capex": 1680400000.0,
        "cash": 1474800000.0,
        "dividends_paid": 3180800000.0,
        "eps_diluted": 5.4,
        "free_cash_flow": 3783600000.0,
        "net_income": 2628500000.0,
        "operating_cash_flow": 5464000000.0,
        "operating_income": 4845800000.0,
        "revenue": 10644600000.0,
        "stockholders_equity": 3652500000.0,
        "total_assets": 63190400000.0,
        "total_liabilities": 52835100000.0
      },
      "period_end": "2025-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "payout_ratio": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 14.465462012320328,
        "net_margin": 0.2469327170584146,
        "operating_margin": 0.45523551847885313,
        "payout_ratio": 1.2101198402130493,
        "revenue_growth_yoy": 0.051090133501856386,
        "roa_avg2y": 0.042303798731449335,
        "roa_period_end": 0.04159650833037929,
        "roe_avg2y": 0.7472955492060784,
        "roe_period_end": 0.7196440793976728
      }
    },
    {
      "accn": "0001053507-26-000035",
      "filed": "2026-02-24",
      "fiscal_year": 2024,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 0.0,
        "capex": 1590000000.0,
        "cash": 1999600000.0,
        "dividends_paid": 3027300000.0,
        "eps_diluted": 4.82,
        "free_cash_flow": 3700500000.0,
        "net_income": 2280200000.0,
        "operating_cash_flow": 5290500000.0,
        "operating_income": 4516500000.0,
        "revenue": 10127200000.0,
        "stockholders_equity": 3382200000.0,
        "total_assets": 61077400000.0,
        "total_liabilities": 51428700000.0
      },
      "period_end": "2024-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "payout_ratio": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 15.205694518360831,
        "net_margin": 0.22515601548305553,
        "operating_margin": 0.44597717039260604,
        "payout_ratio": 1.3276466976581,
        "revenue_growth_yoy": 0.011485987095743192,
        "roa_avg2y": 0.03587899767908422,
        "roa_period_end": 0.03733295785347772,
        "roe_avg2y": 0.6016041369848557,
        "roe_period_end": 0.6741765714623618
      }
    },
    {
      "accn": "0001053507-26-000035",
      "filed": "2026-02-24",
      "fiscal_year": 2023,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 0.0,
        "capex": 1798100000.0,
        "cash": 1753700000.0,
        "dividends_paid": 3006700000.0,
        "eps_diluted": 3.18,
        "free_cash_flow": 2924300000.0,
        "net_income": 1367100000.0,
        "operating_cash_flow": 4722400000.0,
        "operating_income": 3125500000.0,
        "revenue": 10012200000.0,
        "stockholders_equity": 4198200000.0,
        "total_assets": 66027600000.0,
        "total_liabilities": 55162200000.0
      },
      "period_end": "2023-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "payout_ratio": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 13.139488352150922,
        "net_margin": 0.13654341703122191,
        "operating_margin": 0.31216915363256825,
        "payout_ratio": 2.199327042645015,
        "revenue_growth_yoy": 0.03802849026478943,
        "roa_avg2y": 0.02052362183151294,
        "roa_period_end": 0.02070497791832506,
        "roe_avg2y": 0.279839518555667,
        "roe_period_end": 0.32563955981134773
      }
    },
    {
      "accn": "0001053507-25-000025",
      "filed": "2025-02-25",
      "fiscal_year": 2022,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 18800000.0,
        "capex": 1873600000.0,
        "cash": 1548900000.0,
        "dividends_paid": 2715300000.0,
        "eps_diluted": 3.82,
        "free_cash_flow": 1822600000.0,
        "net_income": 1696700000.0,
        "operating_cash_flow": 3696200000.0,
        "operating_income": 2738600000.0,
        "revenue": 9645400000.0,
        "stockholders_equity": 5572400000.0,
        "total_assets": 67194500000.0,
        "total_liabilities": 54786000000.0
      },
      "period_end": "2022-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "payout_ratio": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 9.831670375421721,
        "net_margin": 0.17590768656561678,
        "operating_margin": 0.2839280900740249,
        "payout_ratio": 1.6003418400424354,
        "revenue_growth_yoy": 0.030832861310904253,
        "roa_avg2y": 0.024754454255250857,
        "roa_period_end": 0.025250578544374912,
        "roe_avg2y": 0.31852143876248407,
        "roe_period_end": 0.30448280812576267
      }
    },
    {
      "accn": "0001053507-24-000011",
      "filed": "2024-02-27",
      "fiscal_year": 2021,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 0.0,
        "capex": 1376700000.0,
        "cash": 1949900000.0,
        "dividends_paid": 2271000000.0,
        "eps_diluted": 5.66,
        "free_cash_flow": 3443200000.0,
        "net_income": 2567600000.0,
        "operating_cash_flow": 4819900000.0,
        "operating_income": 3132000000.0,
        "revenue": 9356900000.0,
        "stockholders_equity": 5081200000.0,
        "total_assets": 69887900000.0,
        "total_liabilities": 60818300000.0
      },
      "period_end": "2021-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "payout_ratio": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 11.969278910493584,
        "net_margin": 0.2744071220169073,
        "operating_margin": 0.33472624480330027,
        "payout_ratio": 0.8844835644181337,
        "revenue_growth_yoy": 0.16357644718025244,
        "roa_avg2y": 0.04384510431057006,
        "roa_period_end": 0.03673883461944056,
        "roe_avg2y": 0.5597131241348491,
        "roe_period_end": 0.5053137054239156
      }
    },
    {
      "accn": "0001053507-23-000023",
      "filed": "2023-02-23",
      "fiscal_year": 2020,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 56000000.0,
        "capex": 1031700000.0,
        "cash": 1746300000.0,
        "dividends_paid": 1928200000.0,
        "eps_diluted": 3.79,
        "free_cash_flow": 2849700000.0,
        "net_income": 1691500000.0,
        "operating_cash_flow": 3881400000.0,
        "operating_income": 2887500000.0,
        "revenue": 8041500000.0,
        "stockholders_equity": 4093500000.0,
        "total_assets": 47233500000.0,
        "total_liabilities": 42453000000.0
      },
      "period_end": "2020-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "payout_ratio": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 10.370831806522535,
        "net_margin": 0.21034632842131443,
        "operating_margin": 0.35907479947770937,
        "payout_ratio": 1.1399349689624594,
        "revenue_growth_yoy": 0.06084191918525652,
        "roa_avg2y": 0.037574234937263355,
        "roa_period_end": 0.03581144738374247,
        "roe_avg2y": 0.36977122932811596,
        "roe_period_end": 0.41321607426407714
      }
    },
    {
      "accn": "0001053507-22-000017",
      "filed": "2022-02-25",
      "fiscal_year": 2019,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 19600000.0,
        "capex": 991300000.0,
        "cash": 1501200000.0,
        "dividends_paid": 1603000000.0,
        "eps_diluted": 4.24,
        "free_cash_flow": 2761300000.0,
        "net_income": 1916600000.0,
        "operating_cash_flow": 3752600000.0,
        "operating_income": 2688400000.0,
        "revenue": 7580300000.0,
        "stockholders_equity": 5055400000.0,
        "total_assets": 42801600000.0,
        "total_liabilities": 36214700000.0
      },
      "period_end": "2019-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "payout_ratio": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 7.163567670214029,
        "net_margin": 0.2528395973774125,
        "operating_margin": 0.3546561481735552,
        "payout_ratio": 0.8363769174579986,
        "revenue_growth_yoy": 0.018843832744183546,
        "roa_avg2y": 0.050561916319316204,
        "roa_period_end": 0.044778699861687414,
        "roe_avg2y": 0.36887841023913776,
        "roe_period_end": 0.37911935751869286
      }
    },
    {
      "accn": "0001053507-21-000026",
      "filed": "2021-02-25",
      "fiscal_year": 2018,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 232800000.0,
        "capex": 913200000.0,
        "cash": 1208700000.0,
        "dividends_paid": 1323500000.0,
        "eps_diluted": 2.77,
        "free_cash_flow": 2835100000.0,
        "net_income": 1264700000.0,
        "operating_cash_flow": 3748300000.0,
        "operating_income": 1905000000.0,
        "revenue": 7440100000.0,
        "stockholders_equity": 5336100000.0,
        "total_assets": 33010400000.0,
        "total_liabilities": 26106000000.0
      },
      "period_end": "2018-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "payout_ratio": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 4.892337100129308,
        "net_margin": 0.1699842744049139,
        "operating_margin": 0.25604494563245117,
        "payout_ratio": 1.0464932395034396,
        "revenue_growth_yoy": 0.11647833851048185,
        "roa_avg2y": 0.03819420850528579,
        "roa_period_end": 0.038312168286358236,
        "roe_period_end": 0.2370083019433669
      }
    },
    {
      "accn": "0001053507-20-000028",
      "filed": "2020-02-25",
      "fiscal_year": 2017,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "total_assets": "USD"
      },
      "fundamentals": {
        "buybacks": 766300000.0,
        "capex": 803600000.0,
        "cash": 802100000.0,
        "dividends_paid": 1073000000.0,
        "eps_diluted": 2.67,
        "free_cash_flow": 2122000000.0,
        "net_income": 1225400000.0,
        "operating_cash_flow": 2925600000.0,
        "operating_income": 1998400000.0,
        "revenue": 6663900000.0,
        "total_assets": 33214300000.0
      },
      "period_end": "2017-12-31",
      "ratio_units": {
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "payout_ratio": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio"
      },
      "ratios": {
        "net_margin": 0.1838863128198202,
        "operating_margin": 0.2998844520475998,
        "payout_ratio": 0.8756324465480659,
        "roa_avg2y": 0.038237916666991716,
        "roa_period_end": 0.03689374757258169
      }
    },
    {
      "accn": "0001053507-17-000009",
      "filed": "2017-02-27",
      "fiscal_year": 2016,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "dividends_paid": "USD",
        "eps_diluted": "USD/shares",
        "net_income": "USD",
        "operating_income": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 682505000.0,
        "cash": 787161000.0,
        "dividends_paid": 886116000.0,
        "eps_diluted": 1.98,
        "net_income": 970359000.0,
        "operating_income": 1853029000.0,
        "stockholders_equity": 6763895000.0,
        "total_assets": 30879150000.0,
        "total_liabilities": 22811730000.0
      },
      "period_end": "2016-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "payout_ratio": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 3.3725730514740397,
        "payout_ratio": 0.9131836773812578,
        "roa_period_end": 0.03142440773143043,
        "roe_avg2y": 0.14466157020191608,
        "roe_period_end": 0.1434615705891354
      }
    },
    {
      "accn": "0001053507-17-000009",
      "filed": "2017-02-27",
      "fiscal_year": 2015,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "stockholders_equity": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 0.0,
        "stockholders_equity": 6651679000.0,
        "total_liabilities": 20191454000.0
      },
      "period_end": "2015-12-31",
      "ratio_units": {
        "leverage": "ratio"
      },
      "ratios": {
        "leverage": 3.0355424547696903
      }
    },
    {
      "accn": "0001193125-13-077821",
      "filed": "2013-02-27",
      "fiscal_year": 2012,
      "form": "10-K",
      "fundamental_units": {
        "operating_cash_flow": "USD"
      },
      "fundamentals": {
        "operating_cash_flow": 1414391000.0
      },
      "period_end": "2012-12-31",
      "ratios": {}
    }
  ],
  "latest_filing": {
    "accn": "0001053507-26-000035",
    "filed": "2026-02-24",
    "form": "10-K"
  },
  "note": "Static grepcent export of verified SEC companyfacts-derived values. Monetary values are raw reported units from grepcent's resolved facts; no scaling and no FX conversion. Capex, dividends, and buybacks are reported as positive outflow magnitudes. ROE/ROA include both period-end basis (site-consistent) and average-of-two-years basis where the prior-year denominator exists.",
  "schema_version": "1",
  "sic": "6798",
  "sic_description": "Real Estate Investment Trusts",
  "source_urls": {
    "sec_companyfacts": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001053507.json",
    "sec_submissions": "https://data.sec.gov/submissions/CIK0001053507.json"
  },
  "ticker": "AMT"
}
