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Supplemental Guarantor Condensed Consolidating Financial Statements Supplemental Guarantor Condensed Consolidating Statements of Income (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Net sales |  |  |  |
External | $ 1,006.9 | $ 971.6 | $ 3,001.5 | $ 2,944.7
Intercompany | 0.0 | 0.0 | 0.0 | 0.0
Total net sales | 1,006.9 | 971.6 | 3,001.5 | 2,944.7
Cost of goods sold | 825.7 | 813.3 | 2,454.9 | 2,469.1
Gross profit | 181.2 | 158.3 | 546.6 | 475.6
Selling, general and administrative expenses | 79.9 | 65.5 | 235.4 | 204.6
Operating Income (loss) | 101.3 | 92.8 | 311.2 | 271.0
Non-operating income (expense), net | (21.8) | (17.5) | (63.6) | (61.8)
Income (loss) before income taxes | 79.5 | 75.3 | 247.6 | 209.2
Income tax expense (benefit) | 17.8 | 14.4 | 53.8 | 36.5
Earnings (loss) from equity in subsidiaries | 0.0 | 0.0 | 0.0 | 0.0
Net income (loss) before royalties | 61.7 | 60.9 | 193.8 | 172.7
Royalties | 0.0 | 0.0 | 0.0 | 0.0
Net income after royalties | 61.7 | 60.9 | 193.8 | 172.7
Other comprehensive income (loss), net of tax | (4.3) | (43.3) | 13.9 | (68.7)
Comprehensive income (loss) | 57.4 | 17.6 | 207.7 | 104.0
Holdings [Member] |  |  |  |
Net sales |  |  |  |
External | 0.0 | 0.0 | 0.0 | 0.0
Intercompany | 0.0 | 0.0 | 0.0 | 0.0
Total net sales | 0.0 | 0.0 | 0.0 | 0.0
Cost of goods sold | 0.0 | 0.0 | 0.0 | 0.0
Gross profit | 0.0 | 0.0 | 0.0 | 0.0
Selling, general and administrative expenses | 0.0 | 0.0 | 0.0 | 0.0
Operating Income (loss) | 0.0 | 0.0 | 0.0 | 0.0
Non-operating income (expense), net | 0.0 | 0.0 | 0.0 | 0.0
Income (loss) before income taxes | 0.0 | 0.0 | 0.0 | 0.0
Income tax expense (benefit) | 0.0 | 0.0 | 0.0 | 0.0
Earnings (loss) from equity in subsidiaries | 61.7 | 60.9 | 193.8 | 172.7
Net income (loss) before royalties | 61.7 | 60.9 | 193.8 | 172.7
Royalties | 0.0 | 0.0 | 0.0 | 0.0
Net income after royalties | 61.7 | 60.9 | 193.8 | 172.7
Other comprehensive income (loss), net of tax | (4.3) | (43.3) | 13.9 | (68.7)
Comprehensive income (loss) | 57.4 | 17.6 | 207.7 | 104.0
AAM Inc. [Member] |  |  |  |
Net sales |  |  |  |
External | 274.7 | 292.4 | 866.3 | 866.0
Intercompany | 3.7 | 2.1 | 8.1 | 7.6
Total net sales | 278.4 | 294.5 | 874.4 | 873.6
Cost of goods sold | 265.4 | 283.3 | 833.5 | 846.9
Gross profit | 13.0 | 11.2 | 40.9 | 26.7
Selling, general and administrative expenses | 72.6 | 60.3 | 210.3 | 179.9
Operating Income (loss) | (59.6) | (49.1) | (169.4) | (153.2)
Non-operating income (expense), net | (24.9) | (22.4) | (72.7) | (73.1)
Income (loss) before income taxes | (84.5) | (71.5) | (242.1) | (226.3)
Income tax expense (benefit) | 7.9 | 6.1 | 28.9 | 18.1
Earnings (loss) from equity in subsidiaries | 87.4 | 79.9 | 266.6 | 236.4
Net income (loss) before royalties | (5.0) | 2.3 | (4.4) | (8.0)
Royalties | 66.7 | 58.6 | 198.2 | 180.7
Net income after royalties | 61.7 | 60.9 | 193.8 | 172.7
Other comprehensive income (loss), net of tax | (4.3) | (43.3) | 13.9 | (68.7)
Comprehensive income (loss) | 57.4 | 17.6 | 207.7 | 104.0
Guarantor Subsidiaries [Member] |  |  |  |
Net sales |  |  |  |
External | 49.9 | 51.1 | 161.4 | 165.0
Intercompany | 62.7 | 66.0 | 185.7 | 196.3
Total net sales | 112.6 | 117.1 | 347.1 | 361.3
Cost of goods sold | 94.9 | 95.0 | 284.3 | 295.3
Gross profit | 17.7 | 22.1 | 62.8 | 66.0
Selling, general and administrative expenses | 0.0 | 0.0 | 0.0 | 0.0
Operating Income (loss) | 17.7 | 22.1 | 62.8 | 66.0
Non-operating income (expense), net | 2.9 | 2.3 | 8.4 | 7.4
Income (loss) before income taxes | 20.6 | 24.4 | 71.2 | 73.4
Income tax expense (benefit) | 0.1 | 0.1 | 0.3 | (0.2)
Earnings (loss) from equity in subsidiaries | (7.1) | (3.5) | (28.0) | (12.9)
Net income (loss) before royalties | 13.4 | 20.8 | 42.9 | 60.7
Royalties | 0.0 | 0.0 | 0.0 | 0.0
Net income after royalties | 13.4 | 20.8 | 42.9 | 60.7
Other comprehensive income (loss), net of tax | 1.0 | (33.8) | 23.2 | (61.0)
Comprehensive income (loss) | 14.4 | (13.0) | 66.1 | (0.3)
Non-Guarantor Subsidiaries [Member] |  |  |  |
Net sales |  |  |  |
External | 682.3 | 628.1 | 1,973.8 | 1,913.7
Intercompany | 4.4 | 4.4 | 12.2 | 14.3
Total net sales | 686.7 | 632.5 | 1,986.0 | 1,928.0
Cost of goods sold | 536.2 | 507.5 | 1,543.1 | 1,545.1
Gross profit | 150.5 | 125.0 | 442.9 | 382.9
Selling, general and administrative expenses | 7.3 | 5.2 | 25.1 | 24.7
Operating Income (loss) | 143.2 | 119.8 | 417.8 | 358.2
Non-operating income (expense), net | 0.2 | 2.6 | 0.7 | 3.9
Income (loss) before income taxes | 143.4 | 122.4 | 418.5 | 362.1
Income tax expense (benefit) | 9.8 | 8.2 | 24.6 | 18.6
Earnings (loss) from equity in subsidiaries | 0.0 | 0.0 | 0.0 | 0.0
Net income (loss) before royalties | 133.6 | 114.2 | 393.9 | 343.5
Royalties | (66.7) | (58.6) | (198.2) | (180.7)
Net income after royalties | 66.9 | 55.6 | 195.7 | 162.8
Other comprehensive income (loss), net of tax | (3.3) | (40.7) | 16.9 | (69.7)
Comprehensive income (loss) | 63.6 | 14.9 | 212.6 | 93.1
Consolidation, Eliminations [Member] |  |  |  |
Net sales |  |  |  |
External | 0.0 | 0.0 | 0.0 | 0.0
Intercompany | (70.8) | (72.5) | (206.0) | (218.2)
Total net sales | (70.8) | (72.5) | (206.0) | (218.2)
Cost of goods sold | (70.8) | (72.5) | (206.0) | (218.2)
Gross profit | 0.0 | 0.0 | 0.0 | 0.0
Selling, general and administrative expenses | 0.0 | 0.0 | 0.0 | 0.0
Operating Income (loss) | 0.0 | 0.0 | 0.0 | 0.0
Non-operating income (expense), net | 0.0 | 0.0 | 0.0 | 0.0
Income (loss) before income taxes | 0.0 | 0.0 | 0.0 | 0.0
Income tax expense (benefit) | 0.0 | 0.0 | 0.0 | 0.0
Earnings (loss) from equity in subsidiaries | (142.0) | (137.3) | (432.4) | (396.2)
Net income (loss) before royalties | (142.0) | (137.3) | (432.4) | (396.2)
Royalties | 0.0 | 0.0 | 0.0 | 0.0
Net income after royalties | (142.0) | (137.3) | (432.4) | (396.2)
Other comprehensive income (loss), net of tax | 6.6 | 117.8 | (54.0) | 199.4
Comprehensive income (loss) | $ (135.4) | $ (19.5) | $ (486.4) | $ (196.8)

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